Created attachment 134772 [details] Screenshot (a): Bottom edge aligned SUMMARY This bug is about X11 only. There are two monitors: 2560x1440 on 14" and next to it a 3840x2560 on 27", both scaled 2x. If the two top edges of the two monitors are aligned in KScreen KCM, everything works as expected. However, once the smaller screen on the left becomes vertically shifted downwards in KScreen KCM, maximized windows move downwards as well. I.e. it becomes impossible to place windows above a certain screen height respectively maximized apps won't cover the whole screen anymore but part of their windows will be below the actual screen. In the first screenshot (a), the smaller screen was moved downwards, so that the two bottom edges align and maximized Dolphin demonstrates the issue. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2
Created attachment 134774 [details] Screenshot (b): Panel on bottom, bottom aligned In the post before, the panel was on top of the screen. I then tried to study the effect what happens if the panel is on the bottom. You can see that whole drawn screen shifts upwards: Not only in the screenshot but also on the actual screen the part below the panel was black. Additionally, the maximized Dolphin window did no longer cover the whole screen modulo the panel.
Created attachment 134775 [details] Screenshot (c): Panel on top, aligned on top edges Finally, coming from the second post, where the panel was on the bottom + the two bottom screen edges were aligned in KScreen KCM: The panel was moved to the top edge again and then two screens were aligned on their top edges. You can see that half of the panel forgot to move upwards now. :)