Comment 44 for bug 24330

Phil, you're right. Hibernate is disabled by default in Xubuntu 12.04 due to known bugs. Don't count on hardware that supports suspend or hibernate to work with the 'buntus or even other debian based distros. It's supposed to be specific to laptops, but it's disabled on desktop systems too, and after enabling it I find yes it is a bug/annoyance.
I'm wondering if these "tasks refusing to freeze" could be automated TO freeze, before the hibernate or suspend command is executed, instead of this error message (abut 7 in 10 times on my system, sometimes it works flawlessly. Doesn't seem to matter that everything is closed except weather app and samba shares.)
Alternatively, would this not work if the user were logged out and all activity suspended (as it were) before hibernate or suspend were carried out?