Bug 480671

Summary:	Switching repeatedly between desktop and tablet mode breaks the touchpad
Product:	[Plasma] kwin	Reporter:	Marco Martin <notmart>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	formularsumo, nate
Priority:	NOR	Keywords:	qt6
Version First Reported In:	git master
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Marco Martin 2024-02-01 12:24:10 UTC

SUMMARY
On wayland on a convertible laptop, switching repeatedly between tablet mode and desktop mode, after a few times returning to desktop mode the touchpad won't get enabled anymore, even tough the osd message "touchpad enabled" still appears.
Conneting a mouse still works, the pointer will reappera and can be moved, but still only with the mouse and not the touchpad.

Comment 1 Nate Graham 2024-02-06 22:55:33 UTC

Is this on X11? I don't recall seeing that OSD on Wayland, even when I use my convertible in a way that disables the touchpad and keyboard.

Comment 2 Marco Martin 2024-02-07 14:30:38 UTC

(In reply to Nate Graham from comment #1)
> Is this on X11? I don't recall seeing that OSD on Wayland, even when I use
> my convertible in a way that disables the touchpad and keyboard.

yep, is on wayland and also what happens when folding the screen might change a bit on different hardware (perhaps on yours it stops accepting touchpad events hardware-side but doesn't tell the system it has being disabled?)

Comment 3 FormularSumo 2024-08-29 23:12:55 UTC

Have been having this issue today a few times. When it does happen, I go back into tablet mode and then back to desktop the touchpad responds normally for around 5 seconds and then gets disabled again, best way to fix seems to be a restart.

I'm using an Asus Zenbook Flip (UP3404V), going into tablet mode by flipping the keyboard behind the display. Using KDE 6.1.4 on Wayland, latest KDE Neon User Edition