There are none of the usual suspects in the debug logs, i.e. there is no indication that the graphics driver is the cause of the hangs. You will have to look for patterns in the freezes and keep an eye out for any recorded errors.
** Summary changed: - ubuntu 12.04 si blocca + [snb] ubuntu 12.04 system freeze ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002847 Title: [snb] ubuntu 12.04 system freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1002847/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs