https://bugs.kde.org/show_bug.cgi?id=498553
Bug ID: 498553
Summary: Windows get resized when turning on multiple monitors
Classification: Plasma
Product: kwin
Version: git-stable-Plasma/6.2
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
Some windows get resized when turning on all monitors after leaving both
monitors off for some time.
STEPS TO REPRODUCE
1. Connect two monitors via DP (secondary) and HDMI (primary)
2. Start a Qt app (e.g. KeePassXC) and a GTK app (e.g. Firefox / Thunderbird)
3. Turn off both monitors
4. Wait
5. Turn on both monitors
OBSERVED RESULT
KeePassXC is resized. Usually smaller than before.
Firefox, Thunderbird keep previous size.
EXPECTED RESULT
All windows keep their size.
WORKAROUND
Use a KWin script to resize windows to their expected size.
SOFTWARE/OS VERSIONS
Operating System: NixOS 24.11
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.6.69 (64-bit)
Graphics Platform: X11
Graphics Processor: AMD Radeon RX 5600 XT
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7C37
System Version: 3.0
ADDITIONAL INFORMATION
Related KDE Discuss thread:
https://discuss.kde.org/t/some-windows-resize-when-i-turn-on-off-a-second-monitor/25220
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