[tlinux-users:07316] Ubuntu on Satellite M35x-S3112

I've read on the web that other Toshiba users have experienced similar
problems.  I installed Ubuntu Breezy Badger on a Satellite, and
whenever I hibernate it stops working.  Not entirely, but sudo makes a
terminal window become unresponsive, and it won't shut down; it
freezes when it's trying to deal with network connections.

/var/log/messages tells me
ACPI: Processor [CPU0] (supports 8 throttling states)
Attempting manual resume
swsusp: Suspend partition has wrong signature?