https://bugs.kde.org/show_bug.cgi?id=498543
Bug ID: 498543
Summary: Night light setting doesn't apply on second monitor
Classification: Plasma
Product: kwin
Version: git-stable-Plasma/6.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: night color
Assignee: kwin-bugs-n...@kde.org
Reporter: kostadinshishma...@protonmail.com
Target Milestone: ---
SUMMARY
On a fresh login, if you open the "Brightness and Colour" applet in the Panel
on the MAIN monitor, and enable/disable Night Light, the change won't be
reflected on the second monitor, unless you move the cursor outside of the
applet popup.
The bug can't be reproduced after some time of using the session, but I have no
idea what makes it go away.
STEPS TO REPRODUCE
1. Log in to a fresh KDE Plasma session
2. Enable/disable night light from the "Brightness and Colour" applet in the
Panel on the main monitor
3. Look at the second monitor - the night light setting change won't be
reflected
4. Move the cursor outside of the "Brightness and Colour" applet popup.
5. Change gets reflected on second monitor too.
OBSERVED RESULT
Night light getting enabled/disabled is observed on both monitors
EXPECTED RESULT
The night light change only gets observed on the main monitor until the cursor
is moved outside of the "Brightness and Colour" applet popup
SOFTWARE/OS VERSIONS
Operating System: Gentoo 2.17
KDE Plasma Version: 6.2.90
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.12.9-gentoo-dist (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 30.9 GiB of RAM
Graphics Processor: AMD Radeon RX 6800
ADDITIONAL INFORMATION
Main monitor is AOC 24G2SP 165Hz, secondary one is AOC 24G2 144Hz, both plugged
in using DisplayPort
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