Graphics trouble after resuming from hibernate or suspend
Solution 1:
This is pretty clearly a bug and not something that should have to be worked around or which could be fixed through user action. The best thing to do in these cases is to open a bug in launchpad so that Ubuntu developers can see it and track it.
For suspend/resume or hibernate problems, it's best to open the bug against the linux kernel. You can do that from a shell by typing:
ubuntu-bug linux