https://bugs.kde.org/show_bug.cgi?id=452492
Bug ID: 452492
Summary: external screen brightness is not restored after
wakeup
Product: kwin
Version: 5.24.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: j...@vandenoever.info
Target Milestone: ---
Flags: Wayland+, Intel+
SUMMARY
***
When the external monitor is set to turn off after a certain time of no
activity, the brightness is not fully restored after wakeup. The brightness can
be fixed with the the keyboard brightness buttons or with `ddcutil setvsp 10 +
65535`.
***
STEPS TO REPRODUCE
1. run wayland session with dbus-run-session startplasma-wayland
2. set 'Screen energy savings' to 'Switch off after 3 min', press 'Apply'
3. wait 3 minutes until screen turns off
4. awaken screen by doing user input on keyboard
OBSERVED RESULT
The external monitor is on lowest brightness setting.
EXPECTED RESULT
The external monitor is on the same brightness as before it went to sleep.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Linux Kernel: 5.15.30
Graphics platform: Wayland
ADDITIONAL INFORMATION
The graphics is embedded Intel graphics UHD Graphics 620. The monitor is LG
connected via USB-C for display and power to the laptop. The laptop screen and
the external monitor are active. Only the laptop monitor is restored to the
initial brightness.
Related bug: https://bugs.kde.org/show_bug.cgi?id=423457
--
You are receiving this mail because:
You are watching all bug changes.
