Comment 5 for bug 152544

With 7600GT and 2xApple 23" I see the same with the nv driver. With the restricted driver the configuration works perfectly when using nvidia-settings, saving the xorg.org without merging.

> I am speculating that nvidia doesn't write to the RandR format specification correctly.

This appears correct, output from nv driver (1:2.1.5-1ubuntu1):

Screen 0: minimum 640 x 480, current 1920 x 1200, maximum 1920 x 1200
default connected 1920x1200+0+0 0mm x 0mm
   1920x1200 60.0*
   1680x1050 60.0
   1600x1024 60.0
   1440x900 60.0
   1280x800 60.0
   1280x720 60.0
   1280x768 60.0
   800x600 60.0
   1600x1200 60.0
   1400x1050 60.0
   1280x1024 60.0
   1280x960 60.0
   1024x768 60.0
   640x480 60.0

Output from nvidia drivers (100.14.19+2.6.22.4-14.9):

Screen 0: minimum 800 x 600, current 1920 x 1200, maximum 1920 x 1200
default connected 1920x1200+0+0 0mm x 0mm
   1920x1200 50.0* 51.0 52.0
   1600x1200 53.0
   960x600 54.0
   800x600 55.0