Methu cychwyn y gweinydd X (eich rhyngwyneb graffigol). Mae'n debygol nad yw e wedi ei gyflunio'n gywir. A hoffech weld allbwn y gweinydd X er mwyn dadansoddi'r broblem?
Failed to start the X server (your graphical interface). It is likely that it is not set up correctly. Would you like to view the X server output to diagnose the problem?