https://bugs.kde.org/show_bug.cgi?id=469272
Bug ID: 469272
Summary: Dimming affects laptop screen but not external
monitors
Classification: Plasma
Product: Powerdevil
Version: 5.27.4
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: kdeb...@tlcnet.info
CC: m...@ratijas.tk, natalie.clar...@kde.org
Target Milestone: ---
SUMMARY
Screen dimming is only applied to laptop display, not connected external
displays in Wayland, works in X11
STEPS TO REPRODUCE
1. In Settings - Energy Saving:
Set Dim Screen after 1 minute
Set Screen Energy Saving - switch off after 2 minutes
2. Wait 1 minute
OBSERVED RESULT
Only the laptop screen dims after one minute, monitors are at full brightness
All screens sleep at 2 minutes.
EXPECTED RESULT
All screens dim at the configured time and sleep at the configured time
SOFTWARE/OS VERSIONS
Operating System: Linux - Solus 4.3
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Kernel Version: 6.2.14-232.current (64-bit)
Graphics Platform: Wayland
Processors: 16 × 11th Gen Intel® Core™ i7-11800H @ 2.30GHz
Memory: 62.5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics
Manufacturer: Dell Inc.
Product Name: XPS 17 9710
ADDITIONAL INFORMATION
Screen dimming works as expected with X11
Setup: Laptop connected to 2 external displays using a Thunderbolt dock. One is
DisplayPort, the other HDMI
The DisplayPort display is set as Primary
Powerdevil is running
```
❯ pgrep -fla powerdevil
1288 /usr/lib64/kf5/org_kde_powerdevil
```
There's nothing from powerdevil in journalctl --since=-5m output, or any
errors.
I searched for other bugs, but didn't find anything that seemed to describe
this.
This is different from https://bugs.kde.org/show_bug.cgi?id=462695 in that all
displays are being put to sleep, but only the laptop display is being dimmed.
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