Score:2

Using an external touchscreen on Ubuntu 22.04 Wayland problem

br flag

I have an external AOC 16T2 touchscreen, which is recognized as an touchscreen.

In X11 this works fine in extended desktop/join displays after mapping the touch input to the external screen.

 xinput map-to-output <xinput-id> <xrandr-id>

BTW I'm not sure why this is not the default, because having to touch the external monitor to click on a link on the first monitor does not make any sense IMHO.

In Wayland this does not work. xinput (wrapper) is not recognizing the monitor anymore, so there is no <xinput-id>

The touchscreen is still working, but a click on the secondary screen is recorded as a click on the first screen, which is wrong.

libinput is listing the device:

Device:           Melfas LGDisplay Incell Touch
Kernel:           /dev/input/event13
Group:            5
Seat:             seat0, default
Size:             341x195mm
Capabilities:     touch 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      identity matrix
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a
Rotation:         n/a

How can I fix the input mapping problem in the default Ubuntu 22.04 Wayland?

I sit in a Tesla and translated this thread with Ai:

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