https://bugs.kde.org/show_bug.cgi?id=439478
--- Comment #20 from Nate Graham <n...@kde.org> --- There is no Plasma code involved so it can't be Plasma. There is code in qqc2-desktop-style involved, but I investigated that and there isn't really anything in there that could cause it. Another option is that it's a KWin problem, though this seems unlikely. Does the issue go away if you change your compositing method from OpenGL 3.1 to OpenGL 2.0? If not, then that leaves two possible culprits: - Qt - GPU drivers I suppose it could be a bug in Qt, rather than your GPU drivers. However either way, it's an upstream issue, and not something caused by Qt code. :) My hunch that it's a driver-related issue is because if it was a Qt issue, I would expect it to be much more widespread, but this is the first bug report I've seen about it. In my experience, esoteric and impossible-for-other-people-to-reproduce visual bugs in QtQuick components are always caused by GPU driver problems. So can you try switching to OpenGL 2.0 and seeing if that solves it? If so, it's a KWin issue. If not, It's almost certainly a GPU driver issue. -- You are receiving this mail because: You are watching all bug changes.