(In reply to Stefan Dirsch from comment #8) > (In reply to Vit Pelcak from comment #4) > > Created attachment 799898 [details] > > Xorg.log > > > > X.org log after all content of /etc/X11/xorg.conf.d/50-device.conf was > > removed and modeset driver gets loaded. > > Looks good. Nothing obvious, but I would remove "intel_pstate=skylake_hwp" > form kernel options as well ... Done. Nothing has changed.