Comment 7 for bug 594837

Kamal's kernel patch solved this issue for me.

I have a Dell E6410:
Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz
nVidia NVS 3100M

My computer would fail to resume from suspend every second attempt. The first attempt following a reboot would suspend/resume correctly, but the next attempt would fail. The suspend seemed to occur properly, but on resume I would see the BIOS self-test and Ubuntu would cold boot.

This also solved an apparently related problem: after the failed suspend (and possibly on normal cold boots?), networking would be disabled. I would have to right-click network-manager and enable networking. That problem is now resolved as well.

I have checked suspend on lid close/resume on open, and suspend from the session menu/resume with power button. Major improvement!