i've a touchscreen laptop (1920x1080) and a ineractive whiteboard with touch (1280x800). To use the full resolution of the laptop i just present a part of the monitor, that is done succesfully with the first xrandr command.
Now i want to map the touch events of the monitor to the laptop monitor, which works.
Because the whiteboard has always different number by xinput list i grep the number and show it on the bash. Then i map the touch events of the whiteboard to this part of the presented screen.
The last commands are a part of xfce4 to maximise any window inside the presented part of my laptop screen.
#!/bin/
sh xrandr --output VIRTUAL1 --off --output eDP1 --mode 1920x1080 --pos 0x0 --rotate normal --output HDMI1 --mode 1280x800 --pos 480x270 --rotate normal
xinput map-to-output 'ELAN Touchscreen' eDP1
daten=$(xinput list | grep 'TimeLink' | tail -n 1 | cut -c 56-57)
echo $daten
xinput map-to-output "$daten" HDMI1
xfconf-query -c xfwm4 -p /general/margin_right -s 160
xfconf-query -c xfwm4 -p /general/margin_left -s 480
xfconf-query -c xfwm4 -p /general/margin_top -s 270
xfconf-query -c xfwm4 -p /general/margin_bottom -s 10
This script worked fine, but suddenly the mapping of the whiteboard didn't function any more. At the left and right margin there get a displace of the mouse position and the touch event. I tried to calibrate the monitor by deactivating eDP1 and use xinput_calibrator for the whiteboard and wrote this into /etc/X11/xorg.conf.d/99-calibration.conf like the programme suggested.
But the touch event is after a reboot still perfect in the middle but gets worse on both margin, left and right.
I also checked, if any programme was updated, but i found nothing helpful. The beamer also just show the picture without any new ratio and so on. Any suggestions?
