Comment 6 for bug 561738

Same situation here on motherboard ASUS M3N78-VM with Mythbuntu 10.04 (incl all updates).
Kernel message at startup: nForce2_smbus 0000:00:01.1: Error probing SMB2.

Is tihs a reason, that Nvidia nouveau does not work either, various Xorg.confs tested.
 Always get a: "Failed to initialize the NVIDIA gaphics device"

Xorg.1.log in VESA / failsafe mode: Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

Attaching Xorg.0.log