Bug 490576

Summary:	Wacom Cintiq 22HD still available despite being powered off
Product:	[Plasma] kwin	Reporter:	Nathan Upchurch <nathan>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	xaver.hugl
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	drm_info output

Description Nathan Upchurch 2024-07-20 18:03:28 UTC

SUMMARY
When a Wacom Cintiq 22HD is connected to my PC via USB, plasma behaves as though the display is available, even when it it powered off.

STEPS TO REPRODUCE
1. Attach Cintiq to PC via USB
2. When powered off, attempt to send a window to the display using super + left/right key

OBSERVED RESULT
Windows can still be sent to the display

EXPECTED RESULT
Windows and the mouse pointer cannot be sent to the display when powered off.

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.9.9-arch1-1 (64-bit)
Graphics Platform: Wayland

Comment 1 Zamundaaa 2024-08-02 12:20:01 UTC

Please attach the output of drm_info while the display is powered off

Comment 2 Nathan Upchurch 2024-08-02 13:32:07 UTC

Created attachment 172210 [details]
drm_info output

drm_info output attached

Comment 3 Zamundaaa 2024-08-02 14:11:55 UTC

Okay, the display still reports as being connected. This is quite common with for example TVs, and there's unfortunately nothing we can do about it :(

Comment 4 Nathan Upchurch 2024-08-02 14:43:02 UTC

(In reply to Zamundaaa from comment #3)
> Okay, the display still reports as being connected. This is quite common
> with for example TVs, and there's unfortunately nothing we can do about it :(

Understood; thanks for taking a look!