Re: essai par rapports aux variables d'environnement etc.

[^] # Re: essai par rapports aux variables d'environnement etc.

Posté par cévhé le 12 janvier 2026 à 10:21. En réponse au message détecter le branchement ou l'allumage d'un périphérique USB (VPI Epson). Évalué à 2.

J'ai fais quelques modifs dans les scripts pour logger les informations peut-être pertinentes :

udev lance script1.sh :

#!/bin/sh
LOGFILE="/tmp/script1.log"
echo "-------------------$(date)-----------------------------" >> "$LOGFILE" 2>&1
echo "whoami : $(whoami)" >> "$LOGFILE" 2>&1
echo "id : $(id)" >> "$LOGFILE" 2>&1
echo "pwd : $(pwd)" >> "$LOGFILE" 2>&1
echo "DISPLAY : ${DISPLAY}" >> "$LOGFILE" 2>&1
echo "XAUTHORITY : ${XAUTHORITY}" >> "$LOGFILE" 2>&1
echo "set ------------------------" >> "$LOGFILE" 2>&1
set >> "$LOGFILE" 2>&1
echo "env ------------------------" >> "$LOGFILE" 2>&1
env >> "$LOGFILE" 2>&1
echo "su - prn -------------------" >> "$LOGFILE" 2>&1
su - prn -c /usr/local/bin/map-epson.sh

puis map-epson.sh exécute la commande kivabien (et logge les données au passage)

#!/bin/sh
xinput | grep EPSON | grep -oP '(?<=id=)[0-9]+' | xargs -I % xinput map-to-output % DP-2
LOGFILE2="/tmp/script2.log"
echo "-------------------$(date)-----------------------------" >> "$LOGFILE2" 2>&1
echo "whoami : $(whoami)" >> "$LOGFILE2" 2>&1
echo "id : $(id)" >> "$LOGFILE2" 2>&1
echo "pwd : $(pwd)" >> "$LOGFILE2" 2>&1
echo "DISPLAY : ${DISPLAY}" >> "$LOGFILE2" 2>&1
echo "XAUTHORITY : ${XAUTHORITY}" >> "$LOGFILE2" 2>&1
echo "set ------------------------" >> "$LOGFILE2" 2>&1
set >> "$LOGFILE2" 2>&1
echo "env ------------------------" >> "$LOGFILE2" 2>&1
env >> "$LOGFILE2" 2>&1
logger -t udevepson 'epson...'

Si l'user prn lance le script map-epson.sh directement, ça fonctionne bien et le script2.log contient :

-------------------lun. 12 janv. 2026 09:59:32 CET-----------------------------
whoami : prn
id : uid=1000(prn) gid=1000(prn) groupes=1000(prn),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),100(users),105(lpadmin),125(sambashare)
pwd : /home/prn
DISPLAY : :0.0
XAUTHORITY : /home/prn/.Xauthority
set ------------------------
CLUTTER_BACKEND='x11'
CLUTTER_IM_MODULE='ibus'
COLORTERM='truecolor'
COMPIZ_CONFIG_PROFILE='mint'
DBUS_SESSION_BUS_ADDRESS='unix:path=/run/user/1000/bus'
DESKTOP_SESSION='xfce'
DISPLAY=':0.0'
GDMSESSION='xfce'
GDM_LANG='fr_FR'
GTK3_MODULES='xapp-gtk3-module'
GTK_IM_MODULE='ibus'
GTK_MODULES='gail:atk-bridge'
HOME='/home/prn'
IFS=' 
'
LANG='fr_FR.UTF-8'
LANGUAGE='fr_FR'
LESSCLOSE='/usr/bin/lesspipe %s %s'
LESSOPEN='| /usr/bin/lesspipe %s'
LOGFILE2='/tmp/script2.log'
LOGNAME='prn'
LS_COLORS='rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.crdownload=00;90:*.dpkg-dist=00;90:*.dpkg-new=00;90:*.dpkg-old=00;90:*.dpkg-tmp=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:*.swp=00;90:*.tmp=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90:'
OPTIND='1'
PANEL_GDK_CORE_DEVICE_EVENTS='0'
PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin'
PPID='1894'
PS1='$ '
PS2='> '
PS4='+ '
PWD='/home/prn'
QT_ACCESSIBILITY='1'
QT_IM_MODULE='ibus'
SESSION_MANAGER='local/linux-n-08.0670107C.ac-strasbourg.fr:@/tmp/.ICE-unix/1259,unix/linux-n-08.0670107C.ac-strasbourg.fr:/tmp/.ICE-unix/1259'
SHELL='/bin/bash'
SHLVL='1'
SSH_AGENT_PID='1466'
SSH_AUTH_SOCK='/tmp/ssh-bbLIHggS9cUr/agent.1456'
TERM='xterm-256color'
USER='prn'
VTE_VERSION='7600'
WINDOWID='60817901'
XAUTHORITY='/home/prn/.Xauthority'
XDG_CONFIG_DIRS='/etc/xdg/xdg-xfce:/etc/xdg'
XDG_CURRENT_DESKTOP='XFCE'
XDG_DATA_DIRS='/usr/share/xfce4:/home/prn/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share'
XDG_GREETER_DATA_DIR='/var/lib/lightdm-data/prn'
XDG_MENU_PREFIX='xfce-'
XDG_RUNTIME_DIR='/run/user/1000'
XDG_SEAT='seat0'
XDG_SEAT_PATH='/org/freedesktop/DisplayManager/Seat0'
XDG_SESSION_CLASS='user'
XDG_SESSION_DESKTOP='xfce'
XDG_SESSION_ID='c2'
XDG_SESSION_PATH='/org/freedesktop/DisplayManager/Session0'
XDG_SESSION_TYPE='x11'
XDG_VTNR='7'
XMODIFIERS='@im=ibus'
_='/usr/local/bin/map-epson.sh'
ftp_proxy='http://10.131.254.254:3128/'
http_proxy='http://10.131.254.254:3128/'
https_proxy='http://10.131.254.254:3128/'
no_proxy='localhost,127.0.0.1,::1'
env ------------------------
LESSOPEN=| /usr/bin/lesspipe %s
no_proxy=localhost,127.0.0.1,::1
LANGUAGE=fr_FR
USER=prn
XDG_SEAT=seat0
SSH_AGENT_PID=1466
XDG_SESSION_TYPE=x11
COMPIZ_CONFIG_PROFILE=mint
SHLVL=1
HOME=/home/prn
DESKTOP_SESSION=xfce
PANEL_GDK_CORE_DEVICE_EVENTS=0
GTK_MODULES=gail:atk-bridge
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
COLORTERM=truecolor
https_proxy=http://10.131.254.254:3128/
GTK_IM_MODULE=ibus
LOGNAME=prn
WINDOWID=60817901
http_proxy=http://10.131.254.254:3128/
_=/usr/local/bin/map-epson.sh
XDG_SESSION_CLASS=user
CLUTTER_BACKEND=x11
TERM=xterm-256color
XDG_SESSION_ID=c2
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
SESSION_MANAGER=local/linux-n-08.0670107C.ac-strasbourg.fr:@/tmp/.ICE-unix/1259,unix/linux-n-08.0670107C.ac-strasbourg.fr:/tmp/.ICE-unix/1259
GDM_LANG=fr_FR
GTK3_MODULES=xapp-gtk3-module
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_MENU_PREFIX=xfce-
ftp_proxy=http://10.131.254.254:3128/
XDG_RUNTIME_DIR=/run/user/1000
DISPLAY=:0.0
LANG=fr_FR.UTF-8
XDG_CURRENT_DESKTOP=XFCE
XMODIFIERS=@im=ibus
XDG_SESSION_DESKTOP=xfce
XAUTHORITY=/home/prn/.Xauthority
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.crdownload=00;90:*.dpkg-dist=00;90:*.dpkg-new=00;90:*.dpkg-old=00;90:*.dpkg-tmp=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:*.swp=00;90:*.tmp=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90:
SSH_AUTH_SOCK=/tmp/ssh-bbLIHggS9cUr/agent.1456
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/prn
SHELL=/bin/bash
QT_ACCESSIBILITY=1
GDMSESSION=xfce
LESSCLOSE=/usr/bin/lesspipe %s %s
QT_IM_MODULE=ibus
XDG_VTNR=7
PWD=/home/prn
XDG_CONFIG_DIRS=/etc/xdg/xdg-xfce:/etc/xdg
CLUTTER_IM_MODULE=ibus
XDG_DATA_DIRS=/usr/share/xfce4:/home/prn/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share
VTE_VERSION=7600

Le branchement du VPI et donc le déclenchement par udev ne donne pas le résultat escompté pour le fonctionnement du VPI et les logs sont :

script1.log

-------------------Mon Jan 12 10:01:20 CET 2026-----------------------------
whoami : root
id : uid=0(root) gid=0(root) groups=0(root)
pwd : /
DISPLAY : 
XAUTHORITY : 
set ------------------------
ACTION='add'
BUSNUM='001'
CURRENT_TAGS=':seat:'
DEVNAME='/dev/bus/usb/001/020'
DEVNUM='020'
DEVPATH='/devices/pci0000:00/0000:00:14.0/usb1/1-1'
DEVTYPE='usb_device'
DRIVER='usb'
ID_BUS='usb'
ID_FOR_SEAT='usb-pci-0000_00_14_0-usb-0_1'
ID_MODEL='0907'
ID_MODEL_ENC='0907'
ID_MODEL_ID='0907'
ID_PATH='pci-.&checktime(0000,00,14,':').0-usb-0:1'
ID_PATH_TAG='pci-0000_00_14_0-usb-0_1'
ID_PATH_WITH_USB_REVISION='pci-.&checktime(0000,00,14,':').0-usbv2-0:1'
ID_REVISION='0000'
ID_SERIAL='04b8_0907'
ID_USB_INTERFACES=':090001:090002:'
ID_USB_MODEL='0907'
ID_USB_MODEL_ENC='0907'
ID_USB_MODEL_ID='0907'
ID_USB_REVISION='0000'
ID_USB_SERIAL='04b8_0907'
ID_USB_VENDOR='04b8'
ID_USB_VENDOR_ENC='04b8'
ID_USB_VENDOR_ID='04b8'
ID_VENDOR='04b8'
ID_VENDOR_ENC='04b8'
ID_VENDOR_FROM_DATABASE='Seiko Epson Corp.'
ID_VENDOR_ID='04b8'
IFS=' 
'
LOGFILE='/tmp/script1.log'
MAJOR='189'
MINOR='19'
OPTIND='1'
PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
PPID='4169'
PRODUCT='4b8/907/0'
PS1='# '
PS2='> '
PS4='+ '
PWD='/'
SEQNUM='4736'
SUBSYSTEM='usb'
TAGS=':seat:'
TYPE='9/0/2'
UDEV_DATABASE_VERSION='1'
USEC_INITIALIZED='1765002875'
env ------------------------
ID_BUS=usb
DEVNAME=/dev/bus/usb/001/020
ID_FOR_SEAT=usb-pci-0000_00_14_0-usb-0_1
ACTION=add
ID_VENDOR_FROM_DATABASE=Seiko Epson Corp.
ID_PATH_WITH_USB_REVISION=pci-.&checktime(0000,00,14,':').0-usbv2-0:1
SEQNUM=4736
USEC_INITIALIZED=1765002875
ID_USB_VENDOR_ENC=04b8
UDEV_DATABASE_VERSION=1
BUSNUM=001
TAGS=:seat:
MAJOR=189
ID_USB_VENDOR=04b8
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-1
ID_USB_VENDOR_ID=04b8
ID_MODEL_ENC=0907
ID_USB_REVISION=0000
ID_USB_INTERFACES=:090001:090002:
ID_MODEL=0907
SUBSYSTEM=usb
ID_SERIAL=04b8_0907
ID_MODEL_ID=0907
MINOR=19
DRIVER=usb
TYPE=9/0/2
ID_PATH=pci-.&checktime(0000,00,14,':').0-usb-0:1
CURRENT_TAGS=:seat:
DEVNUM=020
ID_VENDOR_ENC=04b8
PRODUCT=4b8/907/0
ID_PATH_TAG=pci-0000_00_14_0-usb-0_1
ID_USB_MODEL_ENC=0907
ID_VENDOR=04b8
PWD=/
DEVTYPE=usb_device
ID_VENDOR_ID=04b8
ID_USB_MODEL=0907
ID_USB_SERIAL=04b8_0907
ID_USB_MODEL_ID=0907
ID_REVISION=0000
su - prn -------------------

et pour script2.log

-------------------lun. 12 janv. 2026 10:01:20 CET-----------------------------
whoami : prn
id : uid=1000(prn) gid=1000(prn) groupes=1000(prn),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),100(users),105(lpadmin),125(sambashare)
pwd : /home/prn
DISPLAY : 
XAUTHORITY : 
set ------------------------
DBUS_SESSION_BUS_ADDRESS='unix:path=/run/user/1000/bus'
HOME='/home/prn'
IFS=' 
'
LANG='fr_FR.UTF-8'
LOGFILE2='/tmp/script2.log'
LOGNAME='prn'
MAIL='/var/mail/prn'
OPTIND='1'
PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin'
PPID='4176'
PS1='$ '
PS2='> '
PS4='+ '
PWD='/home/prn'
SHELL='/bin/bash'
SHLVL='0'
USER='prn'
XDG_DATA_DIRS='/home/prn/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share'
XDG_RUNTIME_DIR='/run/user/1000'
XDG_SESSION_CLASS='background'
XDG_SESSION_ID='c19'
XDG_SESSION_TYPE='unspecified'
_='/usr/local/bin/map-epson.sh'
ftp_proxy='http://10.131.254.254:3128/'
http_proxy='http://10.131.254.254:3128/'
https_proxy='http://10.131.254.254:3128/'
no_proxy='localhost,127.0.0.1,::1'
env ------------------------
MAIL=/var/mail/prn
no_proxy=localhost,127.0.0.1,::1
USER=prn
XDG_SESSION_TYPE=unspecified
SHLVL=0
HOME=/home/prn
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
https_proxy=http://10.131.254.254:3128/
LOGNAME=prn
http_proxy=http://10.131.254.254:3128/
_=/usr/local/bin/map-epson.sh
XDG_SESSION_CLASS=background
XDG_SESSION_ID=c19
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
ftp_proxy=http://10.131.254.254:3128/
XDG_RUNTIME_DIR=/run/user/1000
LANG=fr_FR.UTF-8
SHELL=/bin/bash
PWD=/home/prn
XDG_DATA_DIRS=/home/prn/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share0

(j'ai coupé les deux derniers logs : udev s'exécute deux fois et donc les logs bégayent mais je ne pense pas que ce soit ça le problème. Je n'ai mis qu'une seule des deux occurences)