https://bugs.kde.org/show_bug.cgi?id=498556
Bug ID: 498556
Summary: Memory leak when external monitor is connected
Classification: Plasma
Product: kwin
Version: 6.2.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: dylanjess...@gmail.com
Target Milestone: ---
SUMMARY
Whenever I have an external monitor connected via HDMI (I'm using an Acer Nitro
5 an515-45), the process kwin-wayland slowly starts increasing memory usage.
Eventually, once all 16Gb of ram are filled, my system crawls to a halt as it
tries to move things into swap. Unplugging the monitor and plugging it back in
restores the ram usage to around 256 Mb.
STEPS TO REPRODUCE
1. Start kde wayland session with external monitor connected
2. Use computer normally for 4-5 hours
3. System significantly slows down until I unplug and replug the monitor
OBSERVED RESULT
Steady increase of ram usage from the kwin-wayland process, until all memory is
full.
EXPECTED RESULT
kwin-wayland process, staying roughly the same, not ballooning to use all
system resources
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.6.70-1-lts / 6.2.5
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
16Gb RAM, Ryzen 7 5800H, RTX 3060 mobile, eDP-1920x1080@144hz,
HDMI-1920x1080@75hz, Acer Nitro 5 an515-45
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