Ok, the bug is not completely fixed by what I described above. Apparently while the mouse does not freeze anymore after resume, it does freeze if I quit X and go to a command line and then return.
-- Mouse freezes - dies after acpi suspend resume https://launchpad.net/bugs/52720 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs