Which partition have you deleted and which resized? If swap has been deleted you can't hibernate, because the content of RAM is copied to swap prior to hibernation.
mikewhatever
hibernate problemsswap
hda5 was my swap. I deleted it, and re-sized it.
hda5 is still there. The size is different. I can occasionally get swap to work with sudo swapoff -a and then a qucik sudo swapon -a
It's as if Ubuntu doesn't recognize it.. or something.