https://bugs.kde.org/show_bug.cgi?id=523988
Bug ID: 523988
Summary: Display remains stuck on dimmed gamma/DPMS state after
sleep due to Wayland socket disconnect in PowerDevil
Classification: Plasma
Product: plasmashell
Version First master
Reported In:
Platform: EndeavourOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Power management & brightness
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 194957
--> https://bugs.kde.org/attachment.cgi?id=194957&action=edit
Power Management Settings Screenshot
DESCRIPTION
The screen remains stuck on an extremely dim state after waking up, but ONLY
when the system enters sleep/display power down via PowerDevil's automatic idle
timer.
If the system is put to sleep manually (via GUI, lock screen, or running
`systemctl suspend`), waking up works perfectly with normal screen brightness.
Modifying brightness controls after the bug occurs does nothing until
restarting the compositor via `kwin_wayland --replace > /dev/null 2>&1 &`.
STEPS TO REPRODUCE
1. In System Settings -> Power Management, under Suspend Session, When
inactive, Sleep , After 45 minutes(Never tried with shorter time but it always
happens with 45mins). More settings that could be useful Under Display and
Brightness, Dim automatically is set to 10 min, Turn off screen is set to
15min and when locked is set to 15sec
2. Do not interact with the PC and allow the idle timer to put the
screen/system to sleep automatically.
3. Wake the system using keyboard or mouse input.
OBSERVED RESULT
The screen wakes up but remains stuck in PowerDevil's dimmed state. Brightness
controls have no effect. Running `kwin_wayland --replace` immediately restores
full display brightness and control.
EXPECTED RESULT
Display brightness should return to normal active levels regardless of whether
sleep was triggered manually or by the idle timer.
SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 6.7.3
KDE Frameworks Version: 6.28.0
Qt Version: 6.11.1
Kernel Version: 7.1.5-arch1-2 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X3D 8-Core Processor
Memory: 32 GiB of RAM (31.2 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3080
ADDITIONAL INFORMATION
Running "systemctl --user status plasma-powerdevil.service" outputs this:
Aug 07 18:53:19 wael-amigo org_kde_powerdevil[1041]: [ 1041] Unquiescing
libddcutil API...
Aug 07 18:53:19 wael-amigo org_kde_powerdevil[1041]: [ 10836][15123.136578]
Recheck interval: Sleeping for 200 milliseconds
Aug 07 18:53:19 wael-amigo org_kde_powerdevil[1041]: [ 1041][15123.136591]
(ddca_get_display_refs) Returned DDCA_Display_Ref lis>
Aug 07 18:53:19 wael-amigo org_kde_powerdevil[1041]: [ 1041][15123.136606]
DDCA_Display_Ref Display_Ref[8:bus /dev/i2c-4 @0x7>
Aug 07 18:53:20 wael-amigo org_kde_powerdevil[1041]: There are no outputs -
creating placeholder screen
Aug 07 18:53:20 wael-amigo org_kde_powerdevil[1041]: The Wayland connection
broke. Did the Wayland compositor die?
Aug 07 18:53:20 wael-amigo org_kde_powerdevil[1041]: Attempting wayland
reconnect
Aug 07 18:53:20 wael-amigo org_kde_powerdevil[1041]: Failed to write to the
pipe: Bad file descriptor.
Aug 07 18:53:51 wael-amigo org_kde_powerdevil[1041]:
org.kde.powerdevil.chargethresholdhelper.getconservationmode failed "Battery>
Aug 07 18:53:51 wael-amigo org_kde_powerdevil[1041]:
org.kde.powerdevil.chargethresholdhelper.getconservationmode failed "Battery>
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