Comment 396 for bug 993187

Have the same problem - system freezes completely, only way out is a hard reboot :(
It's random, often while doing Shotwell, sometime Google Earth, few times even while ejecting a SD drive! I also had a few random warnings that Compiz crashed (maybe related ?!).

Here are my specs:
Brand new Desktop from System76
Ubuntu 12.04 LTS 64 bit
Kernel: 3.2.0-26-generic
3rd Generation Intel Core i5 3570K ( 3.40GHz - 6MB cache - 4 Cores - HD Graphics 4000 )
8 GB DDR3 - 1600 MHz
2 Tb HDD