https://bugs.kde.org/show_bug.cgi?id=356479
--- Comment #70 from nicholas <ndcunli...@gmail.com> --- Glad you found the patch. Just thinking of alternate approach to identify the source of this: 1. someone who knows QT writes a small app containing spinner. 2. spinner can now be triggered in a controlled manner, we can test the effect of controlling parameters. 3. uses on different systems can compare behaviour in a quantitative manner 4. push this back up through KDE/QT to find the source of the issue. At a guess i assume it is something relatively simple like excessive/duplicate screen updates -- You are receiving this mail because: You are watching all bug changes.