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
[BRIEF] I have encountered the same problem. Unplugging and re-plugging the HDMI cable instantaneously reverts the RAM usage from about 99% to 45%. It's as dylanjesse said, RAM usage increases as time goes on until system is out of memory and crashes. [INFO] Operating System: Fedora Linux 41 KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.1 Kernel Version: 6.12.10-200.fc41.x86_64 (64-bit) Graphics Platform: Wayland Processors: 8 × AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx Memory: 17.4 GB of RAM Graphics Processor: AMD Radeon Vega 8 Graphics Manufacturer: HP Product Name: HP Pavilion Gaming Laptop 15
*** This bug has been marked as a duplicate of bug 496469 ***