As mentioned on IRC, kernel from comment #7 fixes it for me on raring with Intel Graphics Media Accelerator 4500MHD; xrandr output now correct and unconfused fb0, lightdm and desktop.
As mentioned on IRC, kernel from comment #7 fixes it for me on raring with Intel Graphics Media Accelerator 4500MHD; xrandr output now correct and unconfused fb0, lightdm and desktop.