Comment 14 for bug 568939

It appears (to me at least) that the D505 fails to start perhaps because of
Bug 554835 [855GM] GPU hang when an application tries to use XVideo
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/554835

and I notice that Comment 20 for that bug advises that a kernel fix may be achieved if we have patience... https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/554835/comments/20