Created attachment 155347 [details] Screenshot before logout I can reproduce this with X11 and Wayland It is not a problem with Plasma 5.26.5 STEPS TO REPRODUCE 1. Place the panel at the bottom of the screen and place a desktop widget just above it (I put it just above the clock) 2. Logout and login OBSERVED RESULT The widget initially appears where it was at logout but when the panel appears, the widget moves up. EXPECTED RESULT Widget remains where you put it. SOFTWARE/OS VERSIONS Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.26.80 KDE Frameworks Version: 5.102.0 Qt Version: 5.15.8 Graphics Platform: Wayland or X11 ADDITIONAL INFORMATION Can reproduce with bottom and right panel, but not top or left Widgets move more and more each login
Created attachment 155348 [details] Screenshot after login
Can confirm on neon unstable.
Cannot reproduce on Wayland with that setup on current git master on Fedora 37.
I've looked into this and I know where it happens and why it happens, but I've not figured out yet how to avoid it without incurring on a hack and potentially worse behavior. Looking at the code, It should happen in both X11 and Wayland, but not 100% sure as I cannot test on Wayland right now. The issue is we store the widgets config with a key that matches the actual screen resolution. When the panel appears we launch a geometry changed, and try to relayout for the available size (screen minus the panel size). There we don't find a matching key for the new geometry, so a re-layout algorithm takes place as if it were a new geometry. The bug has probably come to surface when we started saving the new positions after loading (which is needed to avoid multiscreen problems)
It's no longer happening on neon unstable. Probably fixed by https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/2535
Can confirm that https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/2535 fixes the bug.
*** Bug 465383 has been marked as a duplicate of this bug. ***