Bug 496191

Summary:	Display configuration reverts and HDR cannot be enabled
Product:	[Plasma] kwin	Reporter:	jsilva <jpsjoaosilva98>
Component:	colour-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	nate, xaver.hugl
Priority:	NOR
Version First Reported In:	6.2.3
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Observed error

Description jsilva 2024-11-12 20:53:24 UTC

Created attachment 175770 [details]
Observed error

SUMMARY
Can't enable HDR in plasma 6.2.3.

STEPS TO REPRODUCE
1. System Settings -> Display & Monitor -> Click enable HDR

OBSERVED RESULT
Kwin freezes for a while until it allows mouse movement and displays a notification saying "Display configuration reverted." HDR is not enabled.

EXPECTED RESULT
HDR is enabled on the monitor selected.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 41
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0

ADDITIONAL INFORMATION
Kernel: 6.11.7-300.fc41.x86_64 (64-bit)
GPU: AMD Radeon RX 7700 XT
Monitor: Gigabyte M34WQ (https://www.gigabyte.com/Monitor/M34WQ#kf)

Comment 1 TheFeelTrain 2024-11-13 21:30:43 UTC

I think I have the same problem but on Nvidia. Do you see these in your journalctl when you try to enable HDR?

nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_wayland_drm: Checking test buffer failed!
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: 0x502: GL_INVALID_OPERATION error generated. <image> and <target> are incompatible
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: 0x502: GL_INVALID_OPERATION error generated. <image> and <target> are incompatible
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: 0x502: GL_INVALID_OPERATION error generated. <image> and <target> are incompatible
nov 13 22:13:03 archlinux kwin_wayland[843]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"

Also does using these work for you? They do not for me.
kscreen-doctor output.1.wcg.enable
kscreen-doctor output.1.hdr.enable

Comment 2 Zamundaaa 2024-11-14 16:37:08 UTC

Drivers by default unfortunately don't give out any information on why enabling things fails. Could you try to follow the instructions at https://invent.kde.org/plasma/kwin/-/wikis/Debugging-DRM-issues to get drm debug logging for when you try to enable HDR?

Comment 3 TheFeelTrain 2024-11-17 16:58:38 UTC

For me it just ended up being a hardware issue. Unplugged and replugged the DisplayPort cable and now it works.

Comment 4 Bug Janitor Service 2024-12-02 03:46:23 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 5 Bug Janitor Service 2024-12-17 03:46:49 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.