Sometimes it finds the displays, and sometimes it does not. Uploading two Xorg.0 log files from /var/lib/gdm3/.local/share/xorg/ One from before stopping gdm, running Xorg as root, stopping Xorg as root and then restarting gdm. The first one finds no displays:
+(II) NVIDIA(0): "NULL"
+(II) NVIDIA(0): Virtual screen size determined to be 640 x 480
+(WW) NVIDIA(0): Unable to get display device for DPI computation.
+(==) NVIDIA(0): DPI set to (75, 75); computed from built-in default
Sometimes it finds the displays, and sometimes it does not. Uploading two Xorg.0 log files from /var/lib/ gdm3/.local/ share/xorg/ One from before stopping gdm, running Xorg as root, stopping Xorg as root and then restarting gdm. The first one finds no displays:
+(II) NVIDIA(0): "NULL"
+(II) NVIDIA(0): Virtual screen size determined to be 640 x 480
+(WW) NVIDIA(0): Unable to get display device for DPI computation.
+(==) NVIDIA(0): DPI set to (75, 75); computed from built-in default
Where as the second gets:
-(--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
-(--) NVIDIA(0): DFP-1.1
-(--) NVIDIA(0): DFP-1.2
-(--) NVIDIA(0): DFP-1.3
-(--) NVIDIA(0): DFP-0
-(--) NVIDIA(0): DFP-1 (boot)