Bug 504427

Summary:	Touchpad can't be turned off on wayland but can be on X11
Product:	[Applications] systemsettings	Reporter:	berkan <berkan.atalay55>
Component:	kcm_touchpad	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	cwo.kde, duha.bugs, natalie_clarius, nate
Priority:	NOR	Keywords:	wayland-only
Version First Reported In:	5.27.5
Target Milestone:	---
Platform:	Debian stable
OS:	Linux
Latest Commit:		Version Fixed In:	6.0.0
Sentry Crash Report:

Description berkan 2025-05-17 17:01:55 UTC

SUMMARY
When using X11 Fn+f5 combo or the button like thing on touchpad can turn off and on the touchpad and popup appears correctly, but in Wayland, it always shows "Touchpad off" popup for a split second and turns back to "Touchpad on" popup but touchpad remains on always. Tried over settings tabs but no it remains on.

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux 12
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.0-35-amd64 (64-bit)
Graphics Platform: offscreen
Processors: 8 × Unknown Type, 8 × Intel® Core™ i7-10875H CPU @ 2.30GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics
Graphics Processor: Nvidia RTX 3060 Max-Q
 
ADDITIONAL INFORMATION
Host: TULPAR T7 V20.3 Standard

Comment 1 cwo 2025-05-18 20:26:05 UTC

Does it work if you disable it in System Settings > Touchpad?

Comment 2 berkan 2025-05-19 12:06:23 UTC

(In reply to cwo from comment #1)
> Does it work if you disable it in System Settings > Touchpad?
Yes, when remove the tick from "Device Enabled" from settings the Touchpad turns off but yet again if I enable it using the keyboard shortcuts it turns on and does the same error, which doesn't turn off again, shows only "Touchpad on" popup only.
Additional info: 
Resolution:1920x1080
What added or removed: Didn't add or remove any program about it.

Comment 3 cwo 2025-05-19 12:26:05 UTC

The shortcut triggers the following command:


dbus-send --type=method_call --print-reply --dest=org.kde.touchpad /modules/kded_touchpad org.kde.touchpad.disable


Can you try running this in a terminal and see if it works there, and/or whether there is an error message?

Comment 4 berkan 2025-05-19 16:19:20 UTC

(In reply to cwo from comment #3)
> The shortcut triggers the following command:
> 
> 
> dbus-send --type=method_call --print-reply --dest=org.kde.touchpad
> /modules/kded_touchpad org.kde.touchpad.disable
> 
> 
> Can you try running this in a terminal and see if it works there, and/or
> whether there is an error message?

When I try that command I get this: Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.kde.touchpad was not provided by any .service files

Comment 5 cwo 2025-05-19 16:22:35 UTC

(In reply to berkan from comment #4)
> When I try that command I get this: Error
> org.freedesktop.DBus.Error.ServiceUnknown: The name org.kde.touchpad was not
> provided by any .service files

Ah, I just noticed you're on Plasma 5.27. The way this works might have changed since then, and I don't have an old version accessible anymore. I doubt I can help you with that.

Comment 6 berkan 2025-05-19 16:43:56 UTC

(In reply to cwo from comment #5)
> (In reply to berkan from comment #4)
> > When I try that command I get this: Error
> > org.freedesktop.DBus.Error.ServiceUnknown: The name org.kde.touchpad was not
> > provided by any .service files
> 
> Ah, I just noticed you're on Plasma 5.27. The way this works might have
> changed since then, and I don't have an old version accessible anymore. I
> doubt I can help you with that.

Thanks anyways

Comment 7 Nate Graham 2025-05-19 18:35:15 UTC

This is all fixed in Plasma 6.