Comment 24 for bug 661450

I fixed it with this very simple, yet somehow hard to come by xrandr trick!

This is my config:
xrandr
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 8192 x 8192
LVDS1 connected 1280x800+1680+0 (normal left inverted right x axis y axis) 287mm x 180mm
   1280x800 59.8*+
   1024x768 60.0
   800x600 60.3 56.2
   640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
   1680x1050 60.3*+
   1280x1024 75.0 60.0
   1440x900 75.0 59.9
   1280x960 60.0
   1152x864 75.0
   1280x720 60.0
   1024x768 75.1 60.0
   800x600 75.0 60.3
   640x480 75.0 60.0
   720x400 70.1

And this is the solution:
xrandr --output HDMI1 --primary