Just tried this again and I very briefly saw a black screen with log output saying something about 'try "swapon -a"' So I have, and this is what it says:
[EMAIL PROTECTED]:~$ swapon -a swapon: /dev/disk/by-uuid/18e6bce0-6c48-49a6-af84-35f58d0af0cf: Operation not permitted -- can't hibernate - get screensaver then unlock dialogue https://bugs.launchpad.net/bugs/113159 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs