https://bugs.kde.org/show_bug.cgi?id=450172
Bug ID: 450172
Summary: RGB range setting resets to "automatic" when the
monitor is plugged in
Product: KScreen
Version: 5.24.0
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kded
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
It is very similar to Bug 442520 (not sure if it is a duplicate).
SUMMARY
I am using a laptop with an external monitor. Its RGB range should be "full"
but is incorrectly detected by the automatic algorithm of the Intel driver.
I can set the correct RGB range in the Display settings (Wayland).
But every time I plug back the monitor, the RGB range resets to "automatic".
STEPS TO REPRODUCE
1. plug an external hdmi monitor
2. set its RGB range to "full" in the Display settings
3. unplug the monitor
4. plug in the monitor
OBSERVED RESULT
The RGB range "full" is not applied (low contrast image in my case), and the
option is set to "automatic" if I open the Display settings.
EXPECTED RESULT
The RGB range "full" should be applied.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon unstable (neon-unstable-20220206-2353.iso)
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
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