Created attachment 185699 [details] Demo of the problem. SUMMARY When right clicking (opening the context menu) on processes, the menu will appear in the incorrect position, offset down and right to the mouse. This doesn't affect all context menus, for example right clicking on the graph will produce a correctly positioned menu. STEPS TO REPRODUCE 1. Open system monitor 2. Right click on a process OBSERVED RESULT Context menu is in the lower right corner of the window EXPECTED RESULT Context menu should appear next to mouse SOFTWARE/OS VERSIONS Operating System: CachyOS Linux KDE Plasma Version: 6.4.5 KDE Frameworks Version: 6.18.0 Qt Version: 6.10.0 Kernel Version: 6.17.1-2-cachyos (64-bit) Graphics Platform: Wayland Graphics Processor 1: NVIDIA GeForce RTX 4070 Ti SUPER Graphics Processor 2: AMD Radeon Graphics ADDITIONAL INFORMATION This is a dual monitor setup at 150% scaling. I tried turning desktop scaling down to 100% and restarting system monitor but observed the same results.
Can reproduce with Qt 6.10 and a multi-monitor system when the window on the right-most screen. Does not seem to be affected by which screen is primary, or any of the screens' scale factors. According to Bug 502715, it looks like this issue — or a very similar one — was supposed to be fixed in Qt 6.10. So it's not fixed, or it was fixed but later regressed, or else this issue is subtly different and has a different root cause.