SUMMARY If the panel is on top of screen (floating) and a maximixed app is launched, restored or a floating window is maximized, it causes the panel to de-float (expected) but the opened app stretches (or resizes) to go under the panel, then immediately corrects itself. I'll try to attach a link to a screen recording: https://imgur.com/a/eYvDS03 STEPS TO REPRODUCE 1. Set panel position to top of screen and make sure it's floating 2. Maximize a window, or launch/restore a maximized window. 3. The window gets maximized as the panel defloats, but the titlebar goes slightly under the panel itself. Then it jumps back to fit within the space below the panel. OBSERVED RESULT The maximized window over-resizes to be under the de-floated panel and corrects itself afterwards EXPECTED RESULT The window should only maximize until it touches the de-floated panel and not overshoot and bouce back SOFTWARE/OS VERSIONS Operating System: Fedora Linux 40 KDE Plasma Version: 6.1.3 KDE Frameworks Version: 6.4.0 Qt Version: 6.7.2 Kernel Version: 6.9.10-200.fc40.x86_64 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-6300U CPU @ 2.40GHz Memory: 11.1 GiB of RAM Graphics Processor: Mesa Intel® HD Graphics 520 Manufacturer: HP Product Name: HP ProBook 640 G2: ADDITIONAL INFORMATION Might be related to https://bugs.kde.org/show_bug.cgi?id=490958 Wasn't sure so created another separate report. Sorry for inconvenience.
This has been fixed by a big refactor of floating panel code in Plasma 6.2. Thanks for reporting it!
(In reply to Nate Graham from comment #1) > This has been fixed by a big refactor of floating panel code in Plasma 6.2. > Thanks for reporting it! I was about to file a bug report for this. Glad I found this one already. However, I must point out that this bug also happens when you switch from one desktop with top panel in floating state to an adjacent desktop which has maximized windows and the top panel is in defloated state. I hope this issue was also spotted and corrected. I have filed another bug report with an attachment where you can see a video demonstration of the issue and see if its a duplicate or additional relevant info. (bug report: https://bugs.kde.org/show_bug.cgi?id=492714)
*** Bug 492714 has been marked as a duplicate of this bug. ***