(In reply to Stefan Dirsch from comment #16) > (In reply to Michael Hirmke from comment #5) > > Created attachment 803069 [details] > > Xorg.log.old > > > [ 56198.420] (EE) modeset(0): failed to set mode: Invalid argument > This reminds me to boo#1129027 This doesn't look promising - as you wrote there, the problem was never addressed.