Created attachment 179935 [details] Screencast of the glitch SUMMARY When hovering over the items in a directory in the file open dialog, elements under the mouse pointer "move" slightly, like in some sort of "depression" animation. STEPS TO REPRODUCE 1. Launch an app that uses the file open dialog 2. Browse a directory 3. Hover over elements OBSERVED RESULT Items that are hovered over show a slight displacement. EXPECTED RESULT Items that are hovered over stay still. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 41 KDE Plasma Version: 6.3.3 KDE Frameworks Version: 6.12.0 Qt Version: 6.8.2 Kernel Version: 6.13.7-200.fc41.x86_64 (64-bit) Graphics Platform: Wayland Processors: 14 × Intel® Core™ Ultra 5 125U Memory: 15.1 GiB of RAM Graphics Processor: Mesa Intel® Graphics Manufacturer: LENOVO Product Name: 21MMS7CK00 System Version: ThinkPad T14 Gen 5 ADDITIONAL INFORMATION - Using Wayland with fractional scaling. - The app that calls the open dialog is a Flatpak app. - Have observed this on different systems with different graphics/display configurations.
Can confirm that: - the issue does not depend on the application invoking the dialog being a Flatpak (can reproduce from KDE system settings) - the issue does not depend on GPU (Intel Graphics and discrete AMD result in the same behaviour)
Can reproduce.
*** Bug 504186 has been marked as a duplicate of this bug. ***
*** Bug 506318 has been marked as a duplicate of this bug. ***
Seems to be from the (now outdated?) painting strategies: https://invent.kde.org/frameworks/kio/-/blob/5ac54c685ca8edc78ca6f7c1d7f6b657635eea8a/src/widgets/kfileitemdelegate.cpp#L1116 Actually found a related MR https://invent.kde.org/frameworks/kio/-/merge_requests/1960 but the issue is still present in git master, hmm.