Re: [gentoo-user] Machine reboots immediately when suspended-to-disk

[Mick <michaelkintzios@gmail.com>]

2009/10/21 Albert Hopkins <marduk@letterboxes.org>:
> On Tue, 2009-10-20 at 20:14 -0400, waltdnes@waltdnes.org wrote:
>>   I've enabled suspend-to-disk in the kernel.  When I issue the
>> command
>> "echo disk > /sys/power/state", it suspends but *IMMEDIATELY* reboots
>> and comes back up again.  The session restores properly from the swap
>> drive, so at least that part works.  What can I do to keep it sleeping
>> until I power up again?
>
> Ok I'm going to address this issue.  You specified multiple issues in
> your email.  I think it's better to split each issue into its own
> posting.  It's simpler easier to work with one problem at a time and
> also replies to postings on different issues don't get all garbled
> up/confusing in archive searches.
>
> Ok the echo trick isn't the recommended way to suspend to disk.  A
> better way is to use "pm-hibernate --quirks" (pm-hibernate is from the
> pm-utils packages).  The --quirks option will try to handle any, well,
> quirks that are known with your hardware.  echo'ing to /sys/power/state
> is a little more low-level and could be iffy on some types of hardware.
>
> You should also check dmesg.  More than likely there is a kernel error
> that explains why it failed to suspend completely.

Or use hibernate -v4 from a root terminal to see any error messages.
-- 
Regards,
Mick