Here's the log from the original partitioning. I have since resized the swap to around 1 Gb (just to be on the safe side ...) and hibernating now works, at least roughtly. (Just tested for the first time. The fan kept on running until I gave up on waiting and rebooted -- but I digress.)
** Attachment added: "/var/log/installer/partman" http://librarian.launchpad.net/4303854/partman -- Creates too small swap for hibernate https://launchpad.net/bugs/60511 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs