https://bugs.kde.org/show_bug.cgi?id=506708
Bug ID: 506708
Summary: When using TTY to manually set screen brightness (e.g.
via /sys/class/backlight/amdgpu_bl1/brightness), the
value is reset to maximum brightness upon logging into
KDE Plasma Wayland session.
Classification: Plasma
Product: plasmashell
Version First 6.4.1
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
STEPS TO REPRODUCE
1. Switch to TTY
2. Set brightness manually:
echo 50 | sudo tee /sys/class/backlight/amdgpu_bl1/brightness
3. Log in to KDE Wayland session
OBSERVED RESULT
Brightness is reset to maximum value (255)
EXPECTED RESULT
Either:
- KDE should respect the brightness set before login
or
- Provide an option to disable automatic brightness restoration
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