Bug 497465 - When an external monitor is connected, the laptop screen will become randomly disabled
Summary: When an external monitor is connected, the laptop screen will become randomly...
Status: REPORTED
Alias: None
Product: kwin
Classification: Plasma
Component: multi-screen (show other bugs)
Version: 6.2.4
Platform: openSUSE Linux
: NOR major
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: multiscreen
Depends on:
Blocks:
 
Reported: 2024-12-14 16:08 UTC by aronkvh
Modified: 2025-03-30 21:30 UTC (History)
3 users (show)

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Description aronkvh 2024-12-14 16:08:16 UTC 
When a monitor is plugged in (HMD wired to NVIDIA GPU, 1920x1080), and plasma auto-locks, the internal laptop screen will sometimes become disabled. Restarting KWin doesn't help. In the KCM the laptop screen still shows, but it's completely  black the mouse cursor can't move to it. I tried reproducing but seems random. The only thing common is that it happens after plasma is unlocked from a screen lock.

System info:
Operating System: openSUSE Tumbleweed 20241211
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel Version: 6.11.8-1-default (64-bit)
Graphics Platform: Wayland
Processors: 16 × 13th Gen Intel® Core™ i7-13620H
Graphics Processor: Mesa Intel® Graphics
Manufacturer: SLIMBOOK
Product Name: HERO-RPL-RTX

Additional info:
Seems related to [{{bug|461428}}
Comment 1 aronkvh 2025-02-01 13:29:31 UTC 
This also happens on Fedora 41 with Plasma 6.2.5, now logging out doesn't solve it either, but a reboot does
Comment 2 aronkvh 2025-03-30 21:30:14 UTC 
This log entry might be relevant?

kwin_scene_opengl: 0x2: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)