I have such a 20-nvidia.conf file in my xorg.conf.d directory, though it's simpler than that (basically just saying Driver "nvidia"). It used to work fine until my last system upgrade. I will try the file given on that page, but it has a few weird options:
Code:
Section "Device"
Identifier "Videocard0"
BusID "PCI:5:0:0"
Driver "nvidia"
VendorName "NVIDIA"
BoardName "nVidia Corporation Quadro FX 880M"
Option "CursorShadow" "on"
Option "RandRRotation" "on"
Option "OnDemandVBlankInterrupts" "on"
Option "Coolbits" "5"
Option "FlatPanelProperties" "Scaling = Native"
EndSection
For sure I'll have to remove the BusID line and I'm not sure I want the Coolbits.