@Robbie -- are these all Iintel i915 graphics? Do you get blinky keybaord lights when it fails? If so its highly likely this is triggered by the bug fixed by the commit below:
commit e6890f6f3dc2d9024a08b1a149d9bd5208eea350 Author: Linus Torvalds <email address hidden> Date: Tue Sep 8 17:09:24 2009 -0700
i915: disable interrupts before tearing down GEM state
@Robbie -- are these all Iintel i915 graphics? Do you get blinky keybaord lights when it fails? If so its highly likely this is triggered by the bug fixed by the commit below:
commit e6890f6f3dc2d90 24a08b1a149d9bd 5208eea350
Author: Linus Torvalds <email address hidden>
Date: Tue Sep 8 17:09:24 2009 -0700
i915: disable interrupts before tearing down GEM state