Some hamburger submenus appear distorted like this – often much larger. It happens every time I open the menu, but it’s not always the same submenus. The problem fixes itself if I move to another submenu and back. After a problem submenu has been drawn correctly once, it will always be drawn correctly until I close and re-open the hamburger menu. Is this a known issue?
Very interesting. I don’t have exactly this issue, but I sometimes get similar distortion when I mouse over certain panel widgets (the Application Launcher, and the open application icons in the Icons-Only Task Manager). See screenshots below.
Also interestingly, my system info doesn’t have much in common with yours. I had assumed it was probably an Nvidia issue, but from seeing your issue with Intel iGPU, now I’m not so sure.
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.16.11-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5700X 8-Core Processor
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3060 Ti
