Comment 5 for bug 578952

Something I should have noted earlier: Hibernation works correctly on this same system *if* the standard Ubuntu desktop is installed in the normal way (disabled root account, normal user with admin privileges) from the live-CD installer. It's only when I start with a minimal system with a traditional user/root account duo that the problem arises.

I looked over bug #577916. I've noticed the same filesystem-orphan errors intermittently (sometimes they're there, sometimes not); I think these have more to do with the fact that the filesystem remains dirty when the system goes into hibernation, than the failure to resume itself. When the system boots up and fails to resume, after all, it finds the system in much the same way it would be if you had pressed the reset button. Whether or not you get orphan errors thus depends on the state of the disk cache when you hibernated, which is extraneous.

I do see the "PM: Resume from disk failed" message on bootup after hibernation.