The title of this bug should be "System freezes after returning from
hibernate" for me but I shamelessly assume the same here..

I have a Toshiba Portege M100 with Ubuntu 9.04 running and also was not
able to hibernate (or to be precise: wake up after hibernate).

My simple workaround (after a very long debugging process with "uswsusp"
and "hibernate"):

% cat /etc/pm/config.d/00sleep_module
# The sleep/wake system to use.  Valid values are:
#   kernel    The built-in kernel suspend/resume support.
#             Use this if nothing else is supported on your system.
#   uswsusp   If your system has support for the userspace
#             suspend programs (s2ram/s2disk/s2both), then use this.
#   tuxonice  If your system has support for tuxonice, use this.
#
# The system defaults to "kernel" if this is commented out.
# SLEEP_MODULE="kernel"
SUSPEND_MODULES="ohci1394"

I assume there (still) must be a bug in "ohci1394" but I wonder why this
module is not blacklisted by default?

(Btw: Standby-to-RAM used to work flawlessly without this modification.)

Greetings,
 - Darsha

-- 
Laptop freezes as it wakes up after sleep, reboot needed
https://bugs.launchpad.net/bugs/290019
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