https://bugs.kde.org/show_bug.cgi?id=494128
Bug ID: 494128
Summary: Black level is elevated when HDR is enabled.
Classification: Plasma
Product: kwin
Version: 6.1.90
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: colour-management
Assignee: kwin-bugs-n...@kde.org
Reporter: lojcs...@gmail.com
Target Milestone: ---
SUMMARY
Black level is elevated when HDR is enabled.
STEPS TO REPRODUCE
1. Install kwin 6.1.90-1
2. Enable hdr.
3. Open a black sdr image in any app or a black hdr video in mpv.
4. It's gray.
OBSERVED RESULT
Blacks show up as a dark tone of gray.
EXPECTED RESULT
Blacks are black
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.1.90
KDE Frameworks Version: 6.6.0
Qt Version: 6.8.0
Kernel Version: 6.10.10-arch1-1 (64-bit)
ADDITIONAL INFORMATION
This doesn't happen if I downgrade kwin to 6.1.5-2. Monitor connected to amd
igpu via dp. Tried enabling hdr without wcg with kscreen-doctor, the issue
remains. Doesn't happen with hdr disabled.
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