Ubuntu
xserver-xorg-video-intel package

  1. Bug #993187
  2. Comment #11

Comment 11 for bug 993187

Revision history for this message
Hein (hhanssen) wrote : Re: ubuntu 12.04 64bit completely freezes frequently

I just found these 'solutions'. Perhaps it helps to sort out the problem:
http://www.andreagrandi.it/2012/04/27/ubuntu-12-04-nvidia-8800-gs-and-nouveau-drivers/
http://blog.shevin.info/