Différences

Ci-dessous, les différences entre deux révisions de la page.

--- tech:notes_ecran_tactile_touch_screen [2025/11/11 20:55] – Jean-Baptiste
+++ tech:notes_ecran_tactile_touch_screen [2026/06/07 19:12] (Version actuelle) – modification externe 127.0.0.1
@@ Ligne 1: / Ligne 1: @@
+<!DOCTYPE markdown>
+{{tag>Brouillon Matériel Xorg}}
+# Notes écran tactile touch screen
+Voir :
+* [[Notes Systemd udev]]
+* https://wiki.archlinux.org/index.php/touchscreen
+* https://wiki.ubuntu.com/Touchscreen
+* https://wiki.ubuntu.com/X/InputCoordinateTransformation
+Pb écran tactile
+~~~bash
+apt-get install xinput-calibrator xinput
+~~~
+~~~bash
+export DISPLAY=:0
+ID=$(xinput list --id-only "eGalax Inc. USB TouchController")
+SCREEN=$(xrandr 2>&1 | grep -e ' connected primary' | awk '{print $1}')
+#xinput --map-to-output 11 DVI-D-0
+xinput --map-to-output $ID $SCREEN
+~~~
+~~~bash
+xinput list-props "eGalax Inc. USB TouchController" | grep -e "Coordinate Transformation Matrix"
+~~~
+~~~
+        Coordinate Transformation Matrix (155): 0.000000, 0.375000, 0.000000, -1.000000, 0.000000, 1.000000, 0.000000, 0.000000, 1.000000
+~~~
+~~~bash
+xinput_calibrator -v --device "eGalax Inc. USB TouchController"
+~~~
+https://askubuntu.com/questions/41385/cannot-calibrate-touchscreen
+## Persistance
+`/usr/local/bin/touchscreencfg.sh`
+~~~bash
+#! /bin/bash
+export DISPLAY=:0
+NAME=$(xinput list  --name-only | grep -i -e touch | grep -iv -e ' pen')
+ID=$(xinput list --id-only "$NAME")
+SCREEN=$(xrandr 2>&1 | grep -e ' connected primary' | awk '{print $1}')
+/usr/bin/xinput --map-to-output $ID $SCREEN
+( sleep 5 ; /usr/bin/xinput --map-to-output $ID $SCREEN ) &
+~~~
+~~~bash
+chmod +x /usr/local/bin/touchscreencfg.sh
+~~~
+`~/.xsessionrc`
+~~~bash
+/usr/local/bin/touchscreencfg.sh
+~~~
+## Pb
+### Pb persistance sur débranchement ou extinction de l'écran
+Voir [[Notes Systemd udev]]
+--------------------------------
+## Notes en vrac - pb débranchement retranchement extinction écran - perte orientation touchscreen
+Voir :
+* https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-touchscreen-display-raspberry-pi/touchscreen-install-and-calibrate
+~~~
+.624] (II) NVIDIA(0): Setting mode "DVI-D-0: nvidia-auto-select @768x1024 +0+0 {ViewPortIn=768x1024, ViewPortOut=1024x768+0+0, Rotation=270}"
+~~~
+~~~bash
+modprobe evdev
+modprobe usbtouchscreen usbhid
+cat /proc/bus/input/devices
+echo Y >  /sys/module/usbtouchscreen/parameters/swap_xy
+~~~
+Enable the Touchscreen in Lightdm (the login screen)
+    copy ~/.config/monitors.xml to /var/lib/lightdm/.config
+~~~bash
+xinput_calibrator --device "Elo Touch Solutions Elo Touch Solutions Pcap USB Interface"  --output-type xorg.conf.d --no-timeout
+~~~
+~~~
+Calibrating EVDEV driver for "Elo Touch Solutions Elo Touch Solutions Pcap USB Interface" id=8
+        current calibration values (from XInput): min_x=0, max_x=4095 and min_y=0, max_y=4095
+Doing dynamic recalibration:
+        Setting calibration data: 1, 4064, -19, 4082
+        --> Making the calibration permanent <--
+  copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf' (/usr/share/X11/xorg.conf.d/ in some distro's)
+Section "InputClass"
+        Identifier      "calibration"
+        MatchProduct    "Elo Touch Solutions Elo Touch Solutions Pcap USB Interface"
+        Option  "Calibration"   "1 4064 -19 4082"
+        Option  "SwapAxes"      "0"
+EndSection
+~~~
+`/etc/X11/xorg.conf.d/99-calibration.conf`
+~~~
+Section "InputClass"
+        Identifier      "calibration"
+        MatchProduct    "Elo Touch Solutions Elo Touch Solutions Pcap USB Interface"
+        Option  "Calibration"   "44 4061 4081 -44"
+        Option  "SwapAxes"      "1"
+        Option "InvertX"        "0"
+        Option "InvertY"        "0"
+EndSection
+~~~
+### Matrix
+https://gist.github.com/mildmojo/48e9025070a2ba40795c#file-rotate_desktop-sh-L41
+https://github.com/swkim01/waveshare-dtoverlays
+~~~
+xinput list-props "Elo Touch Solutions Elo Touch Solutions Pcap USB Interface" | grep Matrix
+        Coordinate Transformation Matrix (155): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
+~~~
+~~~
+Option "TransformationMatrix" "1 0 0 0 1 0 0 0 1"
+~~~
+### Troubleshooting
+~~~bash
+sudo apt-get install -y evtest
+~~~
+## Notes
+https://askubuntu.com/questions/253395/touchscreen-calibration-with-dual-monitors-nvidia-and-xinput
+https://wiki.archlinux.org/index.php/Calibrating_Touchscreen
+Do it automatically via a udev rule
+Create a file something like `/etc/udev/rules.d/99-acer-touch.rules` with contents like this:
+~~~
+ENV{ID_VENDOR_ID}=="2149",ENV{ID_MODEL_ID}=="2703",ENV{WL_OUTPUT}="DVI1",ENV{LIBINPUT_CALIBRATION_MATRIX}="1 0 0  0 1 0"
+~~~
+LXQt
+`~/.config/autostart/lxqt-config-touchpad-autostart.desktop`
+~~~ini
+[Desktop Entry]
+Comment=Autostart touchpad settings for lxqt-config-input
+Exec=lxqt-config-input --load-touchpad
+Name=lxqt-config-touchpad-autostart
+OnlyShowIn=LXQt
+Type=Application
+Version=1.0
+~~~