https://bugs.kde.org/show_bug.cgi?id=448220
--- Comment #47 from Zamundaaa <xaver.h...@gmail.com> --- I did find another difference, which is that the maximum bit depth the driver is allowed to use was set to 8 in the broken session, instead of 16. I doubt that it's the cause of your problems as it's what's used on Xorg as well, but it should be fixed anyways. Are the outputs consistently on CRTC 2 and 3 in the broken session? In your older logs there wasn't a failed test commit but here definitely at least one happened, which causes KWin to try other crtcs, which in turn may cause a driver bug or something... -- You are receiving this mail because: You are watching all bug changes.