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sebB
l33t
Joined: 02 Mar 2011
Posts: 806
Location: S.O. France
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 Posted: Fri Mar 29, 2013 9:52 pm Post subject: [Udev] Règle perso qui ne fonctionne pas (résolu) |
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Bonjour,
Je souhaite créer une règle udev afin de basculer le son et l'écran vers la sortie hdmi automatiquement lorsque le cable est branché.
Je ne comprends pas pourquoi le script de bascule ne fonctionne pas (il ne se lance pas).
udevadm monitor quand je branche ou décranche la prise hdmi
| Code: | KERNEL[183812.383953] change /devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0 (drm)
UDEV [183812.462182] change /devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0 (drm) |
Ma règle crée dans /etc/udev/rules.d/10-hdmi.rules
| Code: | | SUBSYSTEM=="drm", DEVPATH=="/devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0", ACTION=="change", RUN+="/bin/sh /home/seb/hdmi.sh" |
udevadm test /devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0
| Code: | calling: test
version 197
This program is for debugging only, it does not run any program
specified by a RUN key. It may show incorrect results, because
some values may be different, or not available at a simulation run.
=== trie on-disk ===
tool version: 197
file size: 5481459 bytes
header size 80 bytes
strings 1230475 bytes
nodes 4250904 bytes
load module index
Skip overridden file: /lib64/udev/rules.d/80-net-name-slot.rules.
read rules file: /lib64/udev/rules.d/10-dm.rules
read rules file: /etc/udev/rules.d/10-hdmi.rules
read rules file: /lib64/udev/rules.d/11-dm-lvm.rules
read rules file: /lib64/udev/rules.d/13-dm-disk.rules
read rules file: /lib64/udev/rules.d/40-gentoo.rules
read rules file: /lib64/udev/rules.d/40-usb-media-players.rules
read rules file: /lib64/udev/rules.d/41-libsane.rules
read rules file: /lib64/udev/rules.d/42-usb-hid-pm.rules
read rules file: /lib64/udev/rules.d/50-udev-default.rules
read rules file: /lib64/udev/rules.d/60-cdrom_id.rules
read rules file: /lib64/udev/rules.d/60-persistent-alsa.rules
read rules file: /lib64/udev/rules.d/60-persistent-input.rules
read rules file: /lib64/udev/rules.d/60-persistent-serial.rules
read rules file: /lib64/udev/rules.d/60-persistent-storage-tape.rules
read rules file: /lib64/udev/rules.d/60-persistent-storage.rules
read rules file: /lib64/udev/rules.d/60-persistent-v4l.rules
read rules file: /lib64/udev/rules.d/61-accelerometer.rules
read rules file: /lib64/udev/rules.d/64-btrfs.rules
read rules file: /lib64/udev/rules.d/69-dm-lvm-metad.rules
read rules file: /etc/udev/rules.d/70-persistent-cd.rules
read rules file: /etc/udev/rules.d/70-persistent-net.rules
read rules file: /lib64/udev/rules.d/70-printers.rules
read rules file: /lib64/udev/rules.d/70-udev-acl.rules
read rules file: /lib64/udev/rules.d/75-net-description.rules
read rules file: /lib64/udev/rules.d/75-probe_mtd.rules
read rules file: /lib64/udev/rules.d/75-tty-description.rules
read rules file: /lib64/udev/rules.d/77-nm-olpc-mesh.rules
read rules file: /lib64/udev/rules.d/78-sound-card.rules
read rules file: /lib64/udev/rules.d/80-drivers.rules
read rules file: /etc/udev/rules.d/80-net-name-slot.rules
read rules file: /lib64/udev/rules.d/80-udisks.rules
read rules file: /lib64/udev/rules.d/90-alsa-restore.rules
read rules file: /lib64/udev/rules.d/90-network.rules
read rules file: /lib64/udev/rules.d/95-dm-notify.rules
read rules file: /lib64/udev/rules.d/95-keyboard-force-release.rules
read rules file: /lib64/udev/rules.d/95-keymap.rules
read rules file: /lib64/udev/rules.d/95-udev-late.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-dell.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-fujitsu.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-gateway.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-ibm.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-lenovo.rules
read rules file: /lib64/udev/rules.d/95-upower-battery-recall-toshiba.rules
read rules file: /lib64/udev/rules.d/95-upower-csr.rules
read rules file: /lib64/udev/rules.d/95-upower-hid.rules
read rules file: /lib64/udev/rules.d/95-upower-wup.rules
read rules file: /lib64/udev/rules.d/99-fuse.rules
read rules file: /lib64/udev/rules.d/99-ntfs3g.rules
rules contain 196608 bytes tokens (16384 * 12 bytes), 29617 bytes strings
9476 strings (89912 bytes), 7174 de-duplicated (62598 bytes), 2303 trie nodes used
RUN '/bin/sh /home/seb/hdmi.sh' /etc/udev/rules.d/10-hdmi.rules:1
GROUP 27 /lib64/udev/rules.d/50-udev-default.rules:29
RUN 'udev-acl --action=$env{ACTION} --device=$env{DEVNAME}' /lib64/udev/rules.d/70-udev-acl.rules:74
handling device node '/dev/dri/card0', devnum=c226:0, mode=0660, uid=0, gid=27
preserve permissions /dev/dri/card0, 020660, uid=0, gid=27
preserve already existing symlink '/dev/char/226:0' to '../dri/card0'
ACTION=add
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
MAJOR=226
MINOR=0
SUBSYSTEM=drm
TAGS=:udev-acl:
USEC_INITIALIZED=43021
run: '/bin/sh /home/seb/hdmi.sh'
run: 'udev-acl --action=add --device=/dev/dri/card0'
unload module index |
Je tiens a préciser que mon script fonctionne bien, en console aucun problème.
Bien que udevadm semble dire que mon script est lancé, il n'en est rien.
Si je remplace mon script par un simple qui lance firefox, rien ne se passe aussi.
Merci
EDIT:
Si je remplace RUN+="/home/seb/hdmi.sh" par RUN+="/bin/echo test >> /home/seb/test" rien ne se passe aussi
Last edited by sebB on Wed Apr 03, 2013 8:37 am; edited 1 time in total |
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netfab
Veteran
Joined: 03 Mar 2005
Posts: 1897
Location: 127.0.0.1
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| Posted: Sat Mar 30, 2013 6:40 am Post subject: |
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Salut,
Tu as redémarré depuis ? Si non, as tu lancé un :
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guilc
Bodhisattva
Joined: 15 Nov 2003
Posts: 3326
Location: Paris - France
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| Posted: Sat Mar 30, 2013 7:57 am Post subject: |
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Hello,
Primo, je mettrais le script dans /usr/local/bin et propriété de root, ne serait-ce que par propreté. Et probablement udev a des restrictions sur les endroits où sont les scripts. Ça ne serait pas étonnant, ne serait-ce que par sécurité : là, tu dis à udev (qui tourne en root) d’exécuter un script maitrisé par un utilisateur. C'est juste un gigantesque trou de sécurité...
Donc premier test :
| Code: | sudo mv /home/seb/hdmi.sh /usr/local/bin/
sudo chown root:root /usr/local/bin/hdmi.sh
sudo chmod +x /usr/local/bin/hdmi.sh |
Et modifie en conséquence la regle udev. Pas besoin de préfixer par /bin/sh non plus :
| Code: | | SUBSYSTEM=="drm", DEVPATH=="/devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0", ACTION=="change", RUN+="/usr/local/bin/hdmi.sh" |
Ensuite, il a quelle tête ton script ? Il ne dépend pas de variables de l'environnement courant de l'utilisateur ?
Parce que, que tu n'arrives pas à lancer firefox dans une règle udev est tout à fait normal. ça a besoin par exemple du DISPLAY, qui n'est défini que dans ta session, pas pour udev.
_________________
Merci de respecter les règles du forum.
Mon site perso : https://www.xwing.info
Mon PORTDIR_OVERLAY : https://gentoo.xwing.info ou layman -a xwing |
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sebB
l33t
Joined: 02 Mar 2011
Posts: 806
Location: S.O. France
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| Posted: Tue Apr 02, 2013 6:06 pm Post subject: |
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Merci,
Effectivement, j'avais fait 2 erreurs.
La 1ere dans mon script, erreur de frappe dans le chemin
La 2eme, simplement oublié de relancer udev...
Par contre le script est incomplet dans son execution. La commande xrandr ne se lance pas, le reste fonctionnant.
Ci-joint le script
| Code: | #!/bin/bash
state=$(cat /sys/class/drm/card0-HDMI-A-1/status);
if [[ "$state" == "connected" ]]; then
cat >> "/home/seb/.asoundrc" <<EOF
pcm.!default
{ type hw
card 1
device 3
}
EOF
xrandr --output HDMI-0 --auto
xrandr --output HDMI-0 --right-of LVDS
else
rm "/home/seb/.asoundrc"
xrandr --output HDMI-0 --off
fi
sudo /etc/init.d/alsasound restart |
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guilc
Bodhisattva
Joined: 15 Nov 2003
Posts: 3326
Location: Paris - France
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| Posted: Tue Apr 02, 2013 6:23 pm Post subject: |
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Parce que xrandr a besoin... du DISPLAY 
| Code: | # DISPLAY= xrandr
Can't open display
# DISPLAY=:0 xrandr
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 8192 x 8192
DVI-I-1 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 432mm x 324mm
1600x1200 60.0*+
1280x1024 75.0 60.0
1280x960 60.0
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 72.8 75.0 66.7 60.0
720x400 70.1
DVI-I-2 disconnected (normal left inverted right x axis y axis) |
Donc si tu ajoutes "DISPLAY=:0", ça devrait le faire.
Après, faut être sur que ce soit toujours :0...
_________________
Merci de respecter les règles du forum.
Mon site perso : https://www.xwing.info
Mon PORTDIR_OVERLAY : https://gentoo.xwing.info ou layman -a xwing |
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sebB
l33t
Joined: 02 Mar 2011
Posts: 806
Location: S.O. France
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| Posted: Wed Apr 03, 2013 8:36 am Post subject: |
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Après plusieurs tests, j'ai rajouté dans mon script
| Code: | export XAUTHORITY=/home/seb/.Xauthority
export DISPLAY=:0.0 |
Et ca fonctionne
Merci |
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