http://bugzilla.opensuse.org/show_bug.cgi?id=1154753 http://bugzilla.opensuse.org/show_bug.cgi?id=1154753#c2 --- Comment #2 from Elmar Stellnberger <estellnb@elstel.org> --- In deed this problem is related to a missing nouveau.hdmimhz=225. Without that kernel parameter Debian boots and shows the background screen but no icons and no mouse pointer appear. You can reboot with ctl+alt+del. If you boot openSUSE Leap 15.1 with this parameter then there are no problems with the display. You can also configure the external screen with 1920x0180 (4K needs special modelines). The problem seems to be that no safe hdmimhz setting is autodetected. As far as I have talked with kernel developers there is no safe way to detect the hdmimhz with nouveau cards so assuming a sufficiently conservative setting may help. -- You are receiving this mail because: You are on the CC list for the bug.