Comment 31 for bug 348560

Hi Jane,

Looks like you just have a configuration error. Your xorg.conf is set up to allow a 1280X1792 maximum combined resolution. However, your laptop permits up to 1920x1440 and your external monitor supports up to 1920x1200.

I would recommend updating your xorg.conf to the following if you wish mirrored displays:

 SubSection "Display"
  Virtual 1920 1440
 EndSubSection

Or if you wish side-by-side displays, set it to:

 SubSection "Display"
  Virtual 3840 1440
 EndSubSection

Or if you wish above-and-below displays, set it to:

 SubSection "Display"
  Virtual 1920 2640
 EndSubSection

Theoretically, the GNOME X configuration tool ought to set this stuff up for you automatically, so if it isn't, that's probably a bug for Alberto Milone to look into.