(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 ...