I have a different card than the original reporter, but it is also the
intel driver and I also get X restarts upon hibernation, but not upon VT
switches.
With some experimenting, I found that the X server start does not occur,
if the screen lock upon hibernation is disabled.
00:00.0 Host bridge:
I have the same problem.
It occurs in the standard Jaunty distribution. I can add, that it also
occurs after one installs the "optimal" configuration of the HOWTO:
"Jaunty Intel Graphics Performance Guide" from www.ubuntuforums.com:
http://ubuntuforums.org/showthread.php?t=1130582
Kernel 2.