Comment # 2 on bug 995924 from Bj�rn Lie

So I reproduced what reporter is saying here, but I will still set this to
xorg-team, as removing "distro built" driver, and installing the exact same
driver "the hard way" gave working gdm.

Look at this snippet from xorg log when using distro driver:

sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):
NVIDIA GPU GeForce GT 730 (GK208) at PCI:1:0:0 (GPU-0)
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (--) NVIDIA(0):
Memory: 2097152 kBytes
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (--) NVIDIA(0):
VideoBIOS: 80.28.78.00.13
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):
Detected PCI Express Link width: 8X
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):
Validated MetaModes:
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
"NULL"
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):
Virtual screen size determined to be 640 x 480
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (WW) NVIDIA(0):
Unable to get display device for DPI computation.
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (==) NVIDIA(0): DPI
set to (75, 75); computed from built-in default
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) UnloadModule:
"modesetting"
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) Unloading
modesetting
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (--) Depth 24 pixmap
format is 32 bpp
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA: Using
12288.00 MB of virtual memory for indirect memory
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA:    
access.
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0): ACPI:
failed to connect to the ACPI event daemon; the daemon
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
may not be running or the "AcpidSocketPath" X
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
configuration option may not be set correctly.  When the
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
ACPI event daemon is available, the NVIDIA X driver will
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
try to use it to receive ACPI event notifications.  For
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
details, please see the "ConnectToAcpid" and
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
"AcpidSocketPath" X configuration options in Appendix B: X
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):    
Config Options in the README.
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (II) NVIDIA(0):
Setting mode "NULL"
sep. 12 14:22:25 haldis /usr/lib/gdm/gdm-x-session[1210]: (==) NVIDIA(0):
Disabling shared memory pixmaps


Setting mode "NULL" -> that can't lead anywhere good :-)


Note that I'm not saying that gdm/mutter is guilt free here, but since they do
work when using nvidia driver "directly" I think it's right to move it the bug.