Bug 510748

Summary:	Unable to enable HDR in projector
Product:	[Plasma] kwin	Reporter:	dougg0k
Component:	colour-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	xaver.hugl
Priority:	NOR
Version First Reported In:	6.4.5
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description dougg0k 2025-10-18 13:17:01 UTC

SUMMARY
When I try to enable HDR in the screen, it hangs for a few seconds and returns the error - applying config failed! The driver rejected the output configuration

STEPS TO REPRODUCE
1. Try to enable HDR.

OBSERVED RESULT
Hangs for a few seconds and returns with an error.

EXPECTED RESULT
To work, as it have for other screens.


SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0

ADDITIONAL INFORMATION
https://www.dropbox.com/scl/fi/3fmv5sybtvnb5m6v2s2we/2025-10-18_10-12-18.mp4?rlkey=7zhq76q0p30gg5pug2jeu9bkl&st=e3pttjwl&dl=0

I see many of this in the logs, not sure if related. Could be, because there is no other reason.

kwin_wayland[2335]: 0x502: GL_INVALID_OPERATION error generated. <image> and <target> are incompatible
kwin_wayland[2335]: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
kwin_wayland[2335]: Checking test buffer failed!
kwin_wayland[2335]: The main thread was hanging temporarily!

Comment 1 Zamundaaa 2025-10-18 13:40:22 UTC

Please report this to your driver vendor. Judging by the warnings I assume this is NVidia, so you can report it at https://forums.developer.nvidia.com/c/gpu-graphics/linux