There's a suggestion on the forum that this bug is a side-effect of problems with the swapfile, reported in bug 66637.
I've followed the instructions here: https://launchpad.net/distros/ubuntu/+bug/66637/comments/23 and I'm now able to hibernate as before on Dapper. -- System doesn't hibernate https://launchpad.net/bugs/69882 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
