Comment 12 for bug 1074779

Yes, I've heard about that too. But it might be a different bug. As Dave said in comment #2, alusa's BootDmesg.txt shows that the system is trying, but failing, to use the nouveau driver for the NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df4] (rev a1) (prog-if 00 [VGA controller]). I don't know if modprobing the kernel with a blacklist is enough to stop the xserver from trying to support the hybrid graphics. If alusa can post another set of logs (by running apport-collect 1074779) after booting with the nouveau driver blacklisted as described in comment #2 that will hopefully help to clarify things.

Also alusa has SandyBridge Intel graphics (third generation Core i3/i5/i7), not Intel 915GM or Intel 945G so if this bug does turn out to be in the Intel driver it's still likely to be a different bug.