Some personal notes
Just to have them available everywhere...
2026-03-11
bootable usb disk:
Bepaal usb device met
lsblk --scsi -m
Onder NAME staat de /dev naam, bijv sdd
Als iets onder sdd is gemount, umount het.
sudo dd if=/path/to/your/linux.iso of=/dev/disk2 bs=4M status=progress
sync
Paswoord password lost vergeten
Gebruik shift of esc om grub prompt te krijgen.
Enter 'e' en vind de regel die begint met linux en bevat ro.
vervang ro tot eind van de regel met
rw init=/bin/bash
ctrl-x of F10
systeem start op met een bash sessie voor root.
Doe je dingen, en sluit af met
exec /sbin/init
2026-03-06
run with memory leak check:
compile with:
CFLAGS='-fsanitize=address -fno-omit-frame-pointer -g'
programma levert na afloop een analyse.
valgrind
2026-02-12
epub remove drm
https://www.dotlinux.net/blog/calibre-drm-removal-for-ebooks-on-linux/#step-3-configure-the-dedrm-plugin
2026-01-05
rip dvd met ffmpeg
zie https://shyamjos.com/easily-rip-dvds-in-linux-with-ffmpeg/
bijvoorbeeld:
cat VTS_0*_*VOB | ffmpeg -i - -vcodec h264 -acodec mp2 rip.mp4
cat VTS_0*_*VOB | ffmpeg -i - -vf yadif -vcodec h264 -acodec mp2 rip.mp4
cat VTS_0*_*VOB | ffmpeg -i - -c:v libx264 -crf 23 rip.mp4
Kijk met vlc welke audiostream wordt gebruikt, bijvoorbeeld 7:
ffmpeg -i VTS_03_1.VOB -map 0:v:0 -map 0:a:6 rip.mp4
^ eentje minder dus
Uit https://trac.ffmpeg.org/wiki/Concatenate#differentcodec:
#!/bin/bash
ffmpeg -i /tmp/cd4/VTS_02_1.VOB -i /tmp/cd4/VTS_02_2.VOB -i /tmp/cd4/VTS_02_3.VOB \
-filter_complex "[0:v:0][0:a:7][1:v:0][1:a:0][2:v:0][2:a:0]concat=n=3:v=1:a=1[outv][outa]" \
-map "[outv]" -map "[outa]" -vcodec h264 -acodec mp3 ~/Videos/deel6.mp4
2025-11-23
ufw
https://ubuntuhandbook.org/index.php/2024/07/enable-disable-configure-firewall-ubuntu/
disable:
sudo ufw disable
enable:
sudo ufw enable
2025-11-16
remove moreinfo tag.
Over tags: zie
https://www.debian.org/Bugs/server-control#tag
Dus stuur een mail naar control@bugs.debian.org
Inhoud:
tags 1234567 - moreinfo
(vervang 1234567 door bug nummer)
Ternaire computer:
https://en.wikipedia.org/wiki/Setun
2025-11-02
linux mint : installeer ubuntu-restricted-extras
activeer firewall
installeer tlp (op laptop)
sudo fstrim -v
als dit commando werkt, dan:
sudo systemctl enable fstrim.timer
sudo systemctl start fstrim.timer
2025-09-26
macos in gnome-boxes:
https://www.reddit.com/r/gnome/comments/rqsnd2/macosx_using_gnome_boxes/
Mijn tree:
.local/share/gnome-boxes
├── images
│ ├── debianunstab
│ └── win11-2
└── OSX-KVM
├── BaseSystem.img
├── mac_hdd_ng.img
├── OpenCore
│ └── OpenCore.qcow2
├── OVMF_CODE.fd
└── OVMF_VARS-1024x768.fd
Alles voor macos in OSX-KVM
2025-09-21
Langzame boot na veranderen swap disk.
Zie https://forums.debian.net/viewtopic.php?t=141878
In /etc/initramfs-tools/conf.d/resume wordt de RESUME
variabele gedefinieerd. Kun je zetten op de blkid van
de swap, of uitcommenten.
Hierna:
update-initramfs -u -k all
en misschien update-grub
2025-09-14
copy gnome-boxes virtuele machine:
https://fedoraproject.org/wiki/Move_boxes_virtual_machines
NB: in de xml: de username zal moeten worden vervangen.
filetransfer gnome-boxes en host:
https://itsfoss.com/share-files-gnome-boxes/
extraatjes, zoals screen size:
https://www.spice-space.org/download/windows/spice-guest-tools/spice-guest-tools-latest.exe
https://www.spice-space.org/download/windows/spice-webdavd/spice-webdavd-x86-latest.msi
welk image hoort bij welke guest:
/home/gast/.config/libvirt/qemu
bevat bijvoorbeeld win11-2.xml
in de title tag staat de naam, bijvoorbeeld
<title>Win10_22H2_English_x64y1</title>
shared folder:
https://itsfoss.com/share-files-gnome-boxes/
2025-09-12
Installeer intel:
https://www.intel.com/content/www/us/en/docs/oneapi/installation-guide-linux/2025-2/intel-oneapi-base-toolkit.html#GUID-99CD18BB-27DF-4D6E-A4C3-47932D32A64E
https://www.intel.com/content/www/us/en/developer/articles/system-requirements/oneapi-base-toolkit/2025.html
https://www.intel.com/content/www/us/en/docs/oneapi/installation-guide-linux/2025-2/hpc-apt.html#HPC-APT
2025-08-09
virtualbox niet meer beschikbaar op trixie. Oplossing:
haal Virtualbox....run van
https://www.virtualbox.org/wiki/Testbuilds
chmod +x Virtualbox....run
sudo ./Virtualbox....run
2025-8-02
kodi stutter na 40 minuten
https://discourse.osmc.tv/t/resuming-video-after-a-long-pause-causes-audio-and-video-to-skip-jump-forwards-continuously-and-uncontrollably-various-hw-decoded-h-264-on-pi-3-kodi-20-2/96197
"I’ve concluded beyond a doubt that disabling Sync playback to display resolves the issue"
2025-07-02
iptables
https://kerneltalks.com/howto/how-to-disable-iptables-firewall-temporarily/
2025-06-14
gnome-terminal start niet:
https://stackoverflow.com/questions/65857217/gnome-terminal-server-locale-not-supported?__cf_chl_tk=3ZMGdLcbDE0chEseNNQ_2Pepasp5JZlPYCjvYjeR680-1749891495-1.0.1.1-atdTX.KdcOZIiPc6m1zc1BkIdUyo0pvZIOui7o3viKM
edit /etc/locale.gen
edit /etc/locale.conf:
LANG=en_US.UTF-8
sudo locale-gen
sudo reboot
2024-12-18
in sid:
https://wiki.kathenas.org/pmwiki.php/Kathenas/Article00000002
sudo sbuild-update -udcar unstable
sudo reprotest --store-dir /tmp/repro --vary=domain_host.use_sudo=1 *.dsc -- schroot unstable-amd64-sbuild
# untar bla-debian-bla.xz
lintian -v -i -I -E --pedantic --profile debian *.dsc/*.changes/*.buildinfo
# untar the source tar.gz, cd directory
cp -r ./debian .
lrc
2024-07-21
defaults voor browser, mime-apps in
~/.config/mimeapps.list
2024-05-14
user list in lightdm:
https://wiki.debian.org/LightDM#Enable_user_list
in /etc/lightdm/lightdm.conf.d/01_my.conf :
[Seat:*]
greeter-hide-users=false
2024-04-18
Virtualbox extension pack:
download van https://www.virtualbox.org/wiki/Downloads
In virtualboxmanager: file->tools->extension pack manager
2024-03-23
Bookworm op raspberry. Wifi valt er na een paar seconden uit.
Oorzaak: zo te zien uitzetten zonder shut down.
Oplossing:
sudo apt install --reinstall firmware-brcm80211
sudo poweroff
Dat was hem niet ...
Disable ipv6:
https://forums.raspberrypi.com/viewtopic.php?t=339699
edit /etc/sysctl.conf:
net.ipv6.conf.all.disable_ipv6 = 1
2024-03-17
Failed to load module "colorreload-gtk-module"
in ~/.config/gtk-3.0/settings.ini
comment uit: gtk-modules=colorreload-gtk-module
2024-03-05
the following packages have been kept back:
https://www.baeldung.com/linux/apt-packages-kept-back
$ apt update
$ apt dist-upgrade
$ apt full-upgrade
2024-02-28
.local not working avahi zeroconf
plots hield het .local gebeuren ermee op.
Oplossing:
https://forum.manjaro.org/t/multicast-not-working-avahi-shows-no-services/117891/10
firewall-cmd --zone public --add-service mdns --permanent
sudo systemctl restart firewalld
2024-02-25
prevent akonadi startup:
Son of /usr/bin/plasma_session it is autostarted by default thanks to some dedicated
.desktop entry in the /etc/xdg/autostart directory : org.kde.kalendarac.desktop
As usual with xdg services, disabling this system-wide entry (creating an overriding
entry containing Hidden=true) will efficiently prevent kalendarac from being
automatically launched at startup, this incidentally preventing the automatic
launch of all the akonadi stuff
2024-02-09
force deb firefox on ubuntu:
https://www.omgubuntu.co.uk/2022/04/how-to-install-firefox-deb-apt-ubuntu-22-04
apt dependency problemen:
sudo dpkg --configure -a
sudo apt --fix-broken install
2022-09-28
automount nfs
https://geraldonit.com/2023/02/25/auto-mount-nfs-share-using-systemd/
in /etc/fstab:
<server IP address>:<NFS share> <local mount location> nfs nofail,x-systemd.automount,x-systemd.requires=network-online.target,x-systemd.device-timeout=10s
2022-09-27
disable tracker.
Zie src/tracker
Let op: verwijder tracker ook uit de autostart van de gebruikers.
2022-09: omzetten doosje
schijven op jukebox:
/dev/sda1 /extra leeg 59G 24K
/dev/sda2 swap 7.5G
/dev/sda3 / diskb(recordings) 5.4T 4.9T
/dev/sdb1 /data1 flashrecordings, mythvideos 3.6T 1.8T
fdisk -l:
Disk /dev/sda: 5,47 TiB, 6001175126016 bytes, 11721045168 sectors
Disk model: WDC WD6003FFBX-6
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6E5AAB98-56C0-4851-B941-D750CCC5EFD0
Device Start End Sectors Size Type
/dev/sda1 2048 124999679 124997632 59,6G Linux filesystem
/dev/sda2 124999680 140623871 15624192 7,5G Linux swap
/dev/sda3 140623872 11721043967 11580420096 5,4T Linux filesystem
Disk /dev/sdb: 3,65 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: WDC WD40EZRX-00S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 2E8C5181-1644-48EC-A0A3-1865D2F814EF
Device Start End Sectors Size Type
/dev/sdb1 2048 7814035455 7814033408 3,7T Linux filesystem
==========
sda: 5.5T
sdb: 3.7T
+++++
schijven op doosje:
fdisk -l:
Disk /dev/sda: 931,53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 860
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 0596C525-B6E3-4D4B-AE18-CA2F23DEB9DD
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M EFI System
/dev/sda2 1050624 1953523711 1952473088 931G Linux filesystem
====
jukebox nfs mounts:
jukebox:/data gast/fotos, gast/public_html(25G)
jukebox:/data1
TODO
op jukebox:
copieer /data/gast/fotos naar nas GEDAAN
verwijder symlink /home/gast/public_html GEDAAN
copieer /data/gast/public_html naar /home/gast GEDAAN
copieer /data/home/mp3/MP3/ naar /lan/muziek GEDAAN
copieer /data1/mythvideos/ naar /lan/videos GEDAAN
disable mythbackend GEDAAN
delete /diskb/recordings GEDAAN
delete mysql - mythconverg GEDAAN
geen autostart server GEDAAN (/etc/lightdm/lightdm.conf.d/10-serverlogin.conf)
upgrade
doosje -> jukebox:
copieer /home/gast GEDAAN
copieer /home/carla GEDAAN
copieer /home/willem GEDAAN
copieer /var/local/geheim GEDAAN
maak groep 'geheim', pas /var/loal/geheim aan GEDAAN
installeer geheim.sh GEDAAN
copieer /usr/local/ !op nas gezet
copieer /usr/local/bin GEDAAN, alleen de noodzakelijke
doosje -> nas
copieer /home GEDAAN
copieer /etc GEDAAN
copieer /var GEDAAN
copieer /opt GEDAAN
copieer /usr/local GEDAAN
copieer /root GEDAAN
2022-09-23
zet mariadb paswoord:
https://www.digitalocean.com/community/tutorials/how-to-reset-your-mysql-or-mariadb-root-password
2023-09-21
remove snap: https://www.debugpoint.com/remove-snap-ubuntu/
sudo snap remove --purge firefox
sudo snap remove --purge snap-store
sudo snap remove --purge gnome-3-38-2004
sudo snap remove --purge gtk-common-themes
sudo snap remove --purge snapd-desktop-integration
sudo snap remove --purge bare
sudo snap remove --purge core20
sudo snap remove --purge snapd
sudo apt remove --autoremove snapd
en, als firefox problemen geeft:
umount /var/snap/firefox/common/host-hunspell
/etc/apt/preferences.d/nosnap.pref:
Package: snapd
Pin: release a=*
Pin-Priority: -10
Install firefox en software als deb files:
sudo apt install --install-suggests gnome-software
sudo add-apt-repository ppa:mozillateam/ppa
sudo apt update
sudo apt install -t 'o=LP-PPA-mozillateam' firefox
Enable automatic updates:
echo 'Unattended-Upgrade::Allowed-Origins:: "LP-PPA-mozillateam:${distro_codename}";' | sudo tee /etc/apt/apt.conf.d/51unattended-upgrades-firefox
/etc/apt/preferences.d/mozillateamppa
Package: firefox*
Pin: release o=LP-PPA-mozillateam
Pin-Priority: 501
Restore snap:
sudo rm /etc/apt/preferences.d/nosnap.pref
sudo apt update && sudo apt upgrade
sudo snap install snap-store
sudo apt install firefox
2023-09-20
jukebox suspend:
sudo systemctl disable nvidia-suspend
Removed /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service.
geheim:
sudo setfacl -d -m group:geheim:rwx geheim
sudo setfacl -m group:geheim:rwx geheim
Voeg bevoegde gebruikers toe aan group geheim
2023-06-02
ffmpeg voor llk
ffmpeg -i 20220423_Martin_kyrie.mp4 -vf scale=-2:360 -c:v libx264 -crf 18 -movflags +faststart 360.mp4
of
ffmpeg -i 20220423_Martin_kyrie.mp4 -vf scale=-2:360 -c:a copy -c:v libx264 -crf 22 -movflags +faststart 360c22.mp4
2023-04-29
prevent pulseaudio to connect with remote server:
paprefs
uncheck Network server-> Enable network access to local sound devices
2023-03-19
convert .mov to .mp4:
https://mrcoles.com/convert-mov-mp4-ffmpeg/
ffmpeg -i my-video.mov -vcodec h264 -acodec aac my-video.mp4
2022-12-11
installeer php8.1 op focal (ubuntu 20.04)
https://medium.com/@laraveltuts/how-to-install-and-run-php-8-x-on-ubuntu-20-04-8f18e7565c41
sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt update
sudo apt install php8.1
sudo apt install php8.1-common php8.1-mysql php8.1-xml php8.1-xmlrpc php8.1-curl php8.1-gd php8.1-imagick php8.1-cli php8.1-dev php8.1-imap php8.1-mbstring php8.1-opcache php8.1-soap php8.1-zip php8.1-redis php8.1-intl php8.1-bz2 -y
Na installatie: zie volgend item
2202-12-10
installeer php8.1 op bullseye:
https://computingforgeeks.com/how-to-install-php-on-debian-linux-2/
sudo apt install -y lsb-release ca-certificates apt-transport-https software-properties-common gnupg2
echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/sury-php.list
curl -fsSL https://packages.sury.org/php/apt.gpg| sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/sury-keyring.gpg
/etc/apt/sources.list.d/sury-php.list: verander 'elsie' in 'bullseye'
sudo apt update
sudo apt install php8.1
en de volgende (vergelijk met dpkg -l | grep php7.4)
sudo apt install php8.1-bz2 php8.1-cli php8.1-common php8.1-curl
sudo apt install php8.1-gd php8.1-json # dit lukt niet altijd
sudo apt install php8.1-mbstring php8.1-mysql php8.1-opcache php8.1-readline
sudo apt install php8.1-xml php8.1-zip
na installatie:
sudo a2enmod php8.1
sudo a2dismod php7.4
pas /etc/php/8.1/apache2/php.ini aan (vergelijk met de vorige versie)
edit /etc/apache2/mods-available/php8.1.conf (volg aanwijzing in de file)
2022-12-04
git disable color
https://git-scm.com/book/sv/v2/Customizing-Git-Git-Configuration
git config --global color.ui false
2022-11-12
disable suspend etc
https://www.tecmint.com/disable-suspend-and-hibernation-in-linux/ :
sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
check:
sudo systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target
En/Of:
/etc/gdm3/greeter.dconf-defaults
2022-10-05
disable matching, offending bij gebruik ssh:
in .ssh/config:
# Disable HostKey checking for servers which frequently change keys
Host 192.168.178.* *.local
UserKnownHostsFile /tmp/knownhosts
StrictHostKeyChecking no
2022-10-04
Trage ping op tex:
https://unix.stackexchange.com/questions/269661/how-to-turn-off-wireless-power-management-permanently
cat default-wifi-powersave-on.conf:
[connection]
wifi.powersave = 2
# 0: use default
# 1: don't touch existing setting
# 2: disable powersave
# 3: enable powersave
Maar tlp werkt ook, in /etc/tlp.conf:
WIFI_PWR_ON_AC=off
WIFI_PWR_ON_BAT=off
check met
sudo iw dev wlp2s0 get power_save
2022-10-01
Na plasma wil xfce4 niet starten, tenzij na een reboot.
Fix:
in /etc/gdm3/PostSession/Default
if [ "$USER" != root ] ; then
su -c "kill -s SIGTERM -1" "$USER"
sleep 2
su -c "kill -s SIGKILL -1" "$USER"
fi
2022-07-12
git en branches:
https://stackoverflow.com/questions/1783405/how-do-i-check-out-a-remote-git-branch
Maak een branch met de naam test:
git branch test
Switch naar test:
git checkout test
Stuur de branch naar remote:
git push -u origin test
Fetch remote branch:
git switch test
Mergen van een branch test naar main:
git checkout main
git merge test
Verwijderen locale branch test:
git branch -d test
Verwijderen remote branch test:
git push origin -d test
Terugdraaien nog niet gecommitte veranderingen:
git reset HEAD --hard
2022-07-12
jasmijnlaurier mail werkt niet meer.
Komt door google's beveiliging.
Oplossen door een app password in te stellen, zie
https://www.gmass.co/blog/gmail-smtp/
paswoord komt in /etc/postfix/sasl_passwd
dan:
sudo postmap /etc/postfix/sasl_passwd
service postfix restart
ALTER USER 'root'@'localhost' IDENTIFIED BY 'NewPassword';
https://www.cloudbooklet.com/install-phpmyadmin-on-ubuntu-20-04-with-apache/
https://www.cloudbooklet.com/how-to-install-lamp-apache-mysql-php-in-ubuntu-20-04/
2022-05-16
https://www.reddit.com/r/debian/comments/oj0z4w/debian_11_how_to_revert_back_to_pulseaudio/
systemctl --user unmask pulseaudio
systemctl --user --now disable pipewire-pulse
Warning: Stopping pipewire-pulse.service, but it can still be activated by:
pipewire-pulse.socket
systemctl --user --now enable pulseaudio.service pulseaudio.socket
reboot?
2022-03-24
Upgrade raspberry buster->bullseye
https://www.tomshardware.com/how-to/upgrade-raspberry-pi-os-to-bullseye-from-buster
sudo apt update
sudo apt dist-upgrade -y
sudo rpi-update
sudo reboot
sudo nano /etc/apt/sources.list
change buster -> bullseye
sudo apt update
sudo apt install gcc-8-base
kill ntp daemon
sudo apt dist-upgrade
en dan nog wat triviaal gedoe...
2022-03-02
remove snap: https://techwiser.com/remove-snap-ubuntu/
2022-02-19
soundbar bluetooth issues
https://askubuntu.com/questions/475987/a2dp-on-pulseaudio-terrible-choppy-skipping-audio
vind de parameters voor pactl-set-port-latency-offset:
pactl list | grep -Pzo '.*bluez_card(.*\n)*'
zet latency op 50000 usec:
pactl set-port-latency-offset bluez_card.38_68_A4_D6_7C_4B headset-output 50000
zo te zien is dit permanent. de default is 0
2022-01-17
rescen desktop files in xfce
xfce4-panel -r
xfwm4 --replace
2021-12-28
Om xsnow goed te laten draaien in bspwm:
bspc config honor_size_hints true
2021-12-10
Forceer synchronize time zodra netwerk up:
Raspberry:
https://askubuntu.com/questions/254826/how-to-force-a-clock-update-using-ntp
In rc.local:
( /etc/init.d/ntp stop
until ping -nq -c3 8.8.8.8; do
echo "Waiting for network..."
done
ntpd -gq
/etc/init.d/ntp start )&
2021-12-07
Installeren buster pbuilder:
pbuilder create --basetgz /var/cache/pbuilder/base-amd64-buster.tgz --distribution buster --architecture amd64
en:
pbuilder create --basetgz /var/cache/pbuilder/base-i386-buster.tgz --distribution buster --architecture i386
2021-12-01
debian-sid gebruikt nu liever pipewire in plaats van pulseaudio.
zie https://wiki.debian.org/BluetoothUser/a2dp
voor aanwijzingen voor bluetooth.
2021-11-26
Virtualbox grotere resolutie:
https://www.nakivo.com/blog/make-virtualbox-full-screen/
2021-11-24
numlock toestanden: zie /etc/default/numlockx
NUMLOCK=off
zie man numlockx
2021-11-17
Raspberry arm64: xcompmgr
Bijkt dat xcompmgr wordt gestart met flag '-a'
Zie /usr/lib/raspi-config/cmstart.sh
geactiveerd via /etc/xdg/autostart/xcompmgr.desktop
Dat levert verveende resultaten, ook voor plank.
Verander '-a' in '-n', en alles werkt zoals het hoort.
hdmi_modes:
https://www.raspberrypi.com/documentation/computers/config_txt.html
To set a custom display mode not listed here, see more information on the forums.
Note
Not all modes are available on all models.
These values are valid if hdmi_group=1 (CEA):
hdmi_mode Resolution Frequency Screen Aspect Notes
1 VGA (640x480) 60Hz 4:3
2 480p 60Hz 4:3
3 480p 60Hz 16:9
4 720p 60Hz 16:9
5 1080i 60Hz 16:9
6 480i 60Hz 4:3
7 480i 60Hz 16:9
8 240p 60Hz 4:3
9 240p 60Hz 16:9
10 480i 60Hz 4:3 pixel quadrupling
11 480i 60Hz 16:9 pixel quadrupling
12 240p 60Hz 4:3 pixel quadrupling
13 240p 60Hz 16:9 pixel quadrupling
14 480p 60Hz 4:3 pixel doubling
15 480p 60Hz 16:9 pixel doubling
16 1080p 60Hz 16:9
17 576p 50Hz 4:3
18 576p 50Hz 16:9
19 720p 50Hz 16:9
20 1080i 50Hz 16:9
21 576i 50Hz 4:3
22 576i 50Hz 16:9
23 288p 50Hz 4:3
24 288p 50Hz 16:9
25 576i 50Hz 4:3 pixel quadrupling
26 576i 50Hz 16:9 pixel quadrupling
27 288p 50Hz 4:3 pixel quadrupling
28 288p 50Hz 16:9 pixel quadrupling
29 576p 50Hz 4:3 pixel doubling
30 576p 50Hz 16:9 pixel doubling
31 1080p 50Hz 16:9
32 1080p 24Hz 16:9
33 1080p 25Hz 16:9
34 1080p 30Hz 16:9
35 480p 60Hz 4:3 pixel quadrupling
36 480p 60Hz 16:9 pixel quadrupling
37 576p 50Hz 4:3 pixel quadrupling
38 576p 50Hz 16:9 pixel quadrupling
39 1080i 50Hz 16:9 reduced blanking
40 1080i 100Hz 16:9
41 720p 100Hz 16:9
42 576p 100Hz 4:3
43 576p 100Hz 16:9
44 576i 100Hz 4:3
45 576i 100Hz 16:9
46 1080i 120Hz 16:9
47 720p 120Hz 16:9
48 480p 120Hz 4:3
49 480p 120Hz 16:9
50 480i 120Hz 4:3
51 480i 120Hz 16:9
52 576p 200Hz 4:3
53 576p 200Hz 16:9
54 576i 200Hz 4:3
55 576i 200Hz 16:9
56 480p 240Hz 4:3
57 480p 240Hz 16:9
58 480i 240Hz 4:3
59 480i 240Hz 16:9
60 720p 24Hz 16:9
61 720p 25Hz 16:9
62 720p 30Hz 16:9
63 1080p 120Hz 16:9
64 1080p 100Hz 16:9
65 Custom
66 720p 25Hz 64:27 Pi 4
67 720p 30Hz 64:27 Pi 4
68 720p 50Hz 64:27 Pi 4
69 720p 60Hz 64:27 Pi 4
70 720p 100Hz 64:27 Pi 4
71 720p 120Hz 64:27 Pi 4
72 1080p 24Hz 64:27 Pi 4
73 1080p 25Hz 64:27 Pi 4
74 1080p 30Hz 64:27 Pi 4
75 1080p 50Hz 64:27 Pi 4
76 1080p 60Hz 64:27 Pi 4
77 1080p 100Hz 64:27 Pi 4
78 1080p 120Hz 64:27 Pi 4
79 1680x720 24Hz 64:27 Pi 4
80 1680x720 25z 64:27 Pi 4
81 1680x720 30Hz 64:27 Pi 4
82 1680x720 50Hz 64:27 Pi 4
83 1680x720 60Hz 64:27 Pi 4
84 1680x720 100Hz 64:27 Pi 4
85 1680x720 120Hz 64:27 Pi 4
86 2560x720 24Hz 64:27 Pi 4
87 2560x720 25Hz 64:27 Pi 4
88 2560x720 30Hz 64:27 Pi 4
89 2560x720 50Hz 64:27 Pi 4
90 2560x720 60Hz 64:27 Pi 4
91 2560x720 100Hz 64:27 Pi 4
92 2560x720 120Hz 64:27 Pi 4
93 2160p 24Hz 16:9 Pi 4
94 2160p 25Hz 16:9 Pi 4
95 2160p 30Hz 16:9 Pi 4
96 2160p 50Hz 16:9 Pi 4
97 2160p 60Hz 16:9 Pi 4
98 4096x2160 24Hz 256:135 Pi 4
99 4096x2160 25Hz 256:135 Pi 4
100 4096x2160 30Hz 256:135 Pi 4
101 4096x2160 50Hz 256:135 Pi 4
102 4096x2160 60Hz 256:135 Pi 4
103 2160p 24Hz 64:27 Pi 4
104 2160p 25Hz 64:27 Pi 4
105 2160p 30Hz 64:27 Pi 4
106 2160p 50Hz 64:27 Pi 4
107 2160p 60Hz 64:27 Pi 4
Pixel doubling and quadrupling indicates a higher clock rate, with each pixel repeated two or four times respectively.
These values are valid if hdmi_group=2 (DMT):
hdmi_mode Resolution Frequency Screen Aspect Notes
1 640x350 85Hz
2 640x400 85Hz 16:10
3 720x400 85Hz
4 640x480 60Hz 4:3
5 640x480 72Hz 4:3
6 640x480 75Hz 4:3
7 640x480 85Hz 4:3
8 800x600 56Hz 4:3
9 800x600 60Hz 4:3
10 800x600 72Hz 4:3
11 800x600 75Hz 4:3
12 800x600 85Hz 4:3
13 800x600 120Hz 4:3
14 848x480 60Hz 16:9
15 1024x768 43Hz 4:3 incompatible with the Raspberry Pi
16 1024x768 60Hz 4:3
17 1024x768 70Hz 4:3
18 1024x768 75Hz 4:3
19 1024x768 85Hz 4:3
20 1024x768 120Hz 4:3
21 1152x864 75Hz 4:3
22 1280x768 60Hz 15:9 reduced blanking
23 1280x768 60Hz 15:9
24 1280x768 75Hz 15:9
25 1280x768 85Hz 15:9
26 1280x768 120Hz 15:9 reduced blanking
27 1280x800 60 16:10 reduced blanking
28 1280x800 60Hz 16:10
29 1280x800 75Hz 16:10
30 1280x800 85Hz 16:10
31 1280x800 120Hz 16:10 reduced blanking
32 1280x960 60Hz 4:3
33 1280x960 85Hz 4:3
34 1280x960 120Hz 4:3 reduced blanking
35 1280x1024 60Hz 5:4
36 1280x1024 75Hz 5:4
37 1280x1024 85Hz 5:4
38 1280x1024 120Hz 5:4 reduced blanking
39 1360x768 60Hz 16:9
40 1360x768 120Hz 16:9 reduced blanking
41 1400x1050 60Hz 4:3 reduced blanking
42 1400x1050 60Hz 4:3
43 1400x1050 75Hz 4:3
44 1400x1050 85Hz 4:3
45 1400x1050 120Hz 4:3 reduced blanking
46 1440x900 60Hz 16:10 reduced blanking
47 1440x900 60Hz 16:10
48 1440x900 75Hz 16:10
49 1440x900 85Hz 16:10
50 1440x900 120Hz 16:10 reduced blanking
51 1600x1200 60Hz 4:3
52 1600x1200 65Hz 4:3
53 1600x1200 70Hz 4:3
54 1600x1200 75Hz 4:3
55 1600x1200 85Hz 4:3
56 1600x1200 120Hz 4:3 reduced blanking
57 1680x1050 60Hz 16:10 reduced blanking
58 1680x1050 60Hz 16:10
59 1680x1050 75Hz 16:10
60 1680x1050 85Hz 16:10
61 1680x1050 120Hz 16:10 reduced blanking
62 1792x1344 60Hz 4:3
63 1792x1344 75Hz 4:3
64 1792x1344 120Hz 4:3 reduced blanking
65 1856x1392 60Hz 4:3
66 1856x1392 75Hz 4:3
67 1856x1392 120Hz 4:3 reduced blanking
68 1920x1200 60Hz 16:10 reduced blanking
69 1920x1200 60Hz 16:10
70 1920x1200 75Hz 16:10
71 1920x1200 85Hz 16:10
72 1920x1200 120Hz 16:10 reduced blanking
73 1920x1440 60Hz 4:3
74 1920x1440 75Hz 4:3
75 1920x1440 120Hz 4:3 reduced blanking
76 2560x1600 60Hz 16:10 reduced blanking
77 2560x1600 60Hz 16:10
78 2560x1600 75Hz 16:10
79 2560x1600 85Hz 16:10
80 2560x1600 120Hz 16:10 reduced blanking
81 1366x768 60Hz 16:9 NOT on Raspberry Pi 4
82 1920x1080 60Hz 16:9 1080p
83 1600x900 60Hz 16:9 reduced blanking
84 2048x1152 60Hz 16:9 reduced blanking
85 1280x720 60Hz 16:9 720p
86 1366x768 60Hz 16:9 reduced blanking
Kies hdmi_group=2 (voor normale monitor)
hdmi_mode=82 voor 1080p.
2021-10-31
Coredumps, waar zijn ze?
Wordt geregeld met /proc/sys/kernel/core_pattern
standaard staat dit op
|/usr/share/apport/apport %p %s %c %d %P %E
Geen idee waar ze dan blijven, zie ook /var/log/apport.log
Handiger:
sudo sysctl -w kernel.core_pattern=core
dan komen de coredumps in de directory waar ze voorkomen.
https://medium.com/@sourabhedake/core-dumps-how-to-enable-them-73856a437711
Nog beter: filetje in /etc/sysctl.d .
Mijn 60-coredump.conf deed het niet meer, maar na hernoemen
naar local.conf werkt de zaak weer.
/etc/sysctl.d/local.conf:
# wwvv
kernel.core_pattern=core-%p
Daarna:
sudo systemctl restart procps
2021-06-25
Anti stutter rhythmbox bij hoge systeembelasting:
https://ubuntuforums.org/showthread.php?t=766860&p=4816308#post4816308
in /etc/pulse/daemon.conf:
default-sample-rate = 44800
default-fragments = 8
default-fragment-size-msec = 10
2021-05-19
Vintage x11 programs: https://forums.linuxmint.com/viewtopic.php?t=346039
python javascript: http://pyjs.org/
2021-05-02
Android-x86
https://www.android-x86.org/documentation/virtualbox.html
2021-04-03
Volume:
amixer -D pulse set Master 5%+ --> (Volume Up)
amixer -D pulse set Master 5%- --> (Volume Down)
amixer -D pulse set Master toggle --> (Mute/Unmute)
2021-03-05
python3 als default:
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10
of
sudo apt install python-is-python3
2021-02-01
Forceer https voor een website:
https://www.hostinger.com/tutorials/ssl/forcing-https
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
https://realhosting.nl/helpdesk/hoe-forceer-ik-ssl-https-in-een-htaccess-bestand/
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
2021-01-22
transparent -> kleur
convert xpenguins.png -background white -alpha remove -alpha off white.png
2021-01-17
verander file manager:
https://help.ubuntu.com/community/DefaultFileManager
2020-12-16
ziggo zenderoverzicht:
https://www.ziggo.nl/televisie/zenderoverzicht/kabel-tv
2020-12-16
mythtv ivetv stopt meteen, problemen met channel number, zie
log van backend.
In mythtv-setup (channel editor)de offending channel verwijderen
lost het op.
Wellicht volstaat met invisible maken.
Zie ook:
https://forum.mythtv.org/viewtopic.php?t=2254
2020-12-12
git replace file with file from remote:
https://stackoverflow.com/questions/5288172/git-replace-local-version-with-remote-version
git checkout -- myoverwrittenfile
2020-11-07
mysql: increase table_open_cache
zie https://askubuntu.com/questions/1241013/cannot-increase-mysql-table-open-cache-in-ubuntu-20-04
systemctl edit mysql
[Services]
LimitNOFILE=20000
2020-11-07
ssl en apache2
zie /usr/share/doc/apache2/README.Debian.gz
installeer ssl-cert
voeg to in mysite.conf (in /atc/apache2/sites-available):
SSLEngine on
SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem
SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
als de hostname is veranderd oid:
(zie /usr/share/doc/apache2/README.Debian.gz)
make-ssl-cert generate-default-snakeoil --force-overwrite
2020-11-01
disable, Verhinder gebruik van swap:
https://serverfault.com/questions/684771/best-way-to-disable-swap-in-linux
systemctl mask dev-sdXX.swap
(change sdXX) to your real formatted swap partition
Wat is de swap partitie:
swapon --show
firefox hangt soms, pagina lijkt niet helemaal te laden
(wieltje bij url). Uitzetten van hardware acceleratie lijkt te
helpen: preferences->performance
disable 'Use recommended ...'
disable 'Use hardware accel... '
2020-10-26
phpmyadmin loopt in time limit:
voeg to in /etc/phpmyadmin/conf.d/ de file:
exectimelimit.php
met als inhoud:
<?php
/**
* maximum execution time in seconds (0 for no limit)
*
* @global integer $cfg['ExecTimeLimit']
*/
$cfg['ExecTimeLimit'] = 0;
Note: het is handiger om in include files de ?> weg te laten, zie
https://stackoverflow.com/questions/19953483/php-end-tag
2020-10-13
raspberry upgrade van stretch naar buster:
http://baddotrobot.com/blog/2019/08/29/upgrade-raspian-stretch-to-buster/
Na wat iteraties met 'apt upgrade' en 'apt install' werkt het
Geen netwerk naar sara.nl bijvoorbeeld.
In /etc/nsswitch.conf staat:
hosts: files mdns4_minimal [NOTFOUND=return] resolve [!UNAVAIL=return] dns
Veranderd in
hosts: files dns
en hij doet het weer
2020-11-04: weer teruggezet, want geen herkenning ban .local
2020-12-13: deed het weer niet. Oplossing:
https://askubuntu.com/questions/1012641/dns-set-to-systemds-127-0-0-53-how-to-change-permanently
apt install resolvconf
add 'nameserver 8.8.8.8' aan /etc/resolvconf/resolv.conf.d/tail
2020-10-12
icons op gnome desktop:
https://markperez.dev/blog/organize-desktop-icons-ubuntu/
2020-10-01
run autopkgtest:
https://packaging.ubuntu.com/html/auto-pkg-test.html
2020-09-29
monitor x11 xserver: xrestop
2020-09-20
convert met transparancy:
convert -background none xsnow.svg -resize 256x256 xsnow.png
2020-07-26
random patches in login screen in ubuntu 20.4
zie https://askubuntu.com/questions/1232228/random-patches-on-the-screen-after-upgradeing-to-ubuntu-20-04
Oplossing: /usr/share/X11/xorg.conf.2/20-intel.conf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "DRI" "3"
EndSection
2020-07-21
speaker test:
speaker-test -t wav -c 6
2020-07-14
inspect gtk3 app:
GTK_DEBUG=interactive myapp
of
GTK_DEBUG=all myapp
2020-06-24
wakeonlan
https://askubuntu.com/questions/764158/how-to-enable-wake-on-lan-wol-in-ubuntu-16-04 :
First, create the file /etc/systemd/system/wol@.service (keep the @ symbol). Put this in it:
<---
[Unit]
Description=Wake-on-LAN for %i
Requires=network.target
After=network.target
[Service]
ExecStart=/sbin/ethtool -s %i wol g
Type=oneshot
[Install]
WantedBy=multi-user.target
--->
systemctl enable wol@eth3 # replace eth3 by your interface
reboot and check:
ethtool eth3 | grep Wake # replace eth3 ...
Supports Wake-on: pumbg
Wake-on: g <=======
2020-06-12
nieuwe kernel in 18.04:
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
2020-05-14
onthoud ssh key:
bij login:
eval `ssh-agent -s`
in .ssh/config:
Host *
AddKeysToAgent yes
rhythmbox control: https://code.mendhak.com/rhythmbox-tray-icon/
2020-05-14
Cron.monthly om oude mail te verwideren:
/usr/bin/mutt -f /var/spool/mail/root -e "push D~d>1m<enter>qy<enter>"
2020-05-13
Oude webcams willen wel eens werken met
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so cheese
2020-05-12
Disable animations gnome desktop: maakt de zaak wat meer snappy:
https://www.fosslinux.com/4208/how-to-speed-up-applications-menu-in-ubuntu-18-04.htm
Carefully navigate to /org/gnome/desktop/interface/
and toggle the “Enable-Animations” option to OFF
2020-05-02
Updaten ubuntu naar nieuw release:
update-manager -d
2020-04-30
Irritante popups van packagekit met mededeling dat software
moet worden ge-update.
oplossing https://medium.com/opsops/how-to-disable-packagekit-f935207044c1
sudo systemctl stop packagekit
sudo systemctl mask packagekit
dpkg-divert --divert /etc/PackageKit/20packagekit.distrib --rename /etc/apt/apt.conf.d/20packagekit
2020-04-29
19.10 heeft last van freezes om de paar minuten of zo
https://askubuntu.com/questions/1185491/ubuntu-19-10-freezes-and-lags-reguarly
ge-upgrade naar kernel 5.5.19
van https://kernel.ubuntu.com/~kernel-ppa/mainline/
2020-04-07
css en javascript in drupal:
https://www.drupal.org/docs/8/theming/adding-stylesheets-css-and-javascript-js-to-a-drupal-8-theme
core/themes/bartik/bartik.info.yml
core/themes/bartik/bartik.libraries.yml
Let erop dat bij een upgrade je wijzigingen zijn verdwenen,
maak dus een copietje van deze files.
reset paswoord admin:
https://www.drupal.org/node/2778219
2020-04-06
umask van www-data:
in /etc/apache2/envvars:
umask 002
service apache2 restart
in cron.hourly gastpermissions kaltgestelt
adduser gast www-data
2020-03-31
cdrom speed:
https://michal.kosmulski.org/computing/tips/cd-rom-speed.html
eject -x N /dev/cdrom
N:
0: max speed
4: voor muziek
12: voor film
2020-03-28
disable mythtv fanart coverart:
http://lists.mythtv.org/pipermail/mythtv-users/2014-September/367334.html
cd /usr/bin
dpkg-divert --divert /usr/bin/mythmetadatalookup.orig --rename \
/usr/bin/mythmetadatalookup
ln -s /bin/true mythmetadatalookup
zie ook dpkg-divert --help
2020-03-18
Vaak moet er een ctrl-d worden gegeven bij boot, message op scherm:
Timed out waiting for device ....
Oplossing:
zie https://www.suse.com/support/kb/doc/?id=000018841
voeg
x-systemd.device-timeout=300s
toe aan de mount parameters in fstab, zowel voor swap als voor /homes
(10s werkt ook)
Kennelijk is de disk een beetje traag ...
Zie ook man systemd.mount
Oude oplossingen die niet werken:
extra boot parameters voor swap en /home (beide op sdb) in fstab:
noauto,x-systemd.automount
Er is nu geen swap na boot, zou vanzelvers moeten verschijnen
wanneer nodig.
En: mlocate zou nu /homes moeten skippen, omdat door deze
toevoeging, het filesysteem 'autofs' is.
Maar misschien doet-ie nog wel /home ?
Dat werkt dus niet. Heb de noauto,x-systemd.automount verwijderd van
/homes. De laatste 2 veranderd in 0. Lijkt te werken. zie
https://bbs.archlinux.org/viewtopic.php?id=213548
Dat werk ook niet. Heb alles weer in oorspronkelijke staat gebracht:
geen noauto,x-systemd.automount en 0->2
Boot nu met oudere kernel: 5.3.0-29-generic #31-Ubuntu SMP
Dit was wel even nodig:
update-initramfs -k all -u
in syslog:
Timed out waiting for device /dev/disk/by-uuid/0a504ec9-7c00-4456-98d9-e931953b4078.
Dependency failed for /dev/disk/by-uuid/0a504ec9-7c00-4456-98d9-e931953b4078.
Dependency failed for Swap.
Dus dat is niet goed, maar boot gaat gewoon door, zonder ^D verhaal.
Ook deze kernel geeft hetzelfde probleem.
Nog eentje terug:
4.19.0-041900rc6-generic #201809301631 SMP
2020-02-25
Over swap en zo:
https://haydenjames.io/linux-performance-almost-always-add-swap-space/
real time priority mythfrontend:
https://www.mythtv.org/wiki/Real-time_Scheduling_of_Video_Display :
in /etc/security/limits.conf :
* - rtprio 0
* - nice 0
@audio - rtprio 50
@audio - nice 0
2020-02-10
Gevecht tegen stutter op jukebox.
https://www.reddit.com/r/Ubuntu/comments/9jmrnz/why_is_guc_not_enabled_i915_driver_by_default_its/
/etc/modprobe.d/i915.conf :
options i915 enable_guc_loading=1 enable_guc_submission=1
maar dat werkt niet. wel werkt:
https://wiki.archlinux.org/index.php/Intel_graphics#Enable_GuC_/_HuC_firmware_loading
options i915 enable_guc=2 (zie modinfo i915)
cat /sys/kernel/debug/dri/0/i915_guc_load_status
laat zien:
GuC firmware: i915/kbl_guc_32.0.3.bin
status: fetch SUCCESS, load SUCCESS
version: wanted 32.0, found 32.0
header: offset 0, size 128
uCode: offset 128, size 176064
RSA: offset 176192, size 256
GuC status 0x800330ec:
Bootrom status = 0x76
uKernel status = 0x30
MIA Core status = 0x3
/etc/X11/xorg.conf.d/20-intel.conf :
#https://wiki.archlinux.org/index.php/Intel_graphics
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "NoAccel" "True"
Option "DRI" "False"
EndSection
https://askubuntu.com/questions/985372/choppy-videos-and-animations-since-17-10 :
sudo apt remove gnome-system-monitor
proberen: 2020-05-12
https://ubuntuforums.org/showthread.php?t=2339302
/etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0”
sudo update-grub
reboot
Zie ook voor meer kernel parameters:
https://linuxreviews.org/Linux_Kernel_5.5_Will_Not_Fix_The_Frequent_Intel_GPU_Hangs_In_Recent_Kernels
Overgeschakeld naar fvwm .
Divert van anacron, om daily jobs om 4:00 via cron.daily te draaien:
dpkg-divert --divert /usr/sbin/anacron.diverted --rename /usr/sbin/anacron
Een verhaal over tearing door mythfrontend zelf:
https://www.mythtv.org/wiki/Frame_display_timing
https://haydenjames.io/linux-performance-almost-always-add-swap-space/
Zie /etc/sysctl.d/60-swap.conf:
vm.swappiness=10
vm.vfs_cache_pressure=50
vm.dirty_background_ratio=1
vm.dirty_ratio=1
zie ook https://www.kernel.org/doc/Documentation/sysctl/vm.txt
/etc/mysql/mysql.conf.d/z.cnf:
[mysqld]
query_cache_size = 0
query_cache_type = 0
query_cache_limit = 4M
tmp_table_size = 64M
max_heap_table_size = 64M
join_buffer_size = 4M
innodb_buffer_pool_size = 2G
innodb_log_files_in_group = 10
innodb_buffer_pool_instances = 2
Over rotte i915 firmware:
https://linuxreviews.org/Linux_Kernel_5.5_Will_Not_Fix_The_Frequent_Intel_GPU_Hangs_In_Recent_Kernels
over intel i915:
https://wiki.archlinux.org/index.php/intel_graphics
Uiteindelijk:
Stutter: Nieuwe hdmi kabel, werkt!
Anti-tear: Mythfrontend: setup->video->playback->profile->opengl-high-quality, werkt! (https://forum.mythtv.org/viewtopic.php?t=148)
Session: fvwm (niet helemaal duidelijk of dat iets doet)
Voorkomen hoge cpu belasting in kijk-uren; Bovengenoemde aanpassingen in cron.anacron.
Niet duidelijk of dat een dooorslag gaf.
/usr/share/X11/xorg.conf.d/20-intel.conf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "DRI" "3"
Option "TearFree" "True"
EndSection
Nog uiteindelijker:
Installatie van MSI nvidia geforce gt710 kaart.
ubuntu-drivers install
installeert de 440 nvidia driver
In /etc/sysctl.d/60-swap.conf:
vm.swappiness=10
vm.vfs_cache_pressure=50
nieuwe hdmi kabel: was wellicht niet nodig
actie met betrekking tot verplaatsen van cron.daily
gehandhaafd, waarschijnlijk was dat niet nodig
In mythfrontend, setup, video etc:
decoder: vdpau
video renderer: vdpau
Nu wellicht overbodig, maar toch laten staan:
real time threads V
in /etc/security/limits.conf :
* - rtprio 0
* - nice 0
@audio - rtprio 50
@audio - nice 0
en server in groep audio gezet
2020-01-03
gpg: zie
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Step_by_Step_Guide/ch-gnupg.html
2019-11-29
mythtbackend lijdt nog steeds aan geheugenverlies
memory leak
Misschien te verhelpen met uitschakelen upnp: start
mythbackend met --noupnp
edit /etc/mythtv/additional.args:
ADDITIONAL_ARGS="--noupnp"
en restart mythbackend:
systemctl restart mythtv-backend.service
Geimplementeerd en kijken wat er gebeurt.
Een ander mogelijk is de EIT:
in mythtv-setup: videosources=>EPG source => perform eitscan
en
Channelinfo useonaitguide
2019-11-23
mythtv ppa:
https://launchpad.net/~mythbuntu/+archive/ubuntu/0.29
sudo add-apt-repository ppa:mythbuntu/0.29
sudo apt update
2019-11-09
samba NT_STATUS_LOGON_FAILURE
het blijkt dat samba een ander plekje heeft gevonden voor zijn
user databases: in var/lib
smbpasswd -a carla
repareert de zaak.
testen:
smclient //192.168.178.16/carla -U carla
2019-11-09
chromium zonder snap:
* download van packages.debian.org:
libvpx5
libjpeg62-turbo
chromium-sandbox
chromium
chromium-common
en installeer met apt install ./libvpx5*.deb .. etc ..
* of installeer van https://www.google.com/chrome/
installeert in /opt/google/chrome/google-chrome
let op correct invullen startup vragen
* of kijk op https://www.google.com/linuxrepositories/
2019-11-05
deb packages voor mythtv 0.29:
http://ppa.launchpad.net/mythbuntu/0.29/ubuntu/pool/main/m/mythtv/
de packages installeren in een sweep:
apt install ./libmyth ./libmyth-python ....
2019-11-05
ik had /home -> /homes/home
nu in fstab
/homes/home /home none bind
dat is eigenlijk wel mooier en is nodig voor snap
2019-11-05
packages on hold ivm mythtv:
libmyth
libmyth-python
libmythtv-perl
mythtv-backend
mythtv-common
mythtv-frontend
mythtv-transcode-utils
2019-11-05
dns en andere netwerkzaken:
nmcli device show enp2s0
2019-11-02
pre-sessie script:
./xsessionrc
2019-11-02
disable 'system error detected'
edit /etc/default/apport
enabled=0
2019-10-15
create csv in javascript:
https://stackoverflow.com/questions/14964035/how-to-export-javascript-array-info-to-csv-on-client-side
2019-10-14
veracrypt
https://kifarunix.com/how-to-install-and-use-veracrypt-to-encrypt-drives-on-ubuntu-18-04/
sudo add-apt-repository ppa:unit193/encryption
https://www.veracrypt.fr/en/Downloads.html
2019-09-22
phpsessionclean op jukebox gedisabled:
systemctl disable phpsessionclean.timer
systemctl disable phpsessionclean
zie: https://www.getpagespeed.com/server-setup/php/cleanup-php-sessions-like-a-pro
2019-09-09
php sessionclean garbage collector
https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=106664
2019-08-28
Veranderen x sessie
sudo update-alternatives --config x-session-manager
2019-08-10
r8169 problemen: wekt niet na suspend.
Oplossing:
https://askubuntu.com/questions/1029250/ubuntu-18-04-ethernet-disconnected-after-suspend
Had the same problems with my Dell Inspiron 15:
no wired network after reboot or suspend.
I seem to have fixed this by changing a setting in the BIOS:
Advanced -> Intel (R) Smart Connect Technology -> Disabled
(default is Enabled)
As a side effect, the menu item has disappeared, to appear
again after resetting all settings to default values.
2019-08-10
Activeren TP-LINK usb-wifi ID 2357:012d TP-Link
https://askubuntu.com/questions/1134101/tp-link-archer-t3u-not-working-in-ubuntu-18-04 :
sudo dkms remove rtl88x2bu/5.3.1 --all
sudo dkms remove 8822bu/1.1 --all
cd rtl8822bu && sudo make uninstall
git pull
cd ~
sudo dkms add ./rtl8822bu
sudo dkms install 8822bu/1.1
2019-07-19
change background of login screen
https://askubuntu.com/questions/797845/how-do-i-change-the-login-screen-in-ubuntu-16-04?noredirect=1&lq=1
$ sudo nano /usr/share/glib-2.0/schemas/10_unity_greeter_background.gschema.override
[com.canonical.unity-greeter]
draw-user-backgrounds=false
#background='/usr/share/backgrounds/Spring_by_Peter_Apas.jpg'
$ sudo glib-compile-schemas /usr/share/glib-2.0/schemas
$ sudo service lightdm restart
2019-07-07
systemctl
https://askubuntu.com/questions/659267/how-do-i-override-or-configure-systemd-services
2019-06-07
ffmpeg naar 720p, includief subtitles:
ffmpeg -i input.mkv \
-map 0:0? -map 0:1? -map 0:2? -map 0:3? -map 0:4? \
-vf scale=-2:720 -c:v libx264 -crf 18 -preset veryslow \
-c:a:0 copy -c:a:1 copy -c:s copy \
output.mkv
uit: https://askubuntu.com/questions/99643/how-can-i-convert-a-1080p-wmv-video-to-a-720p-video
scale=-2:720 : zorgt ervoor dat de width een veelvoud van 2 is en dat
de hoogte 720 is.
crf: heeft iets te maken met kwaliteit. 0-63, hoe hoger hoe slechter
-preset veryslow maakt hem erg langzaam, beter weglaten
in plaats van -crf:
-b:v 800k
geeft goed resultaat met 480p, ca 1Gbyte per hele film
ffmpeg en h264
https://trac.ffmpeg.org/wiki/Encode/H.264
compressie algemeen:
https://unix.stackexchange.com/questions/28803/how-can-i-reduce-a-videos-size-with-ffmpeg
2019-06-04
raspbian pbuilder:
https://wiki.ubuntu.com/PbuilderHowto
sudo apt-get install pbuilder debootstrap devscripts
sudo pbuilder create --distribution stretch \
--debootstrapopts "--keyring=/usr/share/keyrings/raspbian-archive-keyring.gpg"
build arm packages on amd64, zie https://jodal.no/2015/03/08/building-arm-debs-with-pbuilder/
2019-06-03
convert manpage to html
cat findent.1 | groff -mandoc -Thtml > manpage.html
2019-06-03
fstrim duurt veels te lang: 10 minuten na reboot, dit veroorzaakt
een maal per week een lange boot tijd.
Oplossing:
https://linoxide.com/linux-how-to/enable-disable-services-ubuntu-systemd-upstart/
echo manual >> /etc/init/fstrim.override
maar dat werkt niet, is voor upstart
Het volgende zou moeten werken:
sudo systemctl mask fstrim
check:
systemctl is-active fstrim
maak /etc/cron.weekly/fstrim:
#!/bin/sh
fstrim -Av
2019-06-02
realvnc gaat niet goed mee met desktopswitch. remedie:
zet in de server: Options->Expert->CaptureMethod op 1 (polling)
(default 0)
2019-06-02
raspberry vnc hdmi
https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
2019-05-30
mysql installatie op linux min 19.04
wat probleempjes. Zie /etc/mysql/debian.cnf voor user/pasword
Paswoord voor root zetten:
https://stackoverflow.com/questions/37879448/mysql-fails-on-mysql-error-1524-hy000-plugin-auth-socket-is-not-loaded
https://unix.stackexchange.com/questions/347871/how-to-change-root-password-for-mysql-and-phpmyadmin-mint-linux
2019-05-30
vpn en avahi gaan niet samen. Oplossing:
edit /etc/sysctl.conf
uncomment
net.ipv4.ip_forward=1
sudo service openvpn restart
2019-05-30
thunar open in terminal error:
/usr/lib/x86_64-linux-gnu/xfce4/exo-1/exo-helper-1
Oplossing: installeer libexo-1-0
2019-05-29
Lenovo ideapad wifi doet het niet.
https://askubuntu.com/questions/1071299/how-to-install-wi-fi-driver-for-realtek-rtl8821ce-on-ubuntu-18-04 :
sudo apt-get install --reinstall git dkms build-essential linux-headers-$(uname -r)
git clone https://github.com/tomaspinho/rtl8821ce
cd rtl8821ce
chmod +x dkms-install.sh
chmod +x dkms-remove.sh
sudo ./dkms-install.sh
blacklist van ideapad_laptop is noodzakelijk
Er wordt een paswoord gevraagd. Dit invullen en aanwenden
bij de volgende reboot: MOK etc.
2019-05-24
raspberry mysqk (mariadb) komt zonder paswoord voor root, en
alleen root kan inloggen als root.
Verhelpen:
https://circuits4you.com/2018/11/28/raspberry-pi-mariadb-mysql-password-login-as-root/
sudo systemctl stop mariadb
sudo mysqld_safe --skip-grant-tables &
# maar dit werkt beter:
sudo mysqld_safe &
sudo mysql -u root
GRANT ALL PRIVILEGES on *.* to 'root'@'localhost' IDENTIFIED BY '<password>';
FLUSH PRIVILEGES;
Ik kreeg de mysql_safe niet meer weg, dus een reboot en nu werkt het:
ingelogd als pi kan ik 'mysql -u root -p -h localhost' doen.
2019-05-20
slow boot: start job discard unused blocks /etc/fstab
gaat over fstrim, zie
https://askubuntu.com/questions/1034169/is-trim-enabled-on-my-ubuntu-18-04-installation
2019-05-16
mp4 afdraaien op firefox: groot probleem.
Vond een oplossing door met handbrake te converteren naar m4v
(optimized voor web). Mime type = video/mp4 (niet video/m4v)
2019-05-14
run tests na debian install:
in directory met een debian folder:
autopkgtest --output-dir /tmp/output-dir -B . -- null
2019-05-11
verander default filemanager:
wat is de default:
xdg-mime query default inode/directory
maak nautilus de default:
xdg-mime default nautilus.desktop inode/directory application/x-gnome-saved-search
2019-05-11
.local werkt niet, avahi, zie
https://askubuntu.com/questions/1068131/ubuntu-18-04-local-domain-dns-lookup-not-working
In order to make the system use your preferred DNS resolver instead
of localhost, you change the symlink to point to
/run/systemd/resolve/resolv.conf instead of
/run/systemd/resolve/stub-resolv.conf :
sudo rm -f /etc/resolv.conf
sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
Immediately after this, resolution of .local started working.
no need to reboot or restart any service.
Op piccolo: de originele link:
/etc/resolv.conf -> ../run/resolvconf/resolv.conf
2019-05-11
errors in phpmyadmin:
https://1netwiki.com/wiki/27
2019-05-07
verwijder snap
https://cialu.net/a-better-ubuntu-linux-without-the-crappy-snap/
$ sudo apt autoremove --purge snapd gnome-software-plugin-snap
$ rm -fr ~/snap
2019-03-10
click through:
https://stackoverflow.com/questions/16400937/click-through-transparent-xlib-windows
2019-03-07
electric fence:
export LD_PRELOAD=libefence.so.0.0
Niet gebruiken in normaal gebruik: gaat nogal eens mis
2019-12-01
automatisch executeren windows .exe files:
https://unix.stackexchange.com/questions/159193/unable-to-find-an-interpreter-when-running-a-windows-executable
sudo dpkg --add-architecture i386
sudo apt update
sudo apt install wine32
sudo apt install wine-binfmt binfmt-support
sudo update-binfmts --import /usr/share/binfmts/wine
sudo chmod a+r /usr/share/binfmts/wine
keep wineserver running:
wineserver -p<seconds> e.g:
wineserver -p10
compileren:
sudo apt install gcc-mingw-w64-i686-win32 gcc-mingw-w64-x86-64-win32
32bit:
i686-w64-mingw32-gcc etc
64bit:
x86_64-w64-mingw32-gcc etc
2018-11-22
na upgrade 18.04, apache serveert niet meer alle websites.
oplossing: in sites-available alle 'jukebox' vervangen door
'jukebox.local'
Blijf wel errormeldingen zien in errorlog, maar alles lijkt
normaal te werken.
2018-11-16
disable nouveau:
https://linuxconfig.org/how-to-disable-nouveau-nvidia-driver-on-ubuntu-18-04-bionic-beaver-linux
edit /etc/modprobe.d/blacklist-nouveau.conf:
blacklist nouveau
options nouveau modeset=0
update-initramfs -u -k all # is dat echt nodig? Ja!
reboot
2018-11-03
system monitor repareren:
https://askubuntu.com/questions/1045519/system-monitor-does-not-launch
snap remove gnome-system-monitor
sudo apt install gnome-system-monitor
2018-10-30
ubuntu 18.04: kan niet printen: Filter failed
https://askubuntu.com/questions/1080720/printer-filter-failed :
sudo rmdir /usr/share/ghostscript/9.25/iccprofiles # lege folder
sudo apt-get install --reinstall libgs9-common
Nu is iccprofiles een symlink naar ../../color/icc/ghostscript
----
No network icon:
De echte reden leek te zijn dat ik 2 wired netwerken had,
terwijl ik maar een netwerkstekker heb. De kennelijk niet
actieve netwerk verbinding verwijderd.
Vond ook nog dit:
https://askubuntu.com/questions/1056226/ubuntu-budgie-18-04-lts-system-tray-icons-not-all-showing#1056242
http://www.upubuntu.com/2013/08/how-to-fix-missing-not-showing-network.html :
sudo service network-manager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service network-manager start
sudo apt install libappindicator-dev
----
Activeer applications menu:
in gnome-tweak-tool: Top-Bar -> Activities Overview Hot Corner -> on
Extensions -> Applications menu -> on
---
hplip no system tray detected:
edit /etc/xdg/autostart/hplip-systray.desktop
verander
Exec=hp-systray -x
in
Exec=sh -c "sleep 5;hp-systray -x"
2018-10-21
equalizer:
https://askubuntu.com/questions/72679/is-there-any-sound-enhancers-equalizer
2018-09-26
drupal filedepot
download yui_2.7.0 van yui.github.io/yui2
Andere bevatten kennelijk een bug waardoor de layout
sterk wordt verstoord.
indien de devel versie wordt gebruikt:
diff --git a/ajaxserver.php b/ajaxserver.php
index 79057ed..2b82ad0 100755
--- a/ajaxserver.php
+++ b/ajaxserver.php
@@ -13,7 +13,9 @@ ob_start();
define('FILEDEPOT_TOKEN_FOLDERPERMS', 'filedepot_token_folderperms');
define('FILEDEPOT_TOKEN_FOLDERMGMT', 'filedepot_token_foldermgmt');
define('FILEDEPOT_TOKEN_FILEDETAILS', 'filedepot_token_filedetails');
+if (!defined('FILEDEPOT_TOKEN_LISTING')) {
define('FILEDEPOT_TOKEN_LISTING', 'filedepot_token_listing');
+}
Als er sql foutmeldingen komen ('duplicate ...'),
schoon de tabel
file_managed
een https site met de js:
https://ajax.googleapis.com/ajax/libs/yui/2.7.0/build/
http://entice.web.cern.ch/filedepot-and-alternatives
Niet getest door mij.
function filedepot_dispatcher($action) {
global $user;
2018-09-04
geeft guest session toegang tot modules:
creeer /etc/apparmor.d/abstractions/modules met als inhoud:
/homes/sara/ r,
/homes/sara/** rmixk,
/homes/home/willem/bitbucket/modules/ r,
/homes/home/willem/bitbucket/modules/** rmixk,
voeg regel toe aan /etc/apparmor.d/abstractions/lightdm :
#include <abstractions/modules>
en dan:
service apparmor restart
2018-08-18
drupal paswoord zetten,
https://www.werockyourweb.com/how-reset-drupal-admin-password/
in src/drupal-login/pw-reset.php
vul in users tabel de gegenereerde hash in
2018-08-12
gprof2dot.py: zie src/
valgrind --tool=callgrind src/findent < test/progfree.f
kcachegrind callgrind.out.nnnnnn
2019-08-06
installeren oude kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
2018-07-26
kiezen van video/audio track met ffmpeg:
https://superuser.com/questions/639402/convert-specific-video-and-audio-track-only-with-ffmpeg
Kies eerste video en tweede audio:
ffmpeg -i vidui.mkv -c:v libx264 -c:a ac3 -crf 20 -map 0:v:0 -map 0:a:1 vidui.mp4
2018-06-05
verwijderen alle programma gegevens uit mythtv (wordt weer hersteld
met mythfilldatabase):
mysql mythconverg -u mythtv -p
truncate table program;
quit;
2018-05-29
dput findent-2.8.2:
dput ftp-eu findent_2.8.2-1_amd64.changes
Checking signature on .changes
gpg: Signature made Tue 29 May 2018 02:39:43 PM CEST using RSA key ID 5C24AD2D
gpg: Good signature from "Willem Vermin <wvermin@gmail.com>"
Good signature on
/homes/home/willem/sourceforge/findent-code/trunk/upload/upload-2.8.2/findent_2.8.2-1_amd64.changes.
Checking signature on .dsc
gpg: Signature made Tue 29 May 2018 02:39:37 PM CEST using RSA key ID 5C24AD2D
gpg: Good signature from "Willem Vermin <wvermin@gmail.com>"
Good signature on
/homes/home/willem/sourceforge/findent-code/trunk/upload/upload-2.8.2/findent_2.8.2-1.dsc.
Uploading to ftp-eu (via ftp to ftp.eu.upload.debian.org):
Uploading findent_2.8.2-1.dsc: done.
Uploading findent_2.8.2.orig.tar.gz: done.
Uploading findent_2.8.2-1.debian.tar.xz: done.
Uploading findent-dbgsym_2.8.2-1_amd64.deb: done.
Uploading findent_2.8.2-1_amd64.buildinfo: done.
Uploading findent_2.8.2-1_amd64.deb: done.
Uploading findent_2.8.2-1_amd64.changes: done.
Successfully uploaded packages.
2018-05-26
concateneren van twee mp4's met dezelfde eigenschappen:
bg1.mp4 + bg2.mp4 -> bg.mp4
creeer file list.txt:
file /tmp/bg/bg1.mp4
file /tmp/bg/bg2.mp4
ffmpeg -f concat -safe 0 -i list.txt bg.mp4
2018-05-14
redirect /dev/tty to file:
script -q -c '/usr/local/tvgrab/tv_grab_nl.py --help' /dev/null > /tmp/a.txt
2018-05-02
audacity leest geen a.wav afkomstig van geluidsrecorder:
sox a.wav b.wav trim 0.01
of
ffmpeg -i a.wav -codec copy b.wav
of
vlc ( media->convert/save..)
2018-04-22
mysql performance
in /etc/mysql/conf.d/local.cnf :
slow_query_log = 1
git clone https://github.com/major/MySQLTuner-perl.git
cd MySQLTuner-perl
perl mysqltuner.pl
2018-04-18
mouse lag:
https://askubuntu.com/questions/808000/mouse-lag-in-ubuntu-gnome
maar files in modprobe.d en modules-load werken niet,
wel:
https://ubuntuforums.org/showthread.php?t=2144170
in /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash drm_kms_helper.poll=N"
2018-04-16
de bluetooth dongle 4.0 zorgt ervoor dat systeem na suspend
direct weer start.
Zie https://askubuntu.com/questions/252743/mouse-movement-wakes-computer-from-suspend-how-to-disable-this
In /etc/rc.local gezet:
echo XHC > /proc/acpi/wakeup
Nu komt systeem uit suspend na bedienen power schakelaar, niet
meer na usb gebeurtenis.
De namen in /proc/acpi/wakeup zijn moederbord-afhankelijk, schijnt.
Andere oplossing:
zet de volgende file in /lib/systemd/system-sleep (naam onbelangrijk,
ik nam "blue"):
#!/bin/sh
# wwvv
case "$1" in
pre)
logger "$0: rfkill block bluetooth"
rfkill block bluetooth
sleep 1
;;
post)
#logger "$0: rfkill unblock bluetooth"
#rfkill unblock bluetooth
logger "$0: service bluetooth restart"
service bluetooth restart
;;
esac
Wake up nu na toetsenbordberoering, maar niet na bluetooth muis beroering.
2018-04-16
logitech m720 bluetooth werkt in eerste instantie niet, ook
met 4.0 dongle: wel connect maar geen muisbeweging.
Oplossing: https://askubuntu.com/questions/741330/how-do-i-get-logitech-mx-anywhere-2-to-work-in-16-04-bluetooth-smart
Tijdens opvolgen recept deed-ie het opeens. Recept:
bluetoothctl
[bluetooth]# power off
[bluetooth]# power on
[bluetooth]# scan on
[bluetooth]# connect XX:XX:XX:XX:XX:XX
[Arc Touch Mouse SE]# trust
[Arc Touch Mouse SE]# connect XX:XX:XX:XX:XX:XX
[Arc Touch Mouse SE]# pair
[Arc Touch Mouse SE]# unblock
[Arc Touch Mouse SE]# power off
[bluetooth]# power on
2018-04-15
greek grieks
https://superuser.com/questions/28932/how-do-i-input-greek-characters-in-ubuntu
2018-03-19
trage shared virtualbox windows-guest.
Oplossen door het volgende in \windows\system32\drivers\etc\lmhosts
te zetten:
255.255.255.255 VBOXSVR #PRE
255.255.255.255 VBOXSRV #PRE
http://www.virtualbox.org/manual/ch12.html#idm11306
2018-03-16
Vervanging voor it's all text: textern
https://github.com/jlebon/textern
2018-03-05
subtitles .srt onderbrengen in mp4:
https://stackoverflow.com/questions/8672809/use-ffmpeg-to-add-text-subtitles
ffmpeg -i infile.mp4 -i infile.srt -c copy -c:s mov_text outfile.mp4
subtitles van ander formaat inbrengen:
ffmpeg -i infile.ts -i infile.srt -c:s mov_text outfile.mp4
ZIE OOK:
https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/subtitle_options
subtitles extraheren:
ffmpeg -i Movie.mkv -map 0:s:0 subs.srt
zie https://superuser.com/questions/583393/how-to-extract-subtitle-from-video-using-ffmpeg
subtitles verwijderen:
https://superuser.com/questions/98399/remove-embedded-subtitles-from-an-mkv-file
2018-03-02
Aanmaken debian findent-2.8.2
https://www.debian.org/doc/manuals/maint-guide/update.en.html
Als root:
pbuilder --update --configfile pbuilderrc.sid
pbuilder --login --configfile pbuilderrc.sid
export DEBEMAIL=wvermin@gmail.com
export DEBFULLNAME="Willem Vermin"
apt install vim less quilt devscripts
sed -i 's/^#//' /etc/apt/sources.list # oncomment 2de regel
cd
apt update
apt source findent
apt install wget
wget http://ratrabbit.nl/ratrabbit/system/files/findent/findent-2.8.2.tar.gz
cd findent-2.7.3
uupdate -v 2.8.2 ../findent-2.8.2.tar.gz
cd ../findent-2.8.2
rm -r debian
mv debian.upstream debian
dpkg-source --commit
while quilt push; do quilt refresh; done
dch
# * Bug fixes
* Added support for vim, gedit, emacs
* Added support for long flags
* Added support for correcting intentation errors (see: findentfix)
apt install debhelper autotools-dev equivs
mk-build-deps -i debian/control
dpkg-source --commit
while quilt push; do quilt refresh; done
dpkg-buildpackage -us -uc
# de resultaten staan in
/var/cache/pbuilder/build-amd64-sid/<process-number>/root
cd ..
lintian -i -I --show-overrides findent_2.8.2-1_amd64.changes
cd -
vim debian/control # varander Standards-Version in wat lintian
wil (3.9.8 -> 4.1.4)
dpkg-buildpackage -us -uc
Nu de files in
sudo cp -r /var/cache/pbuilder/build-amd64-sid/<process-number>/root /tmp/aap
sudo chown -R willem.willem /tmp/aap
cd /tmp/aap
debsign debsign findent_2.8.2-1_amd64.changes
dput -s ftp-eu findent_2.8.2-1_amd64.changes
(verwijder -s als je zeker bent dat het goed zal gaan)
2018-02-22
permission problemen met nfs gemounte filesystemen.
gast heeft mythtv als een vana zijn groepen, maar
kan "vaak" niet files toevoegen aan directories die
rwx zijn voor de groep, en waarvan de groep mythtv is.
Oplossing:
https://ubuntuforums.org/showthread.php?t=1915045
Remove the --manage-gids flag from mountd
in /etc/default/nfs-kernel-server
In jukebox's geval: comment uit de regel
RPCMOUNTDOPTS="--manage-gids"
2018-02-20
debian to rpm: sudo alien -r package.deb
rpm to debian: (sudo rpm --rebuilddb); sudo alien package.rpm
thumnails voor video werkt niet. Probleem met totem-video-thumbnailer.
Schakel over naar ffmpegthumbnailer:
https://bbs.archlinux.org/viewtopic.php?id=168626
mkdir -p ~/.local/share/thumbnailers
ln -s /usr/share/thumbnailers/ffmpegthumbnailer.thumbnailer \
~/.local/share/thumbnailers/totem.thumbnailer
of, systeem-wijd:
sudo su -
cd /usr/share/thumbnailers
cp totem.thumbnailer totem.thumbnailer.orig
cp ffmpegthumbnailer.thumbnailer totem.thumbnailer
2018-02-13
portrait videos van android worden 90 graden gedraaid vertoond
in mythtv. Oplossing:
ffmpeg -i input.mp4 -codec:a copy output.mp4
2018-01-24
Goede linux command line introductie:
http://linuxcommand.org/
2018-01-21
download mingw:
http://mingw.org/wiki/Getting_Started
gebruik toch maar liever cygwin ...
2018-01-15
wine loopt niet niet ulimit -s unlimited
2018-01-14
winehq install: https://wiki.winehq.org/Ubuntu
2018-01-11
kleintje problemen met 4.13 kernel:
garbled screen en geen shutdown.
Oplossing:
in /etc/default/grub:
GRUB_CMDLINE_LINUX="vga=784 acpi=force"
sudo update-grub
ps: acpi=force werkt voor reboot, niet voor powerdown
2018-01-06
mythfrontend crash bij bepaalde mkv files. Kennelijk ligt dat
aan de hoogte van de film:
ID_VIDEO_WIDTH=720
ID_VIDEO_HEIGHT=288
geeft problemen.
Oplossing:
ffmpeg -i input.mp4 -s 720*576 out.mkv
2018-01-03
pdf naar text:
pdftotext -layout file.pdf
2017-12-21
memory leak mythbackend, misschien op te lossen:
https://www.ibm.com/developerworks/community/blogs/kevgrig/entry/linux_native_memory_fragmentation_and_process_size_growth?lang=en
locatie systemd file: /lib/systemd/mythtv-backend.service
locatie environmentfile: /etc/mythtv/additional.args
MALLOC_MMAP_THRESHOLD_=8192
MALLOC_MMAP_MAX_=5000000
environment running process:
sudo cat /proc/<proc>/environment
2017-12-16
Met name in gvim, maar ook elders: characters vertonen
zich soms niet, komen weer terug na <esc> en zo.
Oplossing: https://askubuntu.com/questions/582980/missing-letters-in-menus-and-folder-names
In /etc/X11/xorg.conf,
maar wellicht beter in /usr/share/X11/xorg.conf.d/20-intel.conf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection
Zie ook man intel
2017-11-26
mythtv-0.29: geen verbinding meer van bijvoorbeeld piccolo:
"Waiting for database schema upgrade lock"
Wordt kennelijk veroorzaakt door
bind-address=::
in /etc/mysql/conf.d/mythtv.cnf
Oplossen door de file /etc/mysql/conf.d/zzwwvv.cnf toe te voegen:
[mysqld]
bind-address=*
2017-11-25
na boot-repair in windows:
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi
2017-11-05
what videodriver xserver am i using:
sudo lshw -C display # geeft de display kaarten
lspci -nnk | grep -i vga -A2 # geeft de gebruikte driver
size of packages
dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n
deactiveer zeitgeist
http://linuxaria.com/howto/how-to-remove-zeitgeist-in-ubuntu-and-why
zeitgeist-daemon --quit
sudo apt --purge autoremove activity-log-manager-common activity-log-manager-control-center \
zeitgeist zeitgeist-core zeitgeist-datahub
https://askubuntu.com/questions/45548/disabling-zeitgeist
sudo mv \
/etc/xdg/autostart/zeitgeist-datahub.desktop /etc/xdg/autostart/zeitgeist-datahub.desktop-inactive
rm ~/.local/share/recently-used.xbel
mkdir ~/.local/share/recently-used.xbel
rm -rf ~/.local/share/zeitgeist
forceer gebruik ppa (mythtv 0.28)
apt-cache policy mythtv-frontend
edit /etc/apt/preferences.d/mythtv-028:
Package: *
Pin: release o=LP-PPA-mythbuntu-0.28
Pin-Priority: 600
zie:
https://askubuntu.com/questions/96587/is-it-possible-to-only-allow-specific-packages-updates-from-a-ppa
plaats apps in gnome dash:
creeer file in ~/.local/share/applications , voorbeeld touchpad.desktop:
[Desktop Entry]
Encoding=UTF-8
Name=test
Exec=touchpad
Icon=input-touchpad
Type=Application
Categories=Utility;
Name[en_US]=touchpad
Deze wordt dan gevonden bij het tonen van alle apps: toevoegen
aan favorieten.
2017-10-30
jukebox: syslog flooded met:
kernel: [603067.645952] hpet1: lost 1 rtc interrupts
Oplossing?:
https://forum.openmediavault.org/index.php/Thread/18867-kernel-3724-848250-hpet1-lost-7161-rtc-interrupts/
vim /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="nosplash vga=773 hpet=disable"
^^^^^^^^^^^^
update-grub
reboot
zie ook:
https://software.intel.com/en-us/blogs/2013/06/20/eliminate-the-dreaded-clocksource-is-unstable-message-switch-to-tsc-for-a-stable
2017-10-14
https://portal.goosevpn.com/download.php ( eerst inloggen)
of https://portal.goosevpn.com/download.php#router (eerst inloggen)
klik "other"
klik 'servers'
Instellingen goosevpn:
authentication: password
username: alrac500@gmail.com
password: het lange paswoord van goosevpn
CA Certificate: /etc/certificaten/goosevpn.crt
Advanced:
Use custom gateway port: 443
Use LZO data compression
Use a TCP connection
Security:
Cipher: AES-256-CBC
HMAC Authentication: Default
Importeren van een .ovpn file kan ook: download hem van
https://portal.goosevpn.com/download.php (.ovpn files)
Je hebt nog wel de username en het lange paswoord nodig.
2017-09-09
op mijn keybordje: Sleep = button-suspend
Power = button-power
systemd upstart:
Instead of pm-suspend, systemd uses systemd-sleep.
Instead of running scripts in /etc/pm/sleep.d/ and
/usr/lib/pm-utils/sleep.d/ it runs scripts in
/lib/systemd/system-sleep/
commandline voor suspend:
systemctl suspend
2017-09-08
fortran indent
fprettify:
https://github.com/pseewald/fprettify
f90ppr:
http://fortranwiki.org/fortran/show/f90ppr
2017-09-07
exped ul 7 mw
https://www.soellaart.nl/synmat-ul-mw?gclid=EAIaIQobChMI05P4_LaS1gIVhLftCh0AJQW4EAQYASABEgKod_D_BwE
pumpbag
https://www.bever.nl/p/exped-schnozzel-pumpbag-pompzak-mbcdc32001.html?channable=e11841.MTU0NTY2XzU4MDY&colour=5806&gclid=EAIaIQobChMIsva_hriS1gIVjpztCh0r-g5YEAQYASABEgLbcvD_BwE
helinox
https://www.bever.nl/p/helinox-chair-one-stoel-MCAEC22001.html?colour=4143
2017-08-26
www.tweaking4all.nl/qnap/qnap-surveillance-video/
2017-08-25
werkt op willem-usb (pw = x) in combinaatie met sony video recorder.
zet de recorder aan als alle stekkers zijn aangesloten.
kijk even of de tijd wordt weergegeven, zo ja:
bedien knopje 'display'.
aansluiten videorecorder met composiet stekkers.
sudo apt install v4l-utils
v4l2-ctl -i 2 # zet video0 in composite mode
start recorder en
cat /dev/video0 > een-of-andere-file
met:
mpv een-of-andere-file
kun je zien of er wat gebeurt.
2017-08-20
definieer configuratie directory voor mythfrontend:
MYTHCONFDIR=$HOME/otherdir mythfrontend
2017-08-19
upgrade van ubuntu 16.04 naar 16.04-3:
sudo apt install --install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04
http://www.omgubuntu.co.uk/2017/08/ubuntu-16-04-3-lts-released
2017-08-09
forceer dvb kaart in dvb-c:
---
# /lib/systemd/system/cx23885.service:
[Unit]
Description=Start cx23885 module in dvb-c mode willem
Before=mythtv-backend.service
[Service]
User=root
ExecStart=/usr/local/bin/setcx23885
[Install]
WantedBy=multi-user.target
---
systemctl enable cx23885.service
/usr/local/bin/setcx23885:
---
#!/bin/bash
modprobe cx23885
for i in 0 1 2 3; do
dvb-fe-tool -a $i -d dvb-c
done
---
2017-08-05
kernel bakken:
zie ~/src/kernel/compile/howto
saa7164 sources in ~/driver-saa7164/saa7164.new
cp ~/driver-saa7164/saa7164.new/* linux-..../saa7164
Na installatie van .deb files: synaptic, vind de
geinstalleerde packages en markeer ze als locked.
dit werkt dan voor synaptic, maar voor apt:
Hold package in apt:
apt-mark hold <package-names>
Unhold:
apt-mark install <package-names>
zie https://askubuntu.com/questions/18654/how-to-prevent-updating-of-a-specific-package#18656
met dpkg:
set on hold:
echo "<package-name> hold" | sudo dpkg --set-selections
remove hold:
echo "<package-name> install" | sudo dpkg --set-selections
geholde packages:
dpkg --get-selections | grep -w hold
met apt:
sudo apt-mark hold <package-name>
sudo apt-mark unhold <package-name>
sudo apt-mark showhold
Vastzetten boot kernel:
edit /etc/default/grub
GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 4.10.0-30-generic"
of zoiets. De exacte bewoordingen in:
sudo grub-mkconfig|less
Daarna:
sudo update-grub
2017-07-21
network manager
edit connections:
nm-connection-editor
start connection:
nmcli con up id nl-10.goosevpn # naam van de connectie
down connection:
nmcli con down id nl-10.goosevpn # naam van de connectie
2017-07-19
unpack .deb file:
mkdir tmp
dpkg-deb -R package.deb tmp
2017-06-08
installeer atlas:
https://askubuntu.com/questions/472146/building-atlas-and-later-octave-w-atlas#473562
# apt-get source atlas
# apt-get build-dep atlas
# apt-get install devscripts
and type the following from the atlas source subdir:
# fakeroot debian/rules custom
it should produce a package called:
../libatlas3-base_*.deb
which is optimized for the architecture Atlas has been built on. Then install the package using dpkg -i.
2017-05-17
muisclick werkt niet altijd na resume, zie
https://askubuntu.com/questions/92218/how-to-execute-a-command-after-resume-from-suspend
/etc/pm/sleep.d/20-mouse
#!/bin/sh
case "$1" in
resume|thaw)
modprobe -r hid_generic
modprobe hid_generic
;;
esac
2017-04-23
power drain na shut down.
wakeon lan? zie http://www.hecticgeek.com/2012/09/disabling-wake-on-lan-in-ubuntu-might-save-a-tiny-bit-of-power-on-your-laptop/ :
sudo ethtool eth0 | grep Wake-on
Als Wake-on: g , dan wake-on is geactiveerd.
Deactiveren voor altijd:
cp /usr/lib/pm-utils/power.d/disable_wol /etc/pm/power.d
in /etc/pm/power.d/disable_wol, verander
enable) ethtool -s "${d##*/}" wol g>/dev/null 2>&1;;
in
enable) ethtool -s "${d##*/}" wol d>/dev/null 2>&1;;
2017-03-21
leuk: http://harmful.cat-v.org/
2017-03-17
anti tear (lijkt te werken !):
http://askubuntu.com/questions/667466/screen-tearing-in-ubuntu-with-nvidia-intel-graphics
Create /etc/X11/xorg.conf.d/20-intel.conf containing
(nu /usr/share/X11/xorg.conf.d/20-intel.conf )
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
2017-03-06
libdvdcss:
sudo apt install libdvd-pkg
sudo dpkg-reconfigure libdvd-pkg
2017-03-04
debug bash:
http://stackoverflow.com/questions/17804007/how-to-show-line-number-when-executing-bash-script
export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
bash -x script.sh
slow shutdown
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1457400
edit /etc/systemd/system.conf
add:
DefaultTimeoutStopSec=5s
Op MSI wind:
in /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="noapic irqpoll"
2017-03-02
debian keyring voor pbuilder:
https://wiki.ubuntu.com/PbuilderHowto
sudo apt-get install debian-archive-keyring
2017-02-24
disable mythtv metadatalookup
In mythtv-setup: general: unvink metadatajob (lookup)
Lijkt niet helemaal te werken, metadatalookup jobs
worden gegenereerd, maar niet gescheduled, zal vink
dus weer aanzetten.
in ~mythtv: directories banners, coverart, fanart
geleegd en naar root gechownd
Vervangen /usr/bin/mythmetadatalookup:
http://lists.mythtv.org/pipermail/mythtv-users/2014-September/367334.html
dpkg-divert --divert /usr/bin/mythmetadatalookup.orig --rename /usr/bin/mythmetadatalookup
ln -s /bin/true /usr/bin/mythmetadatalookup
In frontend: unvink
Setup -> Artwork and Data Sources ->
Artwork and Metadata Sources ->
Perform daily updates of recording artwork
2017-02-22
dkms: https://help.ubuntu.com/community/DKMS
2017-02-20
disk scheduler: /sys/block/sda/queue/scheduler
default is deadline
2017-02-18
optimaliseer mysql performance
/etc/mysql/conf.d/local.cnf:
[mysqld]
# https://haydenjames.io/mysql-query-cache-size-performance/
query_cache_type = 1
query_cache_size = 32M
query_cache_limit = 256K
query_cache_min_res_unit = 2k
join_buffer_size = 32M
query_cache_limit = 2M
2017-02-16
android aan ubunto mtfs
Uit http://askubuntu.com/questions/183482/getting-files-to-from-android-phone
Voldoende lijkt:
sudo apt-get install mtp-tools mtpfs
vim /etc/udev/rules.d/51-android.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="VENDORID", ATTR{idProduct}=="PRODUCTID", MODE="0666"
(vendorid en productid uit lsusb)
vim /etc/fuse.conf
uncomment
#user_allow_other
2017-02-15
Bert Wagendorp: Masser Brock
2017-02-04
ffmpeg video grab screen:
ffmpeg -f x11grab -r 25 -s 1280x720 -i :0.0+0,24 -c:v libx264 -preset ultrafast -crf 0 video.mkv
https://trac.ffmpeg.org/wiki/Encode/H.264
https://trac.ffmpeg.org/wiki/Capture/Desktop
2017-01-25
Over https, ssl certficaten:
https://www.karelgeenen.nl/10/website-via-https-ssl-uitgebreide-handleiding
https://www.digitalocean.com/community/tutorials/how-to-create-a-ssl-certificate-on-apache-for-ubuntu-14-04
2017-01-16
https://sites.google.com/site/computertip/veiligheid
https://sites.google.com/site/easylinuxtipsproject/security
linux beveiliging:
2016-12-23
kernel module maken:
https://www.kernel.org/doc/Documentation/kbuild/modules.txt
2016-12-16
pbuilder create werkt niet: na enkele minuten een probleem
met iets als dpkg-perl.
Opgelost door:
sudo debootstrap sid sid-root ftp://ftp.nl.debian.org/debian/
cd ..
sudo chroot sid-root
apt install build-essential
exit
cd sid-root
sudo tar zcvf base.tgz ./*
sudo chmod a+r base.tgz
sudo cp base.tgz /var/cache/pbuilder/
sudo pbuilder --update
2016-12-16
Bij verse installatie ubuntu 16.04 geen reactie op
rechtermuis in desktop. Oplossing:
gsettings set org.gnome.settings-daemon.plugins.background active true
gsettings set org.gnome.desktop.background show-desktop-icons true
2016-12-14
uitzetten unattended upgrades
http://ask.xmodulo.com/disable-automatic-updates-ubuntu.html
voeg de regel:
APT::Periodic::Unattended-Upgrade "0";
toe aan /etc/apt/apt.conf.d/10periodic
zie ook /usr/lib/apt/apt.systemd.daily
wifi na suspend:
https://ubuntuforums.org/showthread.php?t=2004690
edit /etc/pm/config.d/config
voeg toe:
SUSPEND_MODULES="wifidriver"
wifidriver: zie output van
sudo lshw -C network (driver=)
2016-11-29
Thunderbird gmail: copy naar Sent lukt niet:
edit->account settings->server settings->advanced
zet 'Maximum nuber of server connections to cache' op 1
default is 5
2016-11-20
mp4 streamend maken:
ffmpeg -i input.mp4 -c copy -movflags +faststart output.mp4
https://www.ffmpeg.org/ffmpeg-formats.html
mp4 genereren voor video die het ook in firefox doet:
ffmpeg -i input.mp4 -pix_fmt yuv420p output.mp4
in html5:
<video width="960" height="540" controls>
<source src="../../system/files/xsnow/xsnow1.mp4" type="video/mp4">
Sorry, your browser does not support the video tag, try to download the video
</video>
2016-11-10
https://gcc.gnu.org/onlinedocs/gfortran/GNU-Fortran-and-GCC.html
fortran file extensions suffixes:
fixed: .f .for .ftn .fpp .F .FOR .FTN .FPP
free: .f90 .f95 .f03 .f08 .F90 .F95 .F03 .F08
upercase en .fpp invoke preprocessor
2016-11-07
disable touchscreen
https://ubuntuforums.org/showthread.php?t=2209083&p=12945855
edit /usr/share/X11/xorg.conf.d/10-evdev.conf
in de sectie "InputClass" voeg toe:
Option "Ignore" "on"
2016-11-06
USB speed 1 2 3:
sudo lsusvb -vvv
kijk naar de bcdUSB regels
2016-11-04
vboxclient popup:
http://askubuntu.com/questions/656744/popup-during-boot-up-initializations-vboxclient-the-virtualbox-kernel-service
edit
/etc/X11/Xsession.d/98vboxadd-xclient
op de regel:
notify-send "VBoxClient: the VirtualBox kernel service is not running. Exiting."
vervang notify-send door echo
2016-10-31
banshee hangt bij rescan:
wordt wrsch veroorzaakt door daap extensie, zie
https://ubuntuforums.org/showthread.php?t=2321952
- banshee starten
- daap extensie uitvinken
- bansee verlaten
- ? rm ~/.config/bansee-1/banshee.db
2016-10-30
files uit git repo verwijderen:
https://rtyley.github.io/bfg-repo-cleaner/
2016-10-29
dns vaak eerste maal fout. Oplossing: voeg
nameserver 8.8.8.8
toe aan /etc/resolv.conf
geimplementeerd in /etc/resolvconf/resolv.conf.d/tail :
nameserver 8.8.8.8
dnsmasq lijkt het probleem te zijn:
apt --purge remove dnsmasq
Edit /etc/NetworkManager/NetworkManager.conf:
comment uit:
dns=dnsmasq
Of beter:
voeg toe /etc/NetworkManager/conf.d/dns-default.conf :
[main]
dns=default
service network-manager restart
Of: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/998712
echo "strict-order" > /etc/NetworkManager/dnsmasq.d/strict-order.conf
chmod a+r /etc/NetworkManager/dnsmasq.d/strict-order.conf
service network-manager stop
killall dnsmasq
service network-manager start
2016-10-24
nameserver instellen
http://unix.stackexchange.com/questions/128220/how-do-i-set-my-dns-when-resolv-conf-is-being-overwritten/163506#163506
sudo apt-get install dnsmasq
sudo vim /etc/dnsmasq.d/nameserver :
server=8.8.8.8
server=8.8.4.4
sudo service dnsmasq restart
2016-10-22
dconf editor laat niet altijd alle opties zien. Oplossing:
dconf write /org/gnome/desktop/wm/preferences/action-right-click-titlebar "'menu'"
of gebruik tweak tool
upgraden mysql na overgang 16.04:
mysql_upgrade --force -u root -p
phpmyadmin: geeft errors, klik op iets als upgrade of adapt ...
2016-10-21
buttons op windows:
dconf-editor -> org -> gnome -> desktop -> wm -> preferences
2016-10-12
python virtual environment
mkdir -p $HOME/python/virtual
cd $HOME/python/virtual
virtualenv xbeachmi
activeren:
. $HOME/python/virtual/xbeachbmi/bin/activate
export -f deactivate
2016-10-11
installatie geranium ubuntu-16.04.1-desktop-amd64.iso
op usb gezet met systemtools/administration/starup disk creator
booten met F12, kies: usb legacy
foutmelding: missing parameter in configuartion file. keyword: path
oplossing: https://askubuntu.com/questions/544414/missing-parameter-in-configuration-file-keyword-path :
tab live Enter
klik install ubuntu 16.04.1 LTS
check: download updates while installing Ubuntu
Install third-party software ...
kies: something else
Kies new partition table
klik +
size 100000 MB
primary
beginning of this space
ext4
mount point: /
klik +
size 40000 MB
logical
beginning of this space
Mount point: swap area
klik +
size rest (860205 MB)
Logical
Beginning of this space
Ext4
Mount point: /home
device for bootloader installation: staat op
/dev/sda ATA ST1000LM014-1EJ1(1.0T
klik Install Now
Where are you? Amsterdam
Keyboard layout: English(US) - English(US, with euro on 5)
Your name: willem
Your's computer name: geranium
In bios, zet boot list options op legacy, ondanks waarschuwing
cups web interface:
sudo usermod -aG lpadmin <user>
2016-10-08
Uitbrengen release findent:
- gofindent
- check versie src/version.h
- version=`./getversion`
- svn commit -m $version
- a=`pwd` && ./bootstrap && rm -rf /tmp/build && mkdir /tmp/build && cd /tmp/build && $a/configure --prefix=/tmp && make check
- controleer output
- gofindent
- ./maketar
- gofindent ; cd ../versions
- tar xf findent-$version.tgz
- cd findent-$version/bin
- test werking findent:
- ./findent -v
- ./findent.exe -v
- ./wfindent -v
- gofindent
- ./makezip
- cd ../versions
- cp findent-$version.zip ~/shared
- start vm windows xp, test zip file
- start vm debian-weezy 32 bit
- gofindent ; svn update ; version=`./getversion` ; ./makedeb
- cd ../debian/findent-$version-debian
- sudo dpkg -i findent_${version}_i386.deb
- test findent, wfindent:
- findent -v ; wfindent -v
- cd ..
- cp -r findent-$version-debian /media/sf-shared
- op piccolo:
- gofindent ; cd ../debian
- cp -r ~/shared/findent-$version-debian/*.deb .
- op geranium:
- start virtuele machine debian-whhezy-64bit
- gofindent ; svn update ; version=`./getversion` ; ./makedeb
- cd ../debian/findent-$version-debian
- sudo dpkg -i *.deb
- test findent, wfindent:
- findent -v ; wfindent -v
- cd ..
- cp -r findent-$version-debian /media/sf-shared
- op geranium:
- gofindent ; svn update ; version=`./getversion`
- test .deb package:
- cd ~/shared/findent-$version-debian
- sudo dpkg -i *.deb
- test findent:
- findent -v ; wfindent -v
- scp *.deb willem@piccolo.local:/tmp
- op piccolo:
- gofindent ; version=`./getversion`
- cd ../debian
- cp /tmp/findent_${version}_amd64.deb .
- transporteer naar sourceforge en ratrabbit:
- debian/findent_{version}_amd64.deb
- debian/findent_{version}_i386.deb
- versions/findent-$version.zip
- versions/findent-$version.tgz
- versions/README
- pas http://www.ratrabbit.nl/ratrabbit/content/findent/downloads
- aan aan de versie
- download van sourceforge en test
Nu nog naar github:
- cd /tmp
- svn export svn://svn.code.sf.net/p/findent/code/trunk findent-code
- cd findent-code/findent
- ./bootstrap
- cd /home/willem/github/findent
- 'cp' -r /tmp/findent-code/findent .
- git add findent
- git commit .
- git push
2016-09-24
pulseaudio client server. Gebruik van pavucontrol werkt niet goed.
padevchooser en pulsaudio system tray werken wel, maar het icon
wil niet altijd verschijnen in het panel....
Note: sinds enige tijd bestaat padevchooser niet meer.
Iets wat wel werkt is:
PULSE_SERVER=jukebox pax11publish -e
of
pax11publish -e -S jukebox
en terug:
pax11publish -e -r
zie ook man (1) pax11publish, opmerking over module-x11-publish
of:
xprop -root -f PULSE_SERVER 8s -set PULSE_SERVER tcp:jukebox
http://jonisalonen.com/2014/setting-x11-window-properties-with-xprop/
Het volgende in /etc/pulse/default.pa gezet:
## wwvv
##https://wiki.archlinux.org/index.php/PulseAudio/Examples#Selecting_the_Server
.ifexists module-native-protocol-tcp.so
load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1;192.168.0.0/24 auth-anonymous=1
.endif
.ifexists module-zeroconf-publish.so
load-module module-zeroconf-publish
.endif
.ifexists module-zeroconf-discover.so
load-module module-zeroconf-discover
.endif
## /wwvv
2016-08-22
geranium: verwijderd nvidia-352
2016-08-21
git en branches:
$git clone https://github.com/openearth/xbeach-mi
$cd xbeach-mi
$git branch
* master
$git branch -a
* master
remotes/origin/HEAD -> origin/master
remotes/origin/master
remotes/origin/mpi
$git checkout -b mpi origin/mpi
$git branch
master
* mpi
2016-07-25
corporate-clean
text color: corporateclean/colors/colors.css
text size: corporateclean/colors/style.css
2016-07-07
indent fortran met emacs:
http://www.fortran90.org/src/faq.html
emacs --batch filename.f90 -f mark-whole-buffer -f f90-indent-subprogram -f save-buffer
2016-06-06 mount --bind etc
in fstab:
/homes/home /home none bind
2016-05-23 enable hibernate in menu:
https://help.ubuntu.com/14.04/ubuntu-help/power-hibernate.html
geen loginprompt
2016-05-23 login na hibernate:
http://askubuntu.com/questions/180594/resume-to-login-screen-after-suspend
werkt niet altijd goed!
/etc/pm/sleep.d/00-login-screen.sh :
#!/bin/bash
case "$1" in
hibernate|suspend)
gdbus call --system --dest org.freedesktop.DisplayManager \
--object-path /org/freedesktop/DisplayManager/Seat0 \
--method org.freedesktop.DisplayManager.Seat.SwitchToGreeter
;;
esac
exit $?
2016-05-23 willem mag pm-suspend zonder paswoord:
als root:
visudo -f /etc/sudoers.d/power
willem ALL=(ALL) NOPASSWD: /usr/sbin/pm-hibernate, /usr/sbin/pm-suspend
hierna kan willem
sudo pm-suspend
doen zonder paswoord
2016-05-23 /etc/sudoers verkloot:
haal /etc/sudoers van backup en
pkexec visudo
en herstel de file
2016-05-19 genereer licencse file intel
https://registrationcenter.intel.com/regcenter/register.aspx
select gewenst product -> manage
-> activate serial number (mac eth0)
2016-05-19 fake time
voorbeeld:
faketime "2013-01-03 10:20:30" bash
zie: man faketime
ps: LD_PRELOAD .... FAKETIME="@2000-01-01 10:20:30" werkt niet
zoals beschreven in /usr/doc/libfaketime/README.gz
2016-04-27 svn server aanmaken
https://help.ubuntu.com/community/Subversion
voorbeeld:
addgroup --gid 3001 subversion
adduser www-data subversion
adduser willem subversion
mkdir /home/svn
cd /home/svn
mkdir myproject
svnadmin create /home/svn/myproject
cd /home/svn
sudo chown -R www-data:subversion myproject
sudo chmod -R g+rws myproject
2016-04-25 apps om te verwijderen uit ubuntu:
tracker
cd ~/.config/autostart
cp /etc/xdg/autostart/tracker-* .
Verander in de tracker-* files de regel:
X-GNOME-Autostart-enabled=true
in
X-GNOME-Autostart-enabled=false
logout & login
maar:
2019-05-09
https://wiki.ubuntu.com/Tracker
Globaal:
zet het volgende in /etc/xdg/autostart/trackerd.desktop
[Desktop Entry]
Encoding=UTF-8
Name=Tracker
Hidden=true
Locaal:
zet het vorige in ~/.config/autostart/trackerd-extract.desktop
2019-11-09:
systemctl --user mask tracker-store.service \
tracker-miner-fs.service tracker-miner-rss.service tracker-extract.service \
tracker-miner-apps.service tracker-writeback.service
tracker reset --hard
om te enabelen: gebruik unmask
https://www.linuxuprising.com/2019/07/how-to-completely-disable-tracker.html
2021-11-23
Zie https://www.linuxuprising.com/2019/07/how-to-completely-disable-tracker.html:
systemctl --user mask tracker-extract-3.service tracker-miner-fs-3.service tracker-miner-rss-3.service tracker-writeback-3.service tracker-xdg-portal-3.service tracker-miner-fs-control-3.service
tracker3 reset -s -r
reboot
2019-07-28:
https://gist.github.com/vancluever/d34b41eb77e6d077887c
tracker daemon -t
cd ~/.config/autostart
cp -v /etc/xdg/autostart/tracker-*.desktop ./
for FILE in tracker-*.desktop; do echo Hidden=true >> $FILE; done
rm -rf ~/.cache/tracker ~/.local/share/tracker
http://ubuntuforums.org/showthread.php?t=2000108 :
zeitgeist (unity zal niet goed meer werken!)
sudo apt-get remove zeitgeist zeitgeist-core zeitgeist-datahub python-zeitgeist \
rhythmbox-plugin-zeitgeist
geoclue
sudo apt-get remove geoclue geoclue-ubuntu-geoip geoip-database
whoopsie
sudo apt-get remove whoopsie
ntpd
/etc/ntp.conf :
verander
server 0.ubuntu.pool.ntp.org
server 1.ubuntu.pool.ntp.org
server 2.ubuntu.pool.ntp.org
server 3.ubuntu.pool.ntp.org
in:
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 3.pool.ntp.org
2016-04-21 disable login
voorbeeld:
sudo passwd -l mythtv
(zie ook man passwd)
Omgekeerd: passwd -u
Verwijder uit greeter:
edit /var/lib/AccountsService/users/mythtv :
[User]
XSession=ubuntu
SystemAccount=true
nb: niet-bestaande logins worden automatisch verwijderd
2016-04-20 waar is background picture
gconftool --get /desktop/gnome/background/picture_filename
2016-04-20 cups zie hp printer niet
https://wiki.ubuntu.com/DebuggingPrintingProblems
hp-makeuri 003:008 # getallen uit lsusb
en hij doet het.
Ook proberen:
sudo hp-setup
2016-04-17 install catalyst driver
http://wiki.cchtml.com/index.php/Ubuntu_Trusty_Installation_Guide#Installing_Proprietary_Drivers_a.k.a._Catalyst.2Ffglrx
2016-04-16 temp files van firefox naar memory
http://www.linux-magazine.com/Issues/2015/172/Tuning-Your-SSD/%28offset%29/3
In Firefox or Iceweasel, enter about:config in the address bar and confirm the prompt.
Now right-click anywhere on the list and create a new entry via the context menu (New | String).
Enter browser.cache.disk.parent_directory as the name. The content you need for the new entry is
/run/user/1000/firefox-cache. Change 1000 to the user ID, which the id -u command outputs on the
system. After you restart the browser, it will write its temporary data to RAM.
2016-04-13 concateneren videos:
avconv -i 'concat:file1.avi|file2.avi' out.{avi,mp4,ts, ...}
input mag geen mp4 zijn
ipv .avi wordt wel genoemd .ts (voor mpegts encoding)
mp3 en jpg naar mp4
avconv -loop 1 -i p.jpg -i m.mp3 -shortest out.{mp4,ts,avi,...}
ffmpeg -r 2 -i 20180205_131543_%3d.jpg trala_2.mp4
ffmpeg -pattern_type glob -i '*.jpg' movie.mp4
2016-04-02 boot repair
http://askubuntu.com/questions/226061/how-to-install-the-boot-repair-tool-in-an-ubuntu-live-disc
sudo add-apt-repository -y ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install -y boot-repair && boot-repair
2016-03-10 /usr/bin/xauth: timeout in locking authority file .Xauthority
login op systeem
rm .Xauthority*
touch .Xauthority
http://askubuntu.com/questions/165921/error-on-boot-12-04/166115#166115
2016-03-09 in verband met vlotte verwijdering oude files
op lisa:
tar --extract --touch --file prut.tgz
tar --create --auto-compress --file prut.bz2 prut
2016-03-04 console fade weg. Oplossen door in /etc/default/grub
toe te voegen:consoleblank=0 aan GRUB_CMDLINE_LINUX_DEFAULT=
bijvoorbeeld:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash consoleblank=0"
sudo update-grub
reboot
2016-03-04 doosje: lage resolutie na upgrade.
iets mis met fglrx.
Opgelost door alle fglrx packages te purgen, en daarna fglrx
te installeren.
zie ook: https://mwop.net/blog/2014-11-03-utopic-and-amd.html
http://askubuntu.com/questions/442851/how-can-i-get-my-monitors-maximum-resolution-without-the-proprietary-amd-graphi
geranium problemen met ethernet.
http://askubuntu.com/questions/62166/siocsifflags-operation-not-possible-due-to-rf-kill
sudo rfkill unlock all
reboot
;-)
I confirm this problem with the Asus X75VD laptop using rt2600pci
driver. None of the above suggestions helped me, but on the
French forum(1), there is a work-around that does work.
Simply suspend the session (close the lid) and reactivate it
and the wifi works.
valgrind --track-origins=yes --leak-check=full
geeft de oorzaak
git geen console color:
git config --global color.ui false
mpv geen console color:
mpv --no-msgcolor
Het ultieme ffmpeg verhaal:
http://blog.superuser.com/2012/02/24/ffmpeg-the-ultimate-video-and-audio-manipulation-tool/
Over codecs en containers:
http://superuser.com/questions/300897/what-is-a-codec-e-g-divx-and-how-does-it-differ-from-a-file-format-e-g-mp/300997#300997
transporteer ssh id pub naar ander systeem:
ssh-copy-id -i .ssh/id_rsa.pub gast@jukebox
convert pem to crt:
openssl x509 -outform der -in TERENA_SSL_CA_3.pem -out TERENA_SSL_CA_3.crt
zie ook http://stackoverflow.com/questions/13732826/convert-pem-to-crt-and-key
scan netwerk:
nmap -sn 192.168.178.0/24
set channel kanaal video (NPO1)
zie https://www.ziggo.nl/televisie/zenderoverzicht/
ivtv-tune -d /dev/video5 -c 22 -t europe-west
of
v4l2-ctl -d /dev/video5 --set-freq=599.250
foutje in openmpi met neighbor_alltoallw,
./ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr-interfaces.h.in
sdispls en rdispls moeten arrays zijn.
Performance: http://wiki.mikejung.biz/Ubuntu_Performance_Tuning
vim /etc/sysctl.conf
add:
vm.swappiness = 10
sysctl -p
sysctl -a | grep vm.swappiness
soms garbled windows met i915 driver. Niet zeer storend,
windows herstellen zich weer. Maar toch:
http://xpwithubuntu.blogspot.nl/2015/04/xubuntu-1410-and-intel-i915.html
1) Create a i915.conf file in /etc/modprobe.d with this line
options i915 enable_rc6=1 enable_fbc=1 lvds_downclock=1
2) create a xorg.conf in /etc/X11 with the settings below
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection
usb restart unlock:
http://billauer.co.il/blog/2013/02/usb-reset-ehci-uhci-linux/
er ontbreekt een test op al of niet bestaan van de files
zie zelfde artikel: shopt
probeer usb sponate stop te verhelpen:
http://www.ubuntugeek.com/how-to-fix-usb-stops-working-problem-in-ubuntu.html
gksudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX=”acpi=force irqpoll”
sudo update-grub
Xephyr :1 -query 127.0.0.1 -screen 1200x800 -keybd \
evdev,,device=/dev/dinovo,xkbrules=xorg,xkbmodel=evdev -mouse evdev,,device=/dev/dinovo
Xephyr :1 -query localhost -screen 1200x800 -keybd \
evdev,,device=/dev/keyb-at,xkbrules=xorg,xkbmodel=evdev -mouse evdev,,device=/dev/mouse-usb
-reset -terminate : stopt bij logout
evdev,,device=/dev/input/by-path/$1,xkbrules=xorg,xkbmodel=evdev,xkblayout=es")
mythfrontend -O ThemePainter=qt
mythfrontend -O ThemePainter=opengl
zie ook man kbd
sudo apt-get build-dep xserver-xephyr
sudo apt-get install build-essential devscripts
dget http://at.archive.ubuntu.com/ubuntu/pool/main/x/xorg-server/xorg-server_1.5.2-2ubuntu3.dsc
dpkg-source -x xorg-server_1.5.2-2ubuntu3.dsc
cd xorg-server-1.5.2/
debuild
cd ..
sudo dpkg -i xserver-xephyr_1.5.2-2ubuntu3_i386.deb
Xephyr :2 -host-cursor -screen 800x480x16 -dpi 96 -ac &
Xgl :1 -fullscreen -query 127.0.0.1 -accel glx:pbuffer -accel xv:pbuffer -display :0.1
sudo dpkg-reconfigure x11-common
I have add new input section in xorg.conf and defined /dev/input/event4
(remote control) using evdev,
I have set "Option SendCoreEvents Off" - after I added this to
ServerLayout, it stops send events
(which is the goal) but unfortunately LIRC stops working for all
applications that use it.
I need to somehow tell X not to use events from specific device but do
not block LIRC. It is possible?
myudevinfo /dev/input/event5
sd card http://ubuntuforums.org/showthread.php?t=1306792
sudo modprobe tifm_core
sudo modprobe tifm_sd
udevadm control --reload-rules
udevadm trigger
I have add new input section in xorg.conf and defined /dev/input/event4
(remote control) using evdev,
I have set "Option SendCoreEvents Off" - after I added this to
ServerLayout, it stops send events
(which is the goal) but unfortunately LIRC stops working for all
applications that use it.
I need to somehow tell X not to use events from specific device but do
not block LIRC. It is possible?
edid
http://linux.die.net/man/1/nvidia-xconfig
http://www.nvnews.net/vbulletin/showthread.php?t=120320
stop gdm
startx -- -logverbose 6
cp /var/log/Xorg.0.log ~
nvidia-xconfig -E Xorg.0.log
evdev kbd
cd /usr/lib/xorg/modules/input
mv evdev_drv.so evdev_drv.so.save
geen goed idee.
mythcommflag --getcutlist -c 25 -s 20100118215500
http://www.mythtv.org/pipermail/mythtv-users/2008-March/215237.html
EXPERIMENTALLY_ALLOW_PULSE_AUDIO=1 mythfrontend "$@" -O ThemePainter=qt
pacmd "load-module module-tunnel-sink server=jukebox"
pacmd "set-default-sink tunnel.jukebox"
of
pacmd "set-default-sink 1"
pacmd "set-default-sink 0"
pacmd "play-file /usr/share/sounds/purple/send.wav 1"
pacmd "play-file /usr/share/sounds/purple/send.wav tunnel.jukebox"
disable alsa voor pulseaudio
pacmd "unload-module 4" # 4 is de index van module-alsa-card
enable: killall pulseaudio
aplay -L
aplay -D front *wav
pulseaudio listen from line-in:
pactl load-module module-loopback latency_msec=1
uitzetten:
pactl unload-module module-loopback
2010-03-20
drupal, start hem: sudo /etc/init.d/apache2 restart
http://localhost/drupal6/install.php
in apache configuratie is en alias voor drupal6: /usr/share/drupal6
2010-04-04
drupal, op de hand geinstalleerd in /usr/local/drupal6
cd /usr/local/drupal6
ln -s drupal-6.16 default
in /etc/apache2/conf.d/mydrupal6.conf
Alias /mydrupal6 /home/mydrupal6/default
<Directory /home/mydrupal6/default>
Options +FollowSymLinks
AllowOverride All
order allow,deny
allow from all
</Directory>
aanmaken database:
mysqladmin create mydrupal6 -uroot -p
snellere mysql
http://2bits.com/articles/reduce-your-servers-resource-usage-moving-mysql-temporary-directory-ram-disk.html
In het kort:
gebruik tmpfs, er is al een /run/mysqld
/etc/mysql/conf.d/local.cnf:
[mysqld]
tmpdir = /run/mysqld
tunen mysql:
http://dev.mysql.com/doc/refman/5.0/en/server-parameters.html
Aanmaken user mydrupal6 in mysql-admin
In .htaccess:
RewriteBase /mydrupal6
drupal clean urls
enable userdir (apache2)
sudo a2enmod userdir
service apache2 restart
enable rewrite
zet allowoverwrite all in userdir.conf
in .htaccess:
rewritebase /~gast/
of
rewritebase /
2010-04-12
wrong length recordings, zie http://svn.mythtv.org/trac/ticket/7978
Herstellen met:
mythcommflag --rebuild --file 27_20100411213500.mpg
Heb ook gedraaid:
perl /usr/share/doc/mythtv-backend/contrib/maintenance/optimize_mythdb.pl
vinden van orphans:
perl /usr/share/doc/mythtv-backend/contrib/maintenance/myth.find_orphans.pl --dir=/home/mythtv/recordings
Met 0.25 bestaat dit niet meer, zie
http://www.mythtv.org/wiki/Find_orphans.py
Heb in src/mythtv een myth.find_orphans.py staan
ook in /usr/local/bin. Die doet het, aanroepen ingelogd
als mythtv
Repair mythtv database: http://www.mythtv.org/docs/mythtv-HOWTO-22.html
MySQL database is corrupt
If you have reason to believe that your MySQL database is corrupt, execute the following commands to attempt to repair it.
NOTE: Ensure that there are no programs accessing the database while you attempt to repair it.
Make sure that all backend and frontend programs have exited.
mysqlcheck -r -umythtv -p<password> mythconverg
2010-04-21
drupal php memory limiet is default 16M, zie /etc/php5/apache2/php.ini
Kan worden aangepast in drupal zelf:
sites/default/settings.php:
ini_set('memory_limit', '32M');
2010-05-22
ubuntu compile kernel
http://blog.avirtualhome.com/2010/04/16/compile-and-run-the-ubuntu-lucid-kernel-on-ubuntu-karmic/
2010-05-22
mythtv error melding op druk systeem:
MediaRenderer::HttpServer Create Error
Lijk het opgelost te hebben door
gast@jukebox: .mythtv-0.0/:=-> diff config.xml config.xml.bak
11d10
< <ServicePort>6574</ServicePort>
zie http://www.gossamer-threads.com/lists/mythtv/users/410089
2010-05-22
flicker screen op msi, zie https://bugs.launchpad.net/ubuntu/+source/hal-info/+bug/415023
Oplossing:
killall gnome-power-manager
beter: kernel parameter
nomodeset
2010-08-18
naam van core dump:
zie man core
cat core.%p > /proc/sys/kernel/core_pattern
of, maak een bestand /etc/sysctl.d/60-coredump.conf :
kernel.core_pattern = core-%p
zie: man core
activeer: sudo service procps restart
tracker index corrupt
http://ubuntuforums.org/showthread.php?t=1138029
tracker-processes -r
doc to pdf:
abiword --to=out.pdf in.doc
unoconv in.doc
dpkg-reconfigure gdm
You could try DEBUG_PULSE_AUDIO_ALSA_EMULATION=1. Seems this is what the environment variable is for 0.23
http://ubuntuforums.org/showthread.php?t=1465754
uitzetten system-ready roffel drum:
sudo rm /usr/share/sounds/ubuntu/stereo/system-ready.ogg
op 12.04 is dit een link naar dialog-question.ogg
disable start-up en login sound mint:
sudo mv /usr/share/sounds/LinuxMint/stereo/system-ready.ogg{,.old}
sudo mv /usr/share/sounds/LinuxMint/stereo/desktop-login.ogg{,.old}
sudo mv /usr/share/sounds/LinuxMint/stereo/desktop-logout.ogg{,.old}
2010-12-08
dvd's spelen niet op jukebox.
http://forum.videolan.org/viewtopic.php?f=13&t=77867
herinstalleren dvdnav?
http://forums.majorgeeks.com/showthread.php?t=218135 :
libdvdcss:
sudo /usr/share/doc/libdvdread4/install-css.sh
gdm vervangen door kdm:
sudo dpkg-reconfigure kdm
correcte arrow-up (geen printscreen print screen:
Xephyr -query 127.0.0.1 :2 -keybd ephyr,,,xkbmodel=evdev
unmutable:
sudo chattr +i ~/.recently-used.xbel # enable
sudo chattr -i ~/.recently-used.xbel # disable
adobe flash cookies verhinderen:
als root:
cd ~willem
rm -rf .adobe .macromedia
touch .adobe .macromedia
chmod a-rwx .adobe .macromedia
automatisch mounten usb: gconf-editor
/apps/nautilus/preferences/{media_automount,media_automount_open}
pulseaudio met xephyr
op primaire login: in pulseaudio preferences:
Network access: vink Make discoverable PulseAusio ....
Network Server: vink Enable network access to local ....
unvink Allow other machines on the LAN to discover ...
vink Don't require authentication
Op jukebox: primaire login is mietje. Het zaakje werkt pas na:
killall pulseaudio
door mietje.
Heb dit commando opgenomen in xephyr-start.real
Er gaat ook iets mis met de volume settings:
amixer -Dpulse set Master 100 on
is goed. 70% mute het geluid. Opgenomen in xephyr-start.
onder welke tty draait X:
ps -o tty h -C Xorg
startup applicaties starten niet:
kijk of je sessie gnome is, en niet failsafe gnome
backup mysql: automysqlbackup
mysqldump -u [username] -p [password] [databasename] > [backupfile.sql]
o [username] - this is your database username
o [password] - this is the password for your database
o [databasename] - the name of your database
o [backupfile.sql] - the file to which the backup should be written.
registreer php-cgi als exectueerder van .php:
http://alain.knaff.lu/howto/PhpSuexec/
http://www.kernel.org/doc/Documentation/binfmt_misc.txt
echo ':PHP:E::php::/usr/bin/php-cgi:' > /proc/sys/fs/binfmt_misc/register
Wordt geregeld in /etc/init.d/binfmt-support via:
cat /var/lib/binfmts/php
php
extension
0
php
/usr/bin/php-cgi
amarok mp3
http://www.blogcompiler.com/2010/08/04/amarok-flac-mp3-wma-codecs/
amarok pulseaudio
installeer phonon-backend-gstreamer en kies default in playback
mkl fftw3 in octave: http://software.intel.com/en-us/articles/using-intel-mkl-in-gnu-octave/
synchroniseren rsa key sleutel:
login op master
/opt/pam/bin/acetest
drupal image verwijderen: zie http://drupal.org/node/1116076
drupal max diepte menu: configure block
ugly fonts: /etc/fonts/local.conf http://forums.debian.net/viewtopic.php?f=6&t=48379
<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
<match target="font" >
<edit mode="assign" name="hinting" >
<bool>true</bool>
</edit>
</match>
<match target="font" >
<edit mode="assign" name="hintstyle" >
<const>hintmedium</const>
</edit>
</match>
<match target="font" >
<edit mode="assign" name="antialias" >
<bool>true</bool>
</edit>
</match>
</fontconfig>
unrar: unrar x -r -o+ ../sara.rar
restore mysql database acc_sara :
mysql -u root -p acc_sara < acc_sara_13-04-2011_11-05.sql
drupal content type upload van de pagina systems/shared/attachments:
admin->structure->content types->Documentatie pagina(manage fields)->
edit image->vul 'allowed file extensions' in
sudo sfill -fllzv .
alsa version: cat /proc/asound/version
alsa restart: sudo alsa force-reload
Inbelnummers telefoon:
http://www.inbellen.org/ Die zou het moeten doen!
06760 - 01234
Voer als gebruikersnaam ikwil@inbellen.org in.
Het wachtwoordveld mag leeg blijven
Buitenland:
Stel het nummer +31 20 7155593 in als inbelnummer.
Voer als gebruikersnaam buitenland@inbellen.org in.
Het wachtwoordveld mag leeg blijven
Bluetooth en mobieltje: http://ubuntuforums.org/showthread.php?t=1317203
sudo apt-get install blueman
Drupal table of contents: de hide/nohide toc verschijn na het
aanvinken van 'table of contents' in het modules menu, bij
input filters
openmpi checkpoint
mpiexec -am ft-enable-cr -n 2 ./a.out
openmpi btl tcp openib
http://www.open-mpi.org/faq/?category=tuning
mpirun --mca btl ^tcp,openib
time ( mencoder MVI_1821.AVI \
-oac copy \
-ovc lavc -lavcopts vbitrate=700:autoaspect \
-vf "crop=$cropflags",scale=-2:-1 \
-msglevel all=4 \
-of avi -ofps 25 -o n.avi >/dev/null 2>&1 )
time ( mencoder MVI_1821.AVI \
-oac copy \
-ovc lavc -lavcopts vbitrate=700:autoaspect=msmpeg4 \
-vf "crop=$cropflags",scale=-2:-1 \
-msglevel all=4 \
-of avi -ofps 25 -o o.avi >/dev/null 2>&1 )
mencoder lavc vs xvid: http://lists.mplayerhq.hu/pipermail/mplayer-users/2004-May/045672.html
dial up networking bluetooth
http://www.spiration.co.uk/post/1307/Ubuntu-Linux---Bluetooth-and-GPRS-dialup-connection
hcitool scan
sdptool browse 00:21:09:E1:5C:6C
mencoder increase volume
mencoder in.avi -noskip -mc 0 -oac mp3lame -lameopts vol=10 -ovc copy -o out.avi
glx intel
https://theiszm.wordpress.com/2010/06/27/glx-missing-on-display/
sudo apt-get purge nvidia*
sudo apt-get install --reinstall xserver-xorg-video-intel libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg
sudo update-alternatives --remove gl_conf /usr/lib/nvidia-current/ld.so.conf
xdmcp vnc xfs: http://homepage.ntlworld.com/daniel.rigal/xdmvnc.html
https://help.ubuntu.com/community/VNC
ssh -f -L 5900:localhost:5900 gast@jukebox \
x11vnc -safer -localhost -nopw -once -display :0 \
&& sleep 5 \
&& vinagre localhost
ssh doorloggen:
ssh -t -X willem@lisa.sara.nl ssh -X wheezy
ssh disable authenticity:
ssh -o StrictHostKeyChecking=no host
Failed to contact configuration server bij opstarten gvim:
sudo rm -rf ~/.dbus
http://ubuntuforums.org/showthread.php?t=789578&highlight=pulseaudio
mkdir ~/pulse-backup && cp -r ~/.pulse ~/.asound* /etc/asound.conf /etc/pulse -t ~/pulse-backup/
$ rm -r ~/.pulse ~/.asound*
$ sudo rm /etc/asound.conf
sudo apt-get install libasound2-plugins padevchooser libsdl1.2debian-pulseaudio
sudo apt-get remove --purge libflashsupport flashplugin-nonfree-extrasound
bootable usb from iso
usb-creator-gtk
unetbootin
gnome keyring voor subversion:
.subversion/config:
password-stores=gnome-keyring
De rest default
.subversion/servers:
2*: store-passwords = yes
of comment uit
2*: store-passwords = no
subversion tag branch
http://svnbook.red-bean.com/nightly/en/svn.branchmerge.tags.html
$ svn copy http://svn.example.com/repos/calc/trunk \
http://svn.example.com/repos/calc/tags/release-1.0 \
-m "Tagging the 1.0 release of the 'calc' project."
usb automount:
http://www.webupd8.org/2010/05/fix-usb-devices-automount-not-working.html
http://linux.derkeiler.com/Mailing-Lists/Ubuntu/2008-04/msg03145.html
ethtool -s eth0 speed 100 duplex half autoneg off
nfs: no_root_squash
async
pulseaudio naar server:
export PULSE_SERVER=jukebox
problemen hangende left-mouse kleintje
rmmod psmouse (hierdoor werkt rouchpad niet meer, maar externe muis wel)
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/41301
firefox pulseaudio:
in /etc/firefox/firefoxrc:
FIREFOX_DSP="esd"
citrix
zie https://help.ubuntu.com/community/CitrixICAClientHowTo
een script:
#!/bin/bash
echo "see https://help.ubuntu.com/community/CitrixICAClientHowTo"
sudo dpkg --add-architecture i386 || exit 1
sudo apt-get update || exit 1
sudo apt-get upgrade || exit 1
sudo dpkg -i icaclient_13.4.0.10109380_amd64.deb || exit 1
sudo apt-get -f install || exit 1
sudo ln -sf /usr/share/ca-certificates/mozilla/* /opt/Citrix/ICAClient/keystore/cacerts/ || exit 1
sudo c_rehash /opt/Citrix/ICAClient/keystore/cacerts/
sudo rm -f /usr/lib/mozilla/plugins/npwrapper.npica.so /usr/lib/firefox/plugins/npwrapper.npica.so || exit 1
sudo rm -f /usr/lib/mozilla/plugins/npica.so || exit 1
sudo ln -sf /opt/Citrix/ICAClient/npica.so /usr/lib/mozilla/plugins/npica.so || exit 1
sudo ln -sf /opt/Citrix/ICAClient/npica.so /usr/lib/firefox-addons/plugins/npica.so || exit 1
echo "see https://help.ubuntu.com/community/CitrixICAClientHowTo"
echo "see https://www.citrix.com/downloads/citrix-receiver/legacy-receiver-for-linux/"
echo "see https://www.citrix.com/downloads/citrix-receiver/"
echo "wellicht nog te draaien: /opt/Citrix/ICAClient/util/configmgr"
echo "Firefox: Add-ons -> Plugins -> Citrux receiver: always activate"
# einde script
http://askubuntu.com/questions/147156/dpkg-reports-error-on-package-icaclient :
Just install version 12.0 instead of 12.1.
It is (still) available on Citrix site
(http://www.citrix.com/site/SS/downloads/details.asp?downloadId=2316611&productId=1689163)
and works just fine.
Or you can extract the package:
dpkg -x icaclient_12.1.0_amd64.deb /some/folder
mkdir /some/folder/DEBIAN
dpkg -e icaclient_12.1.0_amd64.deb /some/folder/DEBIAN
vi /some/folder/DEBIAN/postinst
In line 2648, change the text between double quotes ("i[0-9]86") for "[0-9,x]86" an then run the following:
dpkg -b /some/folder
It will correct the bug in the postinst script that tries to figure out the architecture
of your processor.
The 'dpkg -b /some/folder' will then recompile (build) the package.
All you need now is to install the recompiled package, which will be named after
the folder you used to extract it.
I just don't know why Citrix haven't done it yet, for it is a relatively old bug,
and with a very simple solution.
If you are not interested in doing the dirty job, just download the version I
corrected from https://dl.dropbox.com/u/3207848/icaclient_12.1.0_amd64.deb.
Hope I helped!
font optimalisering:
https://wiki.archlinux.org/index.php/Font_Configuration
fonts vlc: qtconfig (system/preferences/qt 4 settings. gebruik niet gtk+
gui style)
fonts amarok: systemsettings (system/preferences/system settings)
caching only nameserver: installeer bind9 en zet
# zet in /etc/dhcp3/dhclient.conf
# prepend domain-name-servers 127.0.0.1;
/etc/bind/named.conf.options:
forwarders {
192.168.2.254;
};
timezone time zone zetten:
cp /usr/share/zoneinfo/Europe/Athens /etc/localtime
of
sudo dpkg-reconfigure tzdata
Fonts en acroread: vaak vreemde fontsubstitutie.
Oplossen door de fonts uit een windows installatie
(WINDOWS/Fonts) te copieren naar /usr/local/share/fonts.
(normaal is deze directory leeg.
De arial* en verda* fonts lijken genoeg te zijn.
Met meer fonts gaan er fontkeuzes in andere applicaties, zoals
thunderbird, niet goed.
OF:
installeer ttf-mscorefonts-installer
en als-tie het dan nog niet goed doet:
cp /usr/share/fonts/truetype/msttcorefonts/* /usr/local/share/fonts
OF:
installeer ttf-mscorefonts-installer
herinstalleer acroread
acroread-fonts heb ik ook geinstalleerd, maar dat lost het genoemde
probleem niet op
jerky firefox:
http://helgeklein.com/blog/2010/12/solved-firefox-freezes-every-10-seconds-scrolling-is-jumpy/ :
1. Delete sessionstore*.js every time the freezes reappear, as I did.
The easiest way to navigate to the profile folder containing
sessionstore.js is by clicking on Help -> Troubleshooting Information ->
Open Containing Folder.
2. Disable the session store altogether. This does not disable the history,
just the ability to restore the previous session after a restart of
the browser. To do so, open about:config and set
browser.sessionstore.max_tabs_undo and
browser.sessionstore.max_windows_undo to 0.
Er is geen sessionstore.js, maar 2 helpt misschien
http://forum.lowyat.net/topic/1131862
Type in "about:config" in Firefox (address bar) and enter
general.smoothScroll under filter.
Double click on general.smoothScroll to set it to true.
Or else just install add-on smoothwheel.
http://www.ghacks.net/2008/06/28/fix-choppy-scrolling-in-firefox/
All that needs to be done is to add a line of code to the Firefox
userContent.css in the chrome folder. Check the official Mozilla
website that explains how to find that folder in various operating systems.
Once located open the file in a text editor and paste the following lines
at the end of it. If you do not have a file that is named userContent.css
yet but one that is named userContent-example.css remove the -example part
of the file first and add the lines afterward. Firefox 3 has to be closed
for this.
/* Smooth Scrolling Workaround: Disable Fixed Background Images on Pages */
body {
background-attachment: scroll !important;
}
backgrount wallpaper cannot change:
The solution that worked for me, was to open dconf-editor,
and set the following to active:
org.gnome.settings-daemon.plugins.background.active
kernel module compileren:
http://www.cyberciti.biz/tips/compiling-linux-kernel-module.html
http://ubuntuforums.org/showthread.php?t=279628
atomic nfs:
mkdir, O_EXCL
http://www.mail-archive.com/freebsd-hackers@freebsd.org/msg20456.html
www.meccano.com
http://www.constructiespeelgoedwebshop.nl/eitech-shoppentotaal
boot foxconn van usb:
in setup, kies 'boot', harddisk order of zoiets.
Zorg dat de flashdisk bovenaan staat
libreoffice: http://www.huseyinkaya.nl/2011/01/27/vervang-openoffice-met-libreoffice-ubuntu/
sudo apt-get autoremove openoffice.org-*
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice
sudo apt-get install libreoffice-gnome
sudo apt-get install libreoffice-pdfimport
sudo apt-get install language-support-nl
sudo apt-get install language-support-en
sudo apt-get install language-support-fr
sudo apt-get install language-support-de
sudo apt-get install libhsqldb-java-gcj
sudo apt-get install libreoffice-help-en-gb
sudo apt-get install pstoedit
sudo apt-get install libreoffice-filter-binfilter
sudo apt-get install libreoffice-officebean
sudo apt-get install libmyodbc
sudo apt-get install libsqliteodbc tdsodbc mdbtools libmysql-java libpg-java
sudo apt-get install libjtds-java libreoffice-gcj libreoffice-report-builder
sudo apt-get install cli-uno-bridge
pulseaudio kwaliteit quality
http://blog.netflowdevelopments.com/2009/05/07/sound-quality-with-pulseaudio-finally-restored-no-more-slightly-grainy-music/
mv .pulse punt.pulse
mkdir .pulse
cp -v /etc/pulse/* .pulse
veel opmerkingen:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/301755
http://rightfootin.blogspot.com/2009/05/fixing-pulseaudio-stutters-pauses.html
http://r3dux.org/2009/04/how-to-fix-stuttering-sound-in-904-jaunty-jackalope/
http://www.kdenlive.org/forum/playback-pulseaudio-and-crackling-stuttering-sound
http://ubuntuforums.org/showthread.php?t=789578
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/477274 :
E-MU 0404 USB has a default sample rate of 48KHz,
while PulseAudio has a default of 44.1KHz.
Once I set the sample rate in /etc/pulse/daemon.conf, the crackling is gone.
https://wiki.archlinux.org/index.php/PulseAudio#Glitches.2C_skips_or_crackling :
The PulseAudio sound server uses a timer-based audio scheduling
instead of the traditional interrupt-driven approach.
Timer-based scheduling may expose issues in some ALSA drivers.
To turn timer-based scheduling off, replace the line:
load-module module-udev-detect
in /etc/pulse/default.pa by:
load-module module-udev-detect tsched=0
Then restart the PulseAudio server.
En dat loste het probleem op!
-> http://0pointer.de/blog/projects/pulse-glitch-free.html
firefox latest:
sudo add-apt-repository ppa:mozillateam/firefox-stable
http://ubuntuforums.org/showthread.php?t=1712247
Betere ethernet driver voor doosje, ook dkms handleiding:
maar het werkt niet!
http://djlab.com/2010/10/fixing-rtl8111-8168b-driver-debian-ubuntu/
deze misschien wel:
http://forum.ubuntuusers.de/topic/lan-karte-funktioniert-nicht/#post-3005217
burn dvd from iso:
growisofs -dvd-compat -Z /dev/hdd=/path/to/image.iso
play speel dvd:
gxine dvd:/volledig pad naar iso
gxine dvd://home/willem/geen-backup/dvd/slist+rata/slistrata.iso
mplayer [-mouse-movements] dvdnav:// -dvd-device path-to-iso
mex matlab openmp:
export OMP_WAIT_POLICY=PASSIVE
download jpg jpeg
wget --no-parent --wait=10 --random-wait --limit-rate=100K --recursive \
--accept=jpg,jpeg --no-directories http://somedomain/images/page1.html
moonlight silverlight
http://www.go-mono.com/moonlight/download.aspx
sudo zonder passwoord:
sudo visudo
verander
%admin ALL=(ALL) ALL
in
%admin ALL=(ALL) NOPASSWD:NOPASSWD:ALL
apt repair
http://brainstorm.ubuntu.com/idea/7770
sudo sh -c 'zcat /var/backups/dpkg.status.1.gz > /var/lib/dpkg/status'
http://ubuntuforums.org/showthread.php?t=1776763
software-center problemen opgelost met:
sudo chmod a+r /etc/dpkg/dpkg.cfg.d/multiarch
sudo chmod a+r /var/cache/apt-xapian-index/index.1/*
sudo chmod a+r /var/lib/apt-xapian-index/*
eduroam
Wireless Security: WPA & WPA2 Enterprise
Authentication: Protected EAP (PEAP)
Anonymous identity: <leeg laten>
CA Certificate: leeg
PEAP Version: Version 0 (of Automatic)
Inner Authentication: MSCHAPv2
User Name: willem@sara.nl
Password: ka paswoord
eduroam doet het niet op 13.04, 13.10, zie
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1104476
Oplossing: verwijder in
/etc/NetworkManager/system-connections/eduroam
de regel:
system-ca-certs=true
(of installeer een certificaat)
eduroam android
http://www.appbrain.com/app/eduroam-fixer/nl.luqq.eduroamfixer
http://www.linuxreaders.com/2011/03/09/android-access-internet-from-computer-via-usb/
http://www.mobile-stream.com/easytether/android.html
http://www.google.com/support/forum/p/android/thread?tid=6f1937313cfcfc4d&hl=en
http://blog.mycila.com/2010/06/reverse-usb-tethering-with-android-22.html
http://developer.android.com/guide/developing/tools/adb.html
http://www.codeproject.com/KB/android/UsbPortForwarding.aspx
-> geen oplossing maar veel klachten: http://code.google.com/p/android/issues/detail?id=15631
-> idem http://androidforums.com/application-requests/25748-app-enterprise-802-1x-wifi-connectivity.html#post1647700
Op wonderbare wijze doet hij het nu ???
gvim geen menubalk! oplossing:
rm ~/.gnome2/Vim
gvim WARNING **: Unable to register window with path
alias gvim='UBUNTU_MENUPROXY= gvim'
disable global menu
http://www.addictivetips.com/ubuntu-linux-tips/how-to-disable-global-menu-in-ubuntu-11-10-tip/ :
http://maketecheasier.com/remove-app-menu-in-ubuntu-oneiric/2011/10/14
sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt
In your Firefox, go to “Tools -> Add-ons -> Extensions”.
Disable the “Global Menu Bar Integration” extension (You can’t un-install it).
apc instellingen in /etc/php5/conf.d/apc.ini, zie
http://www.php.net/manual/en/apc.configuration.php
http://linux-software-news-tutorials.blogspot.com/2011/11/unity-how-to-clear-history-and-manage.html
Unity:
http://askubuntu.com/questions/35488/what-custom-launchers-and-unity-quicklists-are-available
prace wiki
https://prace-wiki.fz-juelich.de/bin/view/PRACE/WebHome
11.10 slow shutdown:
The report does mention an edit one can make to /etc/init/network-manager.conf, ie. add as shown
stop on runlevel [06]
Dat werkt.
https://bugs.launchpad.net/ubuntu/+source/netbase/+bug/903825
Ongewenste cookies van google:
http://stackoverflow.com/questions/6301114/how-pref-cookie-google-com-appears-in-firefox
publieke nameserver:
Google: 8.8.8.8
OpenDNS: 208.67.222.222
svn relocate:
svn --relocate switch old-url new-url
svn diff met vorige versie
svn diff -r PREV:COMMITTED params.F90
svn diff local met repository
svn diff -r HEAD params.F90
svn diff twee revisies:
svn diff -r 4421:4422 wave_directions.F90
acroread medibuntu
http://www.futuredesktop.org/
Thunderbird theme: nautipolis is ok.
installatie python2.7.2
./configure --enable-unicode=ucs4
import warnings
warnings.filterwarnings('error')
import numpy
custom willekeurige applicatie bij file:
http://ubuntuforums.org/showthread.php?t=1863021
mp4 voor android
http://emiliotrussardi.com/2011/03/05/create-internet-ready-videos-compatible-with-androidiphone/
http://youtubeclone.wordpress.com/2007/05/26/how-to-convertencode-files-to-flv-using-ffmpeg-php/
iconv -f ISO-8859-1 -t utf-8 tv_grab_nl_py.conf > utf8
fourier transforms
http://www.jjj.de/fft/fft-n-doc.txt
cmake
www.vtk.org/Wiki/CMake_FAQ
http://techtitbits.com/2010/04/get-rid-of-freeze-ups-during-disk-io-activity-in-ubuntu/
voortreffelijke unix introductie, alleen jammer van csh ...
http://www.ee.surrey.ac.uk/Teaching/Unix/unix3.html
vi tutorial:
http://bignosebird.com/docs/vi.shtml
bruikbare unix introductie:
http://www.doc.ic.ac.uk/~wjk/UnixIntro/
svn: Aborting commit: '/home/willem/src/throttle' remains in conflict
oplossing:
svn resolved throttle
mythtranscode: No more queue slots!
hangen ... ?
http://karuppuswamy.com/wordpress/2010/06/18/enter-password-to-unlock-your-keyring-prompt-in-ubuntu/
grub grub2
timeout zetten:
toevoegen aan /etc/grub.d/40_custom:
set timeout=3
#--- en dan update-grub ---
kernel parameter grub grub2
zie http://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter
vim /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash foo=bar"
sudo update-grub
chroot mount dev grub
http://karuppuswamy.com/wordpress/2010/06/02/how-to-chroot-to-ubuntu-using-live-cd-to-fix-grub-rescue-prompt/
https://help.ubuntu.com/community/LiveCdRecovery
mkdir sda1
mount /dev/sda1 sda1
mount --bind /dev sda1/dev
mount --bind /dev/pts sda1/dev/pts
mount --bind /proc sda1/proc
mount --bind /sys sda1/sys
chroot sda1 bash
repareren apt errors:
dpkg -i /var/cache/apt/archives/*.deb # dit duurt even ...
dpkg --configure -a
large grote disk 2 tbyte gparted
http://www.shuvoovuhs.com/linux/grub-installation-issue-with-2-tb-hdd-gpt-requires-bios-boot-partition/
initialiseren mythtv database
mysql -u root -p < /usr/share/mythtv/sql/mc.sql
zcat mythconverg_2012-03-30_02h30m.Friday.sql.gz | mysql -u root -p
experiabox vast ip adres voorbeeld jukebox
in experiabox (192.168.2.254): thuisnetwerk->apparaten
verwijder jukebox
Op jukebox /etc/network/interfaces
auto eth0
iface eth0 inet static
address 192.168.2.16
netmask 255.255.255.0
gateway 192.168.2.254
/etc/init.d/networking restart
Op experiabox: vindt apparaat met jukebox's mac adres
klik configureren
nieuwe naam: jukebox (was mac)
toepassen
torus, n-dim
elke node heeft n coordinaten: 0,0,0....,0 - a(0),a(1), ... a(n-1)
Buren van i(0), i(1) ... i(n-1) zijn:
i(0)+1, i(1), ... i(n-1)
i(0)-1, i(1), ... i(n-1)
i(0), i(1)+1, ..., i(n-1)
i(0), i(1)-1, ..., i(n-1)
...
i(0), i(1), i(2), ... , i(n-1)+1
i(0), i(1), i(2), ... , i(n-1)-1
+1 en -1: wrap around
dus 2*n pootjes per node.
ubuntu 12.04 shutdown: http://askubuntu.com/questions/125844/shutdown-does-not-power-off-computer
1. sudo gedit /etc/default/grub
2. Find where it says, GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
3. Change this to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"
4. sudo update-grub
-- werkt. wel met grub 1.xx in menu.lst uiteraard
langzame citrix: http://forums.citrix.com/thread.jspa?threadID=246296
ln -sf /dev/urandom /dev/random
Werkt! 2012-04-28
Thunderbird exchange
add-ons: 'exchange 2007/2010 ...' en lightning
cuda nvcc gcc: compatible only with gcc<= 4.4:
in de directory van nvcc:
ln -s /usr/bin/gcc-4.4 gcc
ln -s /usr/bin/g++-4.4 g++
samba nmbd wil niet starten
verander workgroup in /etc/samba/nmbd.conf
testparm -s --parameter-name='disable netbios' (gebruikt in
/etc/init/nmbd.conf) geeft exit code 1 als workgroup gelijk is
aan netbios name. Wat dat ook mag betekenen...
samba printen. Eeen heel gedoe, maar ook
sudo cupsctl --share-printers
sudo /usr/share/doc/libdvdread4/install-css.sh
allow multiple definitions in ld: -zmuldefs of --allow-multiple-definition:
gcc -Wl,--allow-multiple-definition hello.c a.c b.c
let op: dit werkt niet met ld.gold, wel met ld.bfd
voor een configure script:
export LDFLAGS='-Wl,--allow-multiple-definition'
java runtime options environment
export _JAVA_OPTIONS="-Xms256m -Xmx512m"
msi wind: in syslog: [sdb] Test WP failed, assume Write enabled
http://askubuntu.com/questions/132100/errors-in-dmesg-test-wp-failed-assume-write-enabled
cat <<eof > etc/modprobe.d/ums-realtek-usb.conf
# http://askubuntu.com/questions/132100/errors-in-dmesg-test-wp-failed-assume-write-enabled
ums-realtek ss_en=0
# to prevent [sdb] Test WP failed, assume Write Enabled in syslog
eof
1024x600 resolutie :
http://askubuntu.com/questions/163448/fixing-800x600-resolution-in-toshiba-nb510-gma-3650-with-vesa-driver
Firstly, Open terminal and type:
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
Followed by sudo apt-get update
And sudo apt-get install xserver-xorg-video-intel
This will install INTEL latest drivers.
Just reboot once installed and look for changes that have taken place.
If none, go to System Settings and see if you got the correct
display settings to change the resolution.
If this does not work then try this testing PPA repository:
Open terminal type in:
sudo add-apt-repository ppa:intel-gfx-testing/ppa
Followed by sudo apt-get update
Once you are done, reboot and try to change resolution you are looking for
ubuntu naar xubuntu:
http://askubuntu.com/questions/65861/how-to-i-change-from-ubuntu-to-xubuntu
sudo apt-get install xubuntu-desktop
Log out, log back in, selecting Xubuntu/XFCE as my interface
Chill out for a few days. See that things still work.
There will be too many applications (eg there will be both Gnome's
and XFCE's default applications available but you want to make
sure you'll have everything you need when you remove Gnome/Unity/Whatever.
Clean up.
sudo apt-get remove ubuntu-desktop
sudo apt-get autoremove # removes dependencies of ubuntu-desktop
ka windows share
server: ka-intern-cifs2
share: users$
domain: KA
fglrx driver amd radeon
http://wiki.cchtml.com/index.php/Main_Page
https://help.ubuntu.com/community/BinaryDriverHowto/ATI :
sudo apt-get install dh-make dh-modaliases execstack
sudo sh amd-driver-installer-12-6-x86.x86_64.run --buildpkg Ubuntu/precise
If it is required, a package manager window will open and install
some dependencies and after a while create the following four .deb packages:
fglrx_8.980-0ubuntu1_amd64.deb
fglrx-amdcccle_8.980-0ubuntu1_amd64.deb
fglrx-dev_8.980-0ubuntu1_amd64.deb
sudo dpkg -i *.deb
sudo aticonfig --initial
fglrxinfo
gksudo amdcccle
gnome classic ubuntu 12.04 panel
alt-rightclick om te verwijderen etc.
of super-alt-rightclick
resize repartition gparted
https://help.ubuntu.com/community/HowtoPartition
index flash flv:
flvlib
http://pypi.python.org/pypi/flvlib/0.1.5
flush pipe in shell:
man stdbuf
nvidia drivers: zie http://www.noobslab.com/2011/09/nvidia-drivers-for-ubuntu-1110-oneiric.html
sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current
realtek r8168 driver
http://ubuntuforums.org/showthread.php?t=1958899
gstreamer autoaudiosink pulsesink werkt niet op doosje, daarom geen
banshee, totem, ...
Oplossing:
gconf-editor
/system/gstreamer/0.10/default/{audiosink,chataudiosink,musicaudiosink} =
alsasink
ubuntu 12.04 disable screensaver:
http://www.liberiangeek.net/2012/04/disable-screensaver-black-screen-in-ubuntu-12-04-precise-pangolin/
gsettings set org.gnome.desktop.screensaver idle-activation-enabled false
fiets reparatie rem remmen los uithalen wiel etcetera
http://www.ehow.com/video_2363045_loosen-bicycle-brake.html
wdfs: https://live.gnome.org/SeanFritz/UbuntuGutsyTomboySync
wget http://noedler.de/projekte/wdfs/wdfs-1.4.2.tar.gz
ubuntu 12.04 unity full screen
http://www.thegoss.com.au/content/ubuntu-1204-precise-pangolin-mythtv
CompizConfig Settings Manager
Utilities > Workarounds > Legacy Fullscreen support
Uitschakelen ( disable ) system pop-ups apport:
http://www.webupd8.org/2012/06/how-to-get-rid-of-internal-system-error.html
gksu gedit /etc/default/apport
and change "enabled" from "1" to "0", then save the file.
sudo service apport stop
You can always re-enable it later on if you want, by changing
"enabled" from "0" back to "1", or you can enable Apport
temporarily, using the following command:
sudo service apport start force_start=1
Force fsck on reboot:
sudo touch /forcefsck
Garbled splash 12.04
Geen resultaat:
http://bioeng-student.blogspot.nl/2012/06/fix-to-grabled-display-on-booting.html
1)Edit: /etc/default/grub
Change:
#GRUB_CMDLINE_LINUX_DEFAULT="splash quiet"
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset"
2) Update GRUB by:
sudo update-grub
Niet geprobeerd:
http://ubuntuforums.org/showthread.php?t=1744888
gksudo gedit /etc/default/grub
and change this line:
#GRUB_GFXMODE=640x480
to this:
GRUB_GFXMODE=640x480
Then save and exit the document.
Then do:
sudo update-grub
onleesbaar unreadable consolefont: werkt op jukebox
https://bugs.launchpad.net/ubuntu/+source/console-setup/+bug/809579
in /etc/grub.d/10_linux
comment uit
cat << EOF
gfxmode \$linux_gfx_mode
EOF
tweak 12.04
http://helpdeskgeek.com/linux-tips/use-more-than-four-workspaces-in-ubuntu-12-04/
sudo apt-add-repository ppa:tualatrix/ppa
sudo apt-get update
sudo apt-get install ubuntu-tweak
mpi-3
non-blocking collectives
neighbourhood collectives
matched probe (ivm threaded MPI)
MPI Tool: internal state available
C Const correctness
Updated One sided
Shared memory ?
Noncollective communicator creation?
Nonblocking MPI_Comm_dup
Fortran interface improvement ?
vpn ubuntu 12.04
http://blog.403labs.com/post/22325731425/vpn-dns-resolving-woes-in-ubuntu-12-04
sudo nano /etc/avahi/avahi-daemon.conf
Change the following line:
#domain-name=local
to
domain-name=.alocal
Restart AVAHI:
sudo service avahi-daemon restart
mythtv keeps restarting
in mythfrontend:
[ "$RET" = "0" -o "$RET" = "1" -o "$RET" = "130" -o "$RET" = "254" ]
130 is door mij toegevoegd.
http://www.thepiratebay.isoke.nl/
icon toevoegen aan launcher panel:
http://www.geekyboy.com/archives/384
sudo apt-get install gnome-panel
gnome-desktop-item-edit ~/Desktop/ --create-new
klik het desktop ding, en meld aan launcher hem te houden. Als het ware.
http://www.techradar.com/news/software/applications/7-of-the-best-anti-virus-apps-for-linux-669087/8#articleContent
dell latitude broadcom bcm4313 slow wireless
sudo modprobe -r wl
sudo modprobe wl
nfs slow mount, verhelpen met
nfsvers=3
in fstab
mythtv ppa repository
sudo apt-add-repository ppa:mythbuntu/0.25
vermijden riff chunks in avi:
mencoder -noodml ....
encryption key
ecryptfs-unwrap-passphrase
printer instellen
system-config-printer
device uri smb://KA.print.ka.sara.nl/Xerox
5 trays
Stevens http://www.kohala.com/start/unpv12e/unpv12e.tar.gz
cgi-bin tutorial http://www.cs.tut.fi/~jkorpela/forms/cgic.html
curl tutorial http://curl.haxx.se/libcurl/
cgic tutorial: http://oreilly.com/openbook/cgi/ch01_06.html
http://www.boutell.com/cgic/#index
cgi specs: http://www.ietf.org/rfc/rfc3875
repair reparatie rotte apt database:
/usr/share/debconf/fix_db.pl
mysql ext4 performance
http://www.gossamer-threads.com/lists/mythtv/users/414796 :
mount with barrier=0
http://blog.smartlogicsolutions.com/2009/06/04/mount-options-to-improve-ext4-file-system-performance/ :
RUN: sudo tune2fs -o journal_data_writeback /dev/sxyz
noatime,data=writeback,barrier=0,nobh,errors=remount-ro
NB: voor data=writeback is de tune2fs noodzakelijk, anders geen boot
kan ook met een kernel parameter, zie man mount
gvim edit existing foreground focus
- cp /usr/share/vim/vim73/macros/editexisting.vim .vim/plugin
- in compizconfig: general -> general options -> focus & raise behaviour -> focus -revention level -> off (was low)
r8169 nfs : http://forums.fedoraforum.org/showthread.php?t=250807
A bit of googling revealed that this has been a known issue
with the r8169 driver for several years.
The device will randomly fail autonegotiation and refuse to
come up, sometimes after weeks of working fine.
The fix is to use ethtool to disable autonegotiation
sometime between loading the driver module and when
Network Manager tries to bring it up. I did this by adding
the new file /etc/modprobe.d/r8169.conf with the following:
# turn off autonegotiation on the r8169 ethernet driver
install r8169 /sbin/modprobe --ignore-install r8169 && /sbin/ethtool -s eth0 autoneg off
maar... dit heeft tot gevolg dat ethernet op 10Mbit draait.
Aanpassing aan het begin van /etc/network/if-up.d:
IF_ETHERNET_AUTONEG=off
doet het beter.
matlab serialize
http://stackoverflow.com/questions/4807035/is-it-possible-to-intercept-a-matlab-save-bytestream
mysql set root password
oud:
/etc/init.d/mysql stop
new:
systemctl stop mysql
mkdir /var/run/mysqld
chown mysql /var/run/mysqld
mysqld_safe --skip-grant-tables &
mysql -u root
use mysql
# oud:
#update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
update user set authentication_string=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
flush privileges;
quit
oud:
/etc/init.d/mysql stop
/etc/init.d/mysql start
nieuw:
killall mysqld
killall mysqld_safe
# check of mysql nu dood is:
ps -ef | grep mysqld
systemctl start mysql
mysql grant user access to database
grant all privileges on proeftuin.* to gast@localhost;
grant all privileges on proeftuin.* to 'gast'@'%';
flush privileges;
Het lijkt erop dat dit niet met phpmyadmin kan worden gedaan.
acread default:
in /etc/gnome/defaults.list:
application/pdf=acroread.desktop (not evince)
install maclaws aosp
http://www.technobuzzing.com/2013/01/how-to-install-aosp-ics-beta-2-on-samsung-galaxy-ace-by-maclaw.html
copy rom full_gio-ota-eng.rc3.zip naar sdcard
uitzetten en boot recovery: tegelijk home en power
Now we Need to Wipe Data/ Factory Reset our Phone by Selecting the Option and then Select Yes.
Now we need to Wipe Cache Partition by Selecting the Option and then Select Yes
Now we need to Go to Advanced and then Select Wipe Dalvik cache and select Yes *** ik zie geen advanced
Now we need to Install the ROM by selecting the Option and then Select the ROM file. ******** Ik zie de rom file niet.
mic xeon phi programming
http://www.drdobbs.com/parallel/programming-intels-xeon-phi-a-jumpstart/240144160?pgno=1
vpn: fortisclient server: vpn.surfsara.nl poort: 10443 pw: rsa token
pvfs orangefs romio
ssh zonder greeter:
ssh -o Loglevel=Error ....
edit main menu surfsara sara website
structure -> menus -> main menu: list links; add link
- even stilstaan bij Peter Muller
- eerste aanleiding: uitnodiging om lid te worden
club 51 was stervende, dan hebben ze me nodig
- Mensen lopen achter hun hormonen aan
- Hoge hakken korte rokjes: verstoort balans
- Oplossing: geen gemengde club
- Respect voor het feit dat er andere meningen bestaan
- Aardig om te zien dat je niet de enige gestoorde bent
- Voor de vrouwen prettig: een vrije avond
malbolge sherlock holmes elementary programmeertaal
mythtv server
http://www.mythtv.org/wiki/Hauppauge_PVR-350
GUI width (px): 632
GUI height (px): 544
GUI X offset: 55
Mythfrontend: Utilities/Setup -> Setup -> TV Settings -> Playback:
Vertical over/underscan percentage: 8
Horizontal over/underscan percentage: 8
GUI Y offset: 20
You can increase the IVTV buffers by adding the following line to /etc/mythtv/modules/ivtv:
options ivtv yuv_buffers=32 mpg_buffers=16 vbi_buffers=16 pcm_buffers=16 dec_osd_buffers=2
Echter, dit is een oude regel, modinfo ivtv vertelt dat je moet doen:
options ivtv enc_mpg_buffers=16 enc_yuv_buffers=20 enc_pcm_buffers=640 debug=3
Ik heb twee Hauppage 500 kaarten, mogelijk gezien als 4 pvr 150 kaarten
pannekoeken 't Hoes van Hol-lan, Oud Aalden 11, Aalden, www.pannenkoek.nl
check md5sums debian installatie:
apt-cache clean
debsums_init
debsums -s
vpn command line
http://askubuntu.com/questions/57339/connect-disconnect-from-vpn-from-the-command-line
sudo nmcli con up id kantoor
vpn settings
type: pptp
vpn: gateway: access.ka.sara.nl
user name: willem
paswoord: ka paswoord
nt domain: KA
ADvanced:
alleen MSCHAPv2 aanvinken
V use point-to-pointe encryption (MPPE)
Security: all available
V allow stateful encryption
V allow BSD data compression
V allow Deflate data compression
O use tcp header compression
V send PPP echo packets
ipv4 settings
method: automatic (vpn)
V available to all users
routes...
V use this connection only for resources on its network
find . -iname '*.jpg' -o -iname '*.jpeg' | shuf | feh -Z -D 5 -Y -g 1920x1080 -B black --title %f -f -
of:
feh -rzFYZ -D 3 /data/gast/fotos
vga modes
Colour depth 640x480 800x600 1024x768 1280x1024 1400x1050 1600x1200
8 (256) 769 771 773 775
15 (32K) 784 787 790 793
16 (65K) 785 788 791 794 834 884
24 (16M) 786 789 792 795
jukebox: 773
box: 771
doosje: 771
kleintje: 784
in /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="splash vga=771"
en dan:
sudo update-grub
double precision, promoot constants naar real*8:
ifort -r8
gfortran -fdefault-real-8
openvpn pptp
https://help.ubuntu.com/lts/serverguide/openvpn.html
http://superuser.com/questions/376470/how-to-reinstall-grub2-efi
googleearth
installeer make-googleearth-package
make-googleearth-package
sudo dpkg -i googleearth_.........deb
sudo rm /usr/lib/googleearth/libcurl.so.4 # om foutmelding
'invalid http request' te verhelpen
mpi-io test http://institute.lanl.gov/data/software/#mpi-io
dvdrip dvd rip
acidrip
xvidenc
ghb (handbrake)
HandBrakeCLI
newgrp in shell script
sg group -c command
MTP:
http://forum.xda-developers.com/showthread.php?t=2223401
mtp-detect | grep idVendor
mtp-detect | grep idProduct
jukebox nvidia:
nvidia-173 nvidia-common nvidia-settings
smbclient //192.168.2.16/carla -Ucarla
iphone fotos naar normale grootte brengen:
mogrify -scale 30% -quality 92 *
of
mogrify -scale 1024x1024 -quality 92 *
unity flashing process started tkinter
root.wm_client("whatever")
export MALLOC_CHECK_=1
locales LC_TIME
man locale-gen
http://ccollins.wordpress.com/2009/01/06/how-to-change-date-formats-on-ubuntu/
locale-gen nl
gnome-language-selector
eenvoudiger: system settings -> language support
Denmark is ok voor formats.
Alle locales installeren:
sudo apt install locales-all
sudo dpkg-reconfigure locales
sudo locale-gen
Xeonphi
module load intelcs
MIC_OMP_NUM_THREADS
MIC_ENV_PREFIX=MIC
H_TIME=2
H_TRACE=2
KMP_PLACE_THREADS
calibre not recognised as an app for epub by nautilus.
Edit the file /usr/share/applications/calibre.desktop.
Change
Exec=calibre
To be
Exec=’/usr/bin/calibre’ %f
and save.
Now nautilus should give you the option of selecting calibre from
the list of applications. Right click on a .mobi or .epub file
and select properties. Select the “Open with” tab and select the
calibre application and click either “add” or “set as default”.
www.random.org
http://goparallel.sourceforge.net/under-the-hood-random-number-generators-in-parallel-processing/
Who Is Killing the Great Chefs of Europe?
loodgietersartikelen warmteservice
unity launcher application:
voorbeeld:
#!/usr/bin/env xdg-open
[Desktop Entry]
Version=1.0
Name=loginchooser
Exec=loginchooser
Terminal=false
Icon=face-cool
Type=Application
sleep deze naar de launcher.
php errors on/off
in /etc/php5/apache2/php.ini
display_errors = On
display_errors = Off
ubunto cdrom device:
sudo lshw -C disk
font problemen xfig:
LANG=C xfig
printen op sara:
device uri: ipp://145.100.22.48
of ipp://kleurdoos.sara.nl
ppd file downloaden van xerox, type 9302. Hij staat
in $HOME/ppds
of pin-printen:
kies windows smb printer
device uri: smb://KA/print.ka.sara.nl/big-momma
authenticatie: KA\willem en KA-paswoord
pyqtgraph:
packages pyqtgraph python-opengl
ssd of hdd:
cat /sys/block/sda/queue/rotational
1 -> hdd
0 -> sdd
panel reset:
gconftool --recursive-unset /apps/panel
mint: gsettings reset-recursively org.cinnamon
create dvd from video_ts:
http://ubuntuforums.org/showthread.php?t=1701026
If you want to do the job from command line you need your VIDEO_TS directory and an
empty AUDIO_TS directory inside a folder (named "DVD" or similar).
Then use command
genisoimage -dvd-video -v -o DVD.iso DVD
android settings sara email
willem@sara.nl
domain\username \willem@sara.nl
server webmail.sara.nl
password: ka paswoord
imce: directory onder sites/default/files
fonts
plaats folder met ttf fonts in /usr/share/fonts/truetype
(let op permissies)
sudo fc-cache -f -v
fontforge asenine bold
weight: 12 em scale Y: 103% Transworm X too: uit
forward email to smtp server, zie src/sendmail-smarthost
ubuntu-configure-sendmail-with-gmail
https://gist.github.com/sshtmc/3952294
drupal aggregration
http://www.wunderkraut.com/blog/using-aggregation-in-views/2011-12-10
mount android
http://www.webupd8.org/2012/12/how-to-mount-android-40-ubuntu-go-mtpfs.html
android smartphone location aware
android smartphone lokatie bewust
https://play.google.com/store/apps/details?id=com.kebab.Llama&hl=en
ubuntu windows 8
http://binarybyte.blogspot.nl/2013/08/installing-ubuntu-along-with-windows-8.html#more
http://ubuntuforums.org/showthread.php?t=2087466
cups windows:
http://www.gigamegablog.com/2012/09/03/adding-a-linux-cups-printer-to-windows-8/
mpi fons van hees:
http://www.pds.twi.tudelft.nl/vakken/in4049TUold/lab/poisson/exerc/exerc1/exerc1.html
nameservers:
nmcli dev list iface eth1 | grep IP4
bind9 cache:
rndc dumpdb -cache
This will create a file called named_dump.db in the /var/cache/bind/ directory
onafhankelijke independent firefox sessie session:
fifrefox -no-remote
subdomain search en andere tools: https://pentest-tools.com/home
14.04: foutmeldingen bij booten:
systemd-udevd[1423]:
failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event'
'socket:@/org/freedesktop/hal/udev_event': No such file or directory
oplossing: apt-get remove hal
dit verwijdert ook ivman
bzr launchpad-login willem-sara
bzr launchpad-login wvermin
https://launchpad.net/~willem-sara
https://launchpad.net/~wvermin
https://launchpad.net/~wvermin/+editsshkeys
http://doc.bazaar.canonical.com/latest/en/mini-tutorial/
upgrade the debian way:
https://help.ubuntu.com/community/Upgrades
# Upgrade all the packages to the latest versions
sudo aptitude update
sudo aptitude safe-upgrade
# Update our sources, save the original as /etc/apt/sources.list.ORIG
# This step is REQUIRED, otherwise the instructions below will not upgrade a
# single package.
# Change karmic/lucid to your required releases eg, dapper/hardy, hardy/lucid,
# jaunty/karmic, etc
sudo sed -i.ORIG 's/karmic/lucid/g' /etc/apt/sources.list
# Backup the /etc/apt/sources.list.d/ folder and create an empty one.
# This will disable all Third Party/Launchpad PPA repositories.
# These repositories can be re-enabled after a successful upgrade.
sudo mv /etc/apt/sources.list.d/ /etc/apt/sources.list.d.ORIG/
sudo mkdir /etc/apt/sources.list.d/
# Upgrade your box
sudo aptitude update
sudo aptitude safe-upgrade
sudo aptitude full-upgrade
Asking for cache data failed ...
Oplossen? met
modprobe -r ums_realtek
Echter, zie http://askubuntu.com/questions/132100/errors-in-dmesg-test-wp-failed-assume-write-enabled
disable crash reports:
in /etc/default/apport :
enabled=0
gnome classic toestanden
http://ubuntuforums.org/showthread.php?t=2220264
keyboard zonder rare quotes:
generic 105-key (Intl) PC
English(US, with euro on 5)
in de file /etc/default/keyboard:
XKBMODEL="pc105"
XKBLAYOUT="us"
XKBVARIANT="euro"
XKBOPTIONS=""
thumbnails
apt-get install tumbler ffmpegthumbnailer
jumping firefox workspaces prevent:
xfconf-query -c xfwm4 -p /general/activate_action -s none
bring switch none
shortcut hotkey: autokey
netcdf print deel matrix:
ncks -s "%lf\n" -H -C -dglobaltime,299 -dglobalx,20 -v zs nompi-32.nc > bla
firefox unauthorized access
Enter about:config into the firefox address bar
(confirm the info message in case it shows up)
& search for the preference named
network.negotiate-auth.allow-insecure-ntlm-v1.
double-click it and change its value to true.
mythtv slow recordedseek
http://www.mythtv.org/pipermail/mythtv-users/2007-November/204071.html
/usr/bin/mysql_convert_table_format --user=root --password=XXX
--type=innodb mythconverg recordedseek
bovenstaande doet het niet. Wel werkt:
echo 'alter table recordedseek engine=innodb;' | mysql -uroot -pxxx mythconverg
http://apps.fz-juelich.de/scalasca/releases/scalasca/1.4/docs/INSTALL.txt
intel mpi in slurm
https://software.intel.com/en-us/forums/topic/289115
$ cat test.sh
#!/bin/bash
srun hostname -s | sort -u >mpd.hosts
source /opt/mpi-4.0.026/bin64/mpivars.sh
# Example 1
# Launch application using hydra process manager
mpiexec.hydra -f mpd.hosts -n $SLURM_NPROCS -env I_MPI_DEBUG 5 ./hello
# Example 2
# Launch application using MPD process manager
mpdboot -n $SLURM_NNODES -r ssh
mpiexec -n $SLURM_NPROCS -env I_MPI_DEBUG 5 ./hello
mpdallexit
2. submit a job using sbatch command. For instance,
$ sbatch -n 4 test.sh
android vervanging replicant
http://en.wikipedia.org/wiki/Replicant_%28operating_system%29
svn propset svn:executable yes makeincludes.exe
svn propdel svn:executable makeincludes.F90
svn propset svn:keywords "Id" debug.h
Vergroot griphandles:
To modify Ambiance to have a wider margin, open
/usr/share/themes/Ambiance/metacity-1/metacity-theme-1.xml and increase
the values of the following properties:
<distance name="left_width" value="1"/>
<distance name="right_width" value="1"/>
<distance name="bottom_height" value="1"/>
vimscript: http://learnvimscriptthehardway.stevelosh.com/
gnome-terminal settings:
vroeger:
gconftool-2 --dump '/apps/gnome-terminal' > gnome-terminal-conf.xml
gconftool-2 --load gnome-terminal-conf.xml
nu (in ieder geval sinds 16.04):
dconf dump /org/gnome/terminal/legacy/profiles:/ > gnome-terminal-conf.txt
dconf load /org/gnome/terminal/legacy/profiles:/ > gnome-terminal-conf.txt
virtual box shared folder
mount -t vboxsf [-o OPTIONS] sharename mountpoint
merge combineer pdf:
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=finished.pdf *.pdf
wget zonder parents:
wget --no-parent -rk https://www.nsc.liu.se/~boein/f77to90/
rimshot
http://www.youtube.com/watch?v=E0PIdWdw15U
ffmpeg -> avconv (libav-tools)
sound geluid uit video:
avconv -i VIDEOFILE -acodec libmp3lame -metadata TITLE="Name of Song" OUTPUTFILE.mp3
vertical flip upside down rotate 180 avconv
avconv -i a.mp4 -vf vflip c.mp4
motd lisa:
ssh install2.adm.lisa.surfsara.nl
sudo /usr/sara/sbin/chmotd.sh lisa
gnome panel kleuren
gtk-theme-config
killall gnome-panel
vergelijking fortranc c++ matlab python
http://www.fortran.bcs.org/2012/nm_talk.pdf
ipython notebook
http://nbviewer.ipython.org/github/ipython/ipython/tree/1.x/examples/notebooks/
start ipython met
ipython qtconsole
switch tussen mpich en openmpi
update-alternatives --config mpi
update-alternatives --config mpirun
git restore file:
vind filenaam:
git checkout
restore:
git checkout filenaam
git strange characters:
git config --global core.pager "less -r"
Initieer een git directory XXXXX:
cd XXXXX
git init
git remote add origin https://wvermin@bitbucket.org/wvermin/XXXXX.git
echo "Willem Vermin" >> contributors.txt
git add contributors.txt
git commit -m 'Initial commit with contributors'
git push -u origin master
grep print alle woorden:
grep -o -E '\w+'
touchpad dell inspiron
probleem is dat toetsen ook werken als mousepad
Oplossing:
http://www.penguintutor.com/news/linux/dell-trackpad-ubuntu
mkdir -p /etc/X11/xorg.conf.d
cp /usr/share/X11/xorg.conf.d/50-synaptics.conf /etc/X11/xorg.conf.d
edit /etc/X11/xorg.conf.d/50-synaptics.conf: uncomment de regel
# Option "AreaBottomEdge" "82%"
Jammer, dit werkt niet meer ...
touchpad dell inspiron
in 16.04: doet het niet meer.
Oplossing:
http://askubuntu.com/questions/262287/synaptic-touchpad-on-laptop-not-working/262364#262364
Create file /etc/modprobe.d/psmouse.conf:
options psmouse proto=imps
Om de een of andere reden werkt dit niet. Dit werkt wel: in /etc/rc.local:
modprobe -r psmouse
modprobe psmouse proto=imps
ssd optimalisatie
https://sites.google.com/site/easylinuxtipsproject/ssd
indicator applet complete crasht bij login. Remedie:
gsettings reset-recursively com.canonical.indicator.datetime
gsettings reset-recursively com.canonical.indicator.session
sound pulseaudio logarithmic exponential volume control
symptoom: volume is praktisch 0 bij 85-90 % volume.
oplossing:
/etc/pulse/default.pa
verander
load-module module-udev-detect
in
load-module module-udev-detect ignore_dB=1
scribus-trunk file menu missing
https://bugs.launchpad.net/ubuntu/+source/appmenu-qt5/+bug/1307619
oplossing:
sudo apt-get remove appmenu-qt5
Misschien beter:
in /etc/profile.d zap-appmenu-qt5.sh aanbrengen:
# wwvv zie https://bugs.launchpad.net/ubuntu/+source/appmenu-qt5/+bug/1307619
export QT_QPA_PLATFORMTHEME=
laptop doosje als camping accesspoint:
nm icon, edit, edit wired connection
ipv4 settings: staat normaal op Automatic(DHCP). Verander dit
in 'Shared to other computers'
Zet in nm menu 'Wired connection 1' op connected.
Freeze package on hold prevent update voorbeeld scribus-trunk
echo "scribus-trunk hold" | sudo dpkg --set-selections
en maak hem weer installeerbaar:
echo "scribus-trunk install" | sudo dpkg --set-selections
Welke nvidia driver:
sudo ubuntu-drivers devices
https://help.ubuntu.com/community/BinaryDriverHowto/Nvidia
ziggo hotspot instellingen:
wifi security:
security: WPA & WPA Enterprise
Authentication: Protected EAP (PEAP)
CA certificate: ziggo-public-rootca--g1.der
PEAP version: Automatic
Inner authentication: MSCHAPv2
Certificaat staat op:
https://cdn.ziggo.nl/site/binaries/content/assets/klantenservice/wifispots-certificaten/ziggo-public-rootca---g1.der
Download dit certificaat en geef het hele pad op achter CA certificate.
system font:
gsettings set org.gnome.desktop.interface font-name 'Ubuntu 10'
kan ook met dconf-editor
gnome-tweak-tool eigenlijk nog handiger
pulseaudio equalizer:
http://www.webupd8.org/2013/03/install-pulseaudio-with-built-in-system.html
google index url page:
https://www.google.com/webmasters/tools/submit-url
brother printer gerard abrahams DCP-J552DW
PDF print cups cups-pdf apparmor:
als er home directories zijn buiten /home, bijvoorbeeld /homes/home/
dpkg-reconfigure apparmor
en volg de aanwijzingen
run java .jar file direct:
sudo apt-get install binfmt-support
Screen garbled horizontal scroll in java app, oplossing:
export _JAVA_OPTIONS='-Dsun.java2d.xrender=true'
zie https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/1032936
multilib -m32 (ook voor gcc)
sudo apt-get install g++-multilib gcc-multilib gfortran-multilib
sudo apt-get install libc-dev-i386 # wellicht overbodig
configureer met:
CFLAGS=-m32 CXXFLAGS=-m32 ./configure
Geen background, mime types in de war: herstellen met
apt-get install --reinstall shared-mime-info
Probleem werd veroorzaakt door na te laten
umask 022
te doen alvorens
sudo update-mime-database /usr/share/mime
en
sudo update-desktop-database /usr/share/applications
dhcp server doet het niet: forceer client een ipadres in te stellen:
In /etc/dhcp/dhclient.conf:
timeout 10;
lease {
interface "eth0";
fixed-address 10.0.0.10;
option subnet-mask 255.255.255.0;
renew 2 2022/1/1 00:00:01;
rebind 2 2022/1/1 00:00:01;
expire 2 2022/1/1 0:00:01;
}
renew never
rebind never
expire never
mag denk ik ook
pulseaudio piccolo output device:
Creative ... AudioPCI128 Analog Mono
Kaart kapot?
wget ignore robots.txt:
wget -e robots=off
urlencode urldecode:
sed -e's/%\([0-9A-F][0-9A-F]\)/\\\\\x\1/g'
unicode naar utf8:
ascii2uni -Z "\u%04X" -q
python3 unicode \u00e4:
bytes(a,'latin1').decode('unicode-escape')
waarin a een latin1 gecodeerde string is met \u00e4 etc
out of order messages in syslog:
zie http://serverfault.com/questions/608690/weird-syslog-order
in /etc/rsyslog.conf:
$RepeatedMsgReduction off
zou moeten werken
plaats windows op workspace: ccsm -> place windows fixed window placement
drupal after too many login attemps:
verwijder alle rijen in table flood
===================
drupal installatie op geranium:
sudo apt-get install apache2
test de url: geranium.local, moet de Apache2 Ubuntu Default Page
opleveren
sudo apt-get install php5
test: maak /var/www/html/phpinfo.php:
<?php
phpinfo();
?>
en test de url: geranium.local/phpinfo.php, moet
de php info leveren
sudo apt-get install mysql-client
sudo apt-get install mysql-server
een paswoord voor de root user wordt gevraagd te zetten
test op geranium:
mysql -u root -p -h localhost
moet de mysql prompt geven
sudo apt-get install phpmyadmin libmcrypt-dev mcrypt
Kies apache2 alse server om voor te configureren
Kies 'yes' voor configuratie met dbconfig-common
Het root paswoord voor mysql wordt gevraagd
Er wordt gevraagd een paswoord te kiezen voor het
gebruik van phpmyadmin
sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf
sudo a2enconf phpmyadmin
sudo php5enmod mcrypt
sudo /etc/init.d/apache2 reload
Test: url geranium.local/phpmyadmin
sudo a2enmod userdir
service apache2 restart
Test:
ingelogd als willem:
umask 022
cd
mkdir public_html
echo 'hallo daar' > public_html/index.html
Test: url geranium.local/~willem
moet 'hallo daar' laten zien
edit /etc/apache2/mods-enabled/php5.conf
Volg de instructies in het comment aan het eind van dit bestand
en save.
sudo service apache2 restart
Test:
ingelogd als willem:
echo '<?php phpinfo(); ?>' > ~/public_html/phpinfo.php
url geranium.local/~willem/phpinfo.php
moet phpinfo scherm geven
Foutmeldingen php zichtbaar maken:
cd /etc/php5/apache2/
cp php.ini php.ini.orig
cp /usr/share/php5/php.ini-development php.ini
sudo service apache2 restart
Test:
ingelogd als willem:
echo '<?php apekool(); ?>' > ~/public_html/apekool.php
url geranium.local/~willem/apekool.php
moet een foutmelding geven
Drupal installatie, database ratrabbit, in ~willem/public_html/ratrabbit
De url wordt geranium:8081
Aanpassen apache:
cd /etc/apache2/sites-available
cp 000-default.conf ratrabbit.conf
edit ratrabbit.conf :
verander
<VirtualHost *:80>
in
<VirtualHost *:8081>
na
ServerAdmin webmaster@localhost
de volgende regel:
ServerName geranium:8081
verander
DocumentRoot /var/www/html
in
DocumentRoot /home/willem/public_html/ratrabbit
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
save
cd /etc/apache2/mods-enabled
edit userdir.conf
verander
AllowOverride FileInfo AuthConfig Limit Indexes
in
AllowOverride All
save
Clean urls:
a2enmod rewrite
service apache2 restart
edit /etc/apache2/ports.conf
na
Listen 80
voeg toe:
Listen 8081
save
a2ensite ratrabbit
service apache2 reload
test:
ingelogd als willem:
cd ~/public_html
umask 022
mkdir ratrabbit
cd ratrabbit
echo '8081' > index.html
url geranium.local:8081
moet '8081' laten zien
Installeren ftp server:
sudo apt-get install ftpd
Installeren drupal:
Ingelogd als willem:
umask 022
mkdir ~/drupals # om drupal sources etc in te bewaren
cd drupals
wget http://ftp.drupal.org/files/projects/drupal-7.41.tar.gz
tar xf drupal-7.41.tar.gz
rm ~/public_html/ratrabbit/index.html
cd drupal-7.41
cp -r * ~/public_html/ratrabbit
cp .htaccess ~/public_html/ratrabbit
Test:
url geranium.local:8081
Moet start configratiescherm van drupal te zien geven
NOG NIET configureren
creeer mysql user ratrabbit en database ratrabbit met
url geranium.local/phpmyadmin
klik tab Users -> Add user
User name: ratrabbit
Host:
select Local
Password: kies en paswoord voor user ratrabbit
Onder database for user, kies
'Create database with same name and grant all privileges'
klik 'Go' (rechts onder)
In de linker kolom moet nu database 'ratrabbit' staan,
en bij Users Overview moet ook 'ratrabbit' staan
Configureren drupal:
url geranium.local:8081
Volg de instructies
Installeren ckeditor
installeer ckeditor module op de normale manier
Ga naar http://ckeditor.com/download, kies Full Package
en download
Plaats de zip file in ~/drupals
umask 022
cd ~/public_html/ratrabbit/sites/all/libraries
unzip ~/drupals/ckeditor_4.5.5_full.zip
Configureer de ckeditor module: global settings->edit
Verander in Advanced settings 'Path to Ckeditor'
//cdn.ckeditor.com/4.4.3/full-all
in
%l/ckeditor
Zie ook http://cdn.ckeditor.com/ hoe je centraal
geinstalleerde ckeditors kunt gebruiken
Eventueel: in Configuration->Text formats kun je
de volgorde van full-filtered etc zetten
color icons:
download van http://ckeditor.com/addon/moonocolor
moonocolor_4.5.1.zip
Plaats deze in ~/drupals
umask 022
cd ~/public_html/ratrabbit/sites/all/libraries/ckeditor/skins
unzip ~/drupals/moonocolor_4.5.1.zip
en configureer ckeditor (global settings)
Overlay aan/uit: geranium.local:8081/user
-> edit -> administrative overlay
content type koppelen aan text format:
Took me forever to find this.
You set the default text format by the field now:
So go to your existing content type Structure > Content Types
Click manage fields beside the content type you want to edit.
This includes default content types for drupal 7.
Let op: de setting werkt alleen voor nieuwe nodes:
Click edit beside whatever field you want to change the default
text format for. (This includes the Body text area like in Drupal 6.)
For EXISTING nodes, edit, select format and save.
The editor will default to the last selected format from this point on.
For every NEW Nodes (default),
Configuration > Content Authoring > Text Formats
DRAG the desired default format to the top of the list.
Non-wysiwyg editors: http://www.elated.com/articles/textile-markdown-nice-alternatives-to-wysiwyg-editors/
simplewiki geeft problemen:
Notice: Undefined property: SimpleWikiDocNode::$content in SimpleWikiParser->_char_repl()
(line 1009 of /FS/local/TheoDueWeb/drupal/sites/all/modules/simplewiki/SimpleWiki.php)
Opgelost door achter
class SimpleWikiDocNode
{
# A node in the document tree.
public $children;
public $parent;
public $kind;
te plaatsen:
public $content;
simplewiki docu onder text block:
activeer people->permissions->better formats->show format tip
taxonomy terms in url:
The keys to getting this to work is:
install and enable the Entity API, Entity Tokens,
Path Auto and Taxonomy modules.
create a field on your content type and set Field Type
to Term Reference and name it something like
'field-content-category' (machine name)
Set the Number of Values, aka, 'Maximum number of values
users can enter for this field' to 1 (very important if you
want to use the joined-path tokens).
set the URL patterns (admin/config/search/path/patterns) to
something like
'[node:field-content-category:parents:join-path]/[node:field_content_category]/[node:title]'
===============
