Bug 502621 - Night light make games too warm in gamescope with --hdr-itm-enabled
Summary: Night light make games too warm in gamescope with --hdr-itm-enabled
Status: REPORTED
Alias: None
Product: kwin
Classification: Plasma
Component: colour-management (other bugs)
Version First Reported In: 6.3.4
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-04-09 16:35 UTC by Oleg
Modified: 2025-04-11 20:30 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
Night Light, gamescope and --hdr-itm-enabled (1.12 MB, image/jpeg)
2025-04-09 16:35 UTC, Oleg
Details
Nigh LIgh (1.39 MB, image/jpeg)
2025-04-09 16:35 UTC, Oleg
Details
Windowed vkcube (2.62 MB, video/mp4)
2025-04-09 16:47 UTC, Oleg
Details

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Description Oleg 2025-04-09 16:35:15 UTC
Created attachment 180125 [details]
Night Light, gamescope and --hdr-itm-enabled

SUMMARY
When using Nigh Light, Gamescope and --hdr-itm-enabled (kind AutoHDR) games become too warm. No such issue without Nigh Light or without --hdr-itm-enabled
There was no such issue on Plasma 6.2

STEPS TO REPRODUCE
1. Run any game with gamescope --hdr-enabled --hdr-itm-enabled -f 

OBSERVED RESULT
Games will become too warm

EXPECTED RESULT
Night light shouldn't be so intense

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 Oleg 2025-04-09 16:35:51 UTC
Created attachment 180126 [details]
Nigh LIgh
Comment 2 Oleg 2025-04-09 16:36:51 UTC
Comment on attachment 180126 [details]
Nigh LIgh

Night Light, Gamescope and no --hdr-itm-enabled
Also, forgot my system info:
Operating System: Arch Linux 
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.9.0
Kernel Version: 6.14.1-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor
Memory: 62.5 ГиБ of RAM
Graphics Processor: AMD Radeon RX 6700 XT
Manufacturer: ASUS
Comment 3 Oleg 2025-04-09 16:47:06 UTC
Created attachment 180127 [details]
Windowed vkcube

Here's another, more obvious demonstration
Comment 4 Zamundaaa 2025-04-11 20:30:35 UTC
As it only happens with gamescope itm and only on Plasma 6.3, I suspect that gamescope gets confused about the changed whitepoint.

I can't reproduce the bug though, it looks normal in all cases, so it's difficult to investigate further than that guess.