Comment 9 for bug 1218456

VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6310]

built in monitor 1366x768, external VGA monitor 1600x900

Boots to black screen on both

Will boot with nomodeset running external monitor as follows.

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 800 x 600, current 1152 x 864, maximum 1152 x 864
default connected primary 1152x864+0+0 0mm x 0mm
   1152x864 0.0*
   1024x768 0.0
   800x600 61.0

settings displays thinks it is a built in monitor. Will attach Xorg.0.log