ring@ring-desktop:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 4096 x 4096
VGA-0 connected 1600x900+0+0 (normal left inverted right x axis y axis) 443mm x 249mm
   1600x900       60.0*+
   1280x1024      60.0
   1152x864       75.0
   1024x768       75.1     60.0
   832x624        74.6
   800x600        75.0     60.3     56.2
   640x480        75.0     60.0
   720x400        70.1
DVI-0 connected (normal left inverted right x axis y axis)
   1600x900       60.0 +
   1280x1024      60.0
   1152x864       75.0
   1024x768       75.1     60.0
   832x624        74.6
   800x600        75.0     60.3     56.2
   640x480        75.0     60.0
   720x400        70.1
S-video disconnected (normal left inverted right x axis y axis)