I can also confirm that the kernel from comment #11 (3.8.0-13-generic 3.8.0-13.23~lp1156548v1) fixes it for me on raring with Intel Graphics Media Accelerator 4500MHD; xrandr output now correct and unconfused fb0, lightdm and desktop.
I can also confirm that the kernel from comment #11 (3.8.0-13-generic 3.8.0-13. 23~lp1156548v1) fixes it for me on raring with Intel Graphics Media Accelerator 4500MHD; xrandr output now correct and unconfused fb0, lightdm and desktop.