https://bugs.kde.org/show_bug.cgi?id=480367
--- Comment #6 from Marcel Hasler <mahas...@gmail.com> --- I investigated this issue a bit further and at least in my case, running under X11, it turned out to be related to TearFree rendering. Without any custom configuration in place, i.e. 'xrandr --props' reports 'TearFree: auto', I get the behavior as described above. As I understand it, since I don't have any scaling or rotation enabled, this means TearFree is actually disabled. If I temporarily enable TearFree with 'xrandr --output eDP --set TearFree on', the problem goes away immediately and the FPS counter shows approx. 120 Hz, as expected. If I disable it again the problem returns just as before with the FPS capped to 60 Hz. What's even stranger is that if I suspend my laptop just once with TearFree on, the problem goes away permanently, even if I then disable it again, at least until I log out and back in. So the solution for me is to enable TearFree permanently by creating a configuration file /etc/X11/xorg.conf.d/20-amdgpu.conf with 'Option "TearFree" "true"'. -- You are receiving this mail because: You are watching all bug changes.
