Hi,
2020. 11. 18. 2:47 keltezéssel, l...@sunray.cn írta:
Hi
I'm using hdmi and lvds with touch screen. But the touch screen can move the pointer
between two monitors like the picture now.png.
But I want my touch screen to be applied on lvds like I want.png
So I follow arch wiki to set the configuration. But I found xrandr showed only
one screen:
root@imx6qsabresd:~# xrandr
Screen 0: minimum 240 x 240, current 1024 x 768, maximum 8192 x 8192
DISP3 BG connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm
x 0mm
1024x768_60.00 59.92*+
xdpyinfo showed two screens.
Here is xdpyinfo's output and /etc/X11/xorg.conf
Also, I found the HDMI screen's cursor is a cross(the same as 'X').
How to solve these problems?
you can run "xinput map-to-output ..." command after
starting X but it's not persistent and if the touchscreen
is a USB device, the setting doesn't survive hotplugging.
The way I solved it was with fixed configuration
using a template file with "sed" substitutions and
this utility: https://github.com/zboszor/touchscreen-transform
For example, this configuration template snippet is used
for a specific touchscreen and a script that runs before
starting X substitutes "@TRANSMATRIX@" with the output of
this "touchscreen-transform" command:
Section "InputClass"
Identifier "INTERNAL_TS"
MatchIsTouchscreen "on"
MatchProduct "eGalax Inc. eGalaxTouch P80H84 2072 v00_T3 k4.08.165"
Driver "libinput"
Option "TransformationMatrix" "@TRANSMATRIX@"
EndSection
This does work if the USB touchscreen is hotplugged.
The "touchscreen-transform" program expects the list of
screen resolutions and assumes they are located side by side.
It doesn't care if you use separate X screens or Xinerama.
The TransformationMatrix values are identical.
Obviously you need to know the screen resolutions in advance.
Monitor-hotplugging is not supported, as it also need the
touchscreen's TransformationMatrix values to be reset.
Regards,
Zoltán Böszörményi
Regards
Mihan
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