Created attachment 162021 [details] Example - very strong shadow SUMMARY With the floating panel on KDE Neon Unstable 20231001, there are weird artifacts on my machine that appear when it defloats. STEPS TO REPRODUCE 1. Have the floating panel enabled 2. Make it defloat by e.g. maximizing a window 3. Refloat it, e.g. by minimizing all windows. OBSERVED RESULT Weird artifacts like duplicate shadows or other residues left EXPECTED RESULT Panel looks normal SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.27.80 KDE Frameworks Version: 5.240.0 Qt Version: 6.6.0 ADDITIONAL INFORMATION Kernel Version: 6.2.0-33-generic Mesa Version: 23.0.4-0ubuntu1~22.04.1 GPU: Intel UHD Graphics 620 (KBL GT2) Graphics platform: Wayland
Created attachment 162022 [details] Other example - 'residue' below the floating panel I also tested this on X11, and there it does seem to work normally (apart from the relatively well-known white flickery artifacts during motion, that iirc aren't really solvable?)
I can confirm this happens on Wayland (using a VM)
Cannot reproduce on Wayland with that same GPU.
Still cannot reproduce. Can either of you folks reproduce it with today's git master?
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I haven't had the time yet to try again, but maybe it is specific to Neon unstable? It worked fine when running on Fedora, but the mentioned Neon ISO did seem to be affected. My guess is that it's due to Ubuntu LTS using an at this point quite old Mesa version. Probably best to try it again with the latest Neon ISO, but not sure when I have the time.
That's quite possible. In addition, a bunch of changes to de-floating behavior have gone in over the past few weeks, so I'd recommend re-testing.
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!