https://bugs.kde.org/show_bug.cgi?id=513809
Bug ID: 513809
Summary: Monitor dimming not restored after sleep
Classification: Plasma
Product: plasmashell
Version First 6.5.4
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 187974
--> https://bugs.kde.org/attachment.cgi?id=187974&action=edit
Logs
SUMMARY
Powerdevil dims all displays to 30% prior to sleep and randomly fails to
restore the dimming setting on secondary monitors when the system wakes. This
occurs on around half of wakes. Waiting for the idle timer to trigger a dimming
and then cancelling it with an input will restore brightness on all monitors.
This is a desktop system with 3 monitors connected, all to the discreet
graphics card. The primary monitor is an Alienware AW3423DW, the two
secondaries are both Asus VG248QE. The Alienware has HDR enabled, the other two
do not.
STEPS TO REPRODUCE
1. In System Settings -> Power Management, ensure Dim automatically is on
2. Wait for the system to sleep
3. Wake the system and log in
OBSERVED RESULT
Around half of the time, secondary monitors will retain a 30% dimming setting.
EXPECTED RESULT
Dimming value should be restored to 100% across all monitors.
SOFTWARE/OS VERSIONS
Below is the output of kinfo. Unsure why the 4090 is listed twice, there is
only one installed and I'd expect the second graphics processor to be the AMD
integrated one.
Operating System: Arch Linux
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.2-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor
Memory: 64 GiB of RAM (60.4 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 4090/PCIe/SSE2
Graphics Processor 2: NVIDIA GeForce RTX 4090/PCIe/SSE2
ADDITIONAL INFORMATION
This bug has existed since at least plasma version 6.5.2 - the earliest version
I tried
powerdevil logs & kscreen-doctor output included in attachments
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