Hi Ilia, Just to follow up: I can work around the problem using this file: > cat /etc/X11/xorg.conf.d/90-monitor.conf Section "Monitor" Identifier "DP-1" Modeline "3840x2160" 533.25 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync Option "PreferredMode" "3840x2160" EndSection So it seems that everything works except detection of the monitor. Cheers, Klaus _______________________________________________ Nouveau mailing list Nouveau@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/nouveau