Comment 1 for bug 208259

Hibernate/resume support with nvidia gpus and the nvidia binary drivers is rather touchy. Sadly, the workaround described for Suspend2 will only work when using suspend2 (aka tuxonice), and Ubuntu does not ship a kernel with the tuxonice patches. I would be interested in taking a look at your /var/log/pm-suspend.log after a failed hibernate/resume (just to see if there is something obvious) but there are no guarantees that we can make hibernate work.