linux-kernel - Re: s2disk: system powers up again after power off

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Message-ID: <3aa654a40807151609m70d6852ex7f85d60c438bb4d7@mail.gmail.com>
Date:	Tue, 15 Jul 2008 16:09:46 -0700
From:	"Avuton Olrich" <avuton@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	"Martin Michlmayr" <tbm@...ius.com>, linux-kernel@...r.kernel.org
Subject: Re: s2disk: system powers up again after power off

On Tue, Jul 15, 2008 at 3:59 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> On Wednesday, 16 of July 2008, Avuton Olrich wrote:
>> On Tue, Jul 15, 2008 at 1:24 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
>> > On Tuesday, 15 of July 2008, Avuton Olrich wrote:
>> >> On Tue, Jul 15, 2008 at 5:47 AM, Martin Michlmayr <tbm@...ius.com> wrote:
>> >> > When I use s2disk to suspend my HP 2510p notebook, it writes
>> >> > everything to disk, and powers off... but after 2-3 seconds it often
>> >> > powers on again.  This doesn't happen all the time but quite
>> >> > frequently (definitely in the majority of cases).
>> >> >
>> >> > I believe I've never seen this when I use "halt" to power off the
>> >> > machine (but I don't use halt very often).
>> >> >
>> >> > Any idea?
>> >>
>> >> Ugh, this happens here too, this started occuring before 2.6.25 but
>> >> every time I try to bisect it takes hours and I end up screwing up
>> >> somewhere along the way, so I haven't had time to bisect this
>> >> correctly.
>> >
>> > Please try to put "shutdown method = shutdown" into the s2disk's configuration
>> > file and see what happens in that case.
>>
>> Anything a little less fancy? I use pm-hibernate, or gnome's Power
>> Manager to hibernate; I don't even have s2disk installed, sorry I
>> should have mentioned that.
>
> Martin mentioned s2disk in his original post.  Never mind.
>
> Please try to do "echo shutdown > /sys/power/disk" before hibernation and
> see what happens.

Well, that certainly works (powers off as expected). Should I be
putting this in my startup scripts or is there something I need to do
to help fix this problem, kernel-wise?

Thanks!
-- 
avuton
--
 "I've got a fever. And the only prescription is more cowbell." --
Christopher Walken
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