Originally Posted by thefirstm
You might want to check on PowerMizer to see what it is doing while you get the tearing. With my card, compositors will tear horribly unless the GPU is in its highest performance mode, which is induced by launching an OpenGL application.
Thanks, i changed the preferred mode to maximum performance and it actually seems to be helping somehow.
But i just realized that if i run glxgears the kwin fps plugin reports ~30 fps while
the output of glxgears reports ~300 frames per 5 seconds (~60fps) that makes me think that kwins vsync and
nvidias vsync dont get along.