https://bugs.kde.org/show_bug.cgi?id=340489
--- Comment #39 from Filip <tyx...@gmail.com> --- The output of the "tr '\0' '\n' < /proc/`pidof kwin_x11`/environ | grep KWIN" command is: KWIN_USE_BUFFER_AGE=0 KWIN_EXPLICIT_SYNC=0 Here is the kwin support information output: https://paste.kde.org/plzsdobvz/kjb7lq Hmm, I had not considered TearFree as the suspect, but I will now turn it off, set kwin's tearing prevention to Automatic and try to see if the glitches will appear. The reason why I didn't think it was AMD was: 1) no glitches in KDE 4 with TearFree on; 2) no glitches in XFCE with kwin and TearFree; 3) fiddling with kwin's options made them go away sometimes; 4) I think I remember seeing those exact glitches in a live Kubuntu image with Plasma 5.1, which definitely had open source AMD drivers (but can't be 100% sure, of course). Puzzling. I'm not exactly sure why I even switched to TearFree way back in KDE 4, but I think might have experienced a rare case of tearing that made me do it. Anyway, I will report back if I've experienced the glitching. Unfortunately with TearFree off, tearing now appears in Xonotic regardless of the in-game Vsync option being turned on, but that is a much more preferable situation than experiencing workspace glitches, however, still not ideal since it seems like TearFree works ok with KDE 4 and XFCE. Thanks for the quick reply and the Shift+Alt+F12 tip! -- You are receiving this mail because: You are watching all bug changes.
