https://bugs.kde.org/show_bug.cgi?id=499034
Bug ID: 499034
Summary: New account on Wayland session with Display Port sets
monitor brightness to 100%
Classification: Plasma
Product: plasmashell
Version: 6.2.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Power management & brightness
Assignee: plasma-b...@kde.org
Reporter: amdfa...@gmail.com
Target Milestone: 1.0
SUMMARY
- Creating a new account on KDE and using the Wayland session will result in
your monitor's brightness being set to 100%, not respecting the monitor's
existing brightness setting. The problem doesn't seem to exist on the X11
session. I first noticed this with OpenSUSE, which uses X11 by default. In the
X11 session, my monitors' brightness level remained at their initial values.
When I tried switching to the Wayland session, both monitors immediately were
set to 100% brightness.
A fresh install of Fedora KDE Edition also resulted in the same behavior.
Fedora KDE uses Wayland by default, and upon first login, both monitors were
immediately set to 100% brightness.
Once you set your brightness to the desired level, it remembers it. However
creating a new account will result in 100% brightness again.
STEPS TO REPRODUCE
1. Create new account on KDE
2. Log into new account using Wayland with a Display Port monitor
OBSERVED RESULT
Monitor's brightness will automatically get set to 100%, regardless of what the
prior brightness setting was.
EXPECTED RESULT
Monitor's brightness should remain what its original value was
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 41/OpenSUSE Tumbleweed
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
Pixio PX275h monitors connected via Display Port
Radeon 5700XT
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