Comment 10 for bug 1173967

Same problem here.
Xserver-xorg-video-intel is definitly the troublemaker for me.
In discrete mode i can do whatever I want and even install the latet version of xserver-xorg-video-intel.
Switching to high performance graphics kills the install (message about only low graphics mode available).
Degrading the xserver-xorg-video-intel gets ubuntu back in the run.
Naturally the system wants to re-install latest driver. I can't seem to fix that by using the lock driver functionality in synaptic like some blogs suggest. So when the system breaks again after an update i do have to demote the driver version.
Now i have kicked out some ppa's out of my list and it seems to be pretty stable.
Conclusion: The amd and intel combination is probably the cause for this malfunction