Xorg configure unsupported card

[Tim Hawes]

I have NetBSD 6.1 installed on an ASUS laptop. The video card is an
NVIDIA GeForce GTX 560M, and is currently unsupported with xorg's nv
driver. I would like to get this working with the vesa driver, but have
come to a dead end with X -configure.

This is the Xorg.o.log: http://pastebin.com/Su60241w[1]
The output from running X -configure: http://pastebin.com/GLZYeBJq[2]
And the resulting xorg.conf.new file: http://pastebin.com/bsiMk7k2[3]

Didn't this used to automatically fall back to the vesa driver when
finding an unsupported card? Just changing nv to vesa in the xorg.conf
file does not seem to be enough.