Comment 11 for bug 633596

Two further ways on how to get around the problem:
1) you can use vesa driver in xorg.conf after blacklisting drm.ko and i915.ko (and get a higher fps in glxgears)
2) you can add "i915.modeset=1 video=1280x800@60e" as kernel parameters so that also the VGA1 connector is turned on and then you can switch it off in rc.local for example.