Comment 6 for bug 1163981

Additional information:

$ apt-cache policy xorg
xorg:
  Installed: 1:7.6+12ubuntu2
  Candidate: 1:7.6+12ubuntu2

$ apt-cache policy openbox
openbox:
  Installed: 3.5.0-7~precise
  Candidate: 3.5.0-7~precise

$ lsb_release -rd
Description: Ubuntu 12.04.3 LTS
Release: 12.04

$ uname -a
Linux UBN 3.5.0-39-generic #60~precise1-Ubuntu SMP Wed Aug 14 15:38:41 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

$ xrandr -q
Screen 0: minimum 320 x 200, current 3288 x 1080, maximum 3286 x 1920
LVDS connected 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 164mm
   1366x768 60.0*+
   1360x768 60.0
   1280x768 60.0
   1280x720 60.0
   1024x768 60.0
   1024x600 60.0
   800x600 60.0
   800x480 60.0
   640x480 60.0
DFP1 connected 1920x1080+1368+0 (normal left inverted right x axis y axis) 478mm x 269mm
   1920x1080 60.0*+
   1680x1050 60.0
   1400x1050 60.0
   1600x900 60.0
   1280x1024 60.0 75.0
   1440x900 75.0 59.9
   1280x960 60.0
   1280x800 59.8
   1152x864 60.0 75.0
   1280x768 59.8
   1280x720 60.0
   1024x768 75.0 70.1 60.0
   1024x600 75.0 70.1 60.0
   800x600 72.2 75.0 60.3 56.2
   800x480 72.2 75.0 60.3 56.2
   640x480 75.0 72.8 67.0 59.9
CRT1 disconnected (normal left inverted right x axis y axis)

$ apt-cache policy fglrx
fglrx:
  Installed: 2:9.012-0ubuntu1
  Candidate: 2:9.012-0ubuntu1

Please let me if there is anything else I can provide.