https://bugs.kde.org/show_bug.cgi?id=511054
Bug ID: 511054
Summary: DDC/CI brightness is not working when HDR is enabled
Classification: Plasma
Product: plasmashell
Version First 6.4.5
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
SUMMARY
Brightness is managed by software when HDR is enabled even if DDC/CI checkbox
is checked.
STEPS TO REPRODUCE
1. Make sure monitor supports DDC/CI brightness control (also in HDR mode).
2. Turn on HDR and make sure "Control hardware brightness with DDC/CI" is
enabled.
3. Change brightness and press "Apply".
OBSERVED RESULT
Monitor hardware brightness is not changed, brightness is changed in kwin
compositor only.
EXPECTED RESULT
Monitor hardware brightness is changed according to the slider (because it's
supported) and software brightness is set to 100%.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19
Qt Version: 6.10
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