Comment 22 for bug 755230

I can confirm exactly the same issue, also when running tuxonice, so I guess it is not related to the suspend system used.

And I don't know if this relates, but I have been having quite a few graphical unity issues (white square blocks one screen of dual screen setup, unity graphics freeze, --reset does not help, must logout), and as the above indicates that nvidia may not be the culprit, it might be linked to this (I have searched and posted about it a few times, no answers).

Ubuntu 11.10
nvidia graphics
Dell Precision T3400