[kde] [Bug 508872] New: Display keeps getting engaged as 30-bit when it should be 24-bit

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=508872

            Bug ID: 508872
           Summary: Display keeps getting engaged as 30-bit when it should
                    be 24-bit
    Classification: I don't know
           Product: kde
      Version First unspecified
       Reported In:
          Platform: NixOS
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: EntranceJew at gmail.com
  Target Milestone: ---

Created attachment 184535
  --> https://bugs.kde.org/attachment.cgi?id=184535&action=edit
monitor OSD showing color settings

SUMMARY
KWin keeps engaging my monitors at 30-bit color instead of 24-bit color,
causing graphical instability. It happens on the DRM drivers, and the open
drivers.

STEPS TO REPRODUCE
1. set KWIN_DRM_PREFER_COLOR_DEPTH=24
2. that does not occur

OBSERVED RESULT
monitor shows 30-bit color, unlike on Windows

EXPECTED RESULT
monitor shows 24-bit color like on Windows

SOFTWARE/OS VERSIONS
Operating System: NixOS 25.05
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.1
Kernel Version: 6.12.43 (64-bit)
Graphics Platform: Wayland
Processors: 16 × 11th Gen Intel® Core™ i9-11900K @ 3.50GHz
Memory: 125.6 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3070 Ti

ADDITIONAL INFORMATION
https://gist.github.com/EntranceJew/006b8d2253aec9e2ba5d12e0a1e90cbf
https://github.com/entrancejew/dot-nix

-- 
You are receiving this mail because:
You are the assignee for the bug.