Created attachment 774097 [details]
X server log

After a similar autoinstall with AutoYaST as Leap 42.3, Leap 15.0 does not
start gdm,

��� display-manager.service - X Display Manager
   Loaded: loaded (/usr/lib/systemd/system/display-manager.service; enabled;
vendor preset: enabled)
   Active: active (running) since Thu 2018-06-14 13:22:39 EDT; 25min ago
 Main PID: 1855 (gdm)
    Tasks: 3 (limit: 4915)
   CGroup: /system.slice/display-manager.service
           ������1855 /usr/sbin/gdm

 gdm[1855]: Child process -2033 was already dead.
 gdm[1855]: Child process 2023 was already dead.
 gdm[1855]: Unable to kill session worker process
 gdm[1855]: GdmDisplay: display lasted 0.879208 seconds
 gdm[1855]: Child process -2075 was already dead.
 gdm[1855]: Child process 2065 was already dead.
 gdm[1855]: Unable to kill session worker process
 gdm[1855]: GdmDisplay: display lasted 0.844312 seconds
 gdm[1855]: GdmLocalDisplayFactory: maximum number of X display failures
reached: check X server log for errors
 gdm[1855]: Child process -2118 was already dead.