seems to be entirely related to fglrx driver... shuts down with "radeon" driver, have not tested suspend, update when available. may be part of xorg 7.1 fglrx incompatibility problem that has already been reported.
-- Hang on Suspend... and shutdown... https://launchpad.net/bugs/69324 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs