linux-kernel - Re: 2.6.25-rc7 : hibernation sometimes not resuming on Dell Latitude D630

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Message-Id: <200804031541.38493.didier@raboud.com>
Date:	Thu, 3 Apr 2008 15:41:36 +0200
From:	Didier Raboud <didier@...oud.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-kernel@...r.kernel.org, debian-kernel@...ts.debian.org
Subject: Re: 2.6.25-rc7 : hibernation sometimes not resuming on Dell Latitude D630

Le mercredi, 2 avril 2008 14.06:29 Didier Raboud, vous avez écrit :
> Le mardi, 1 avril 2008 23.22:35 Rafael J. Wysocki, vous avez écrit :
> > On Tuesday, 1 of April 2008, Didier Raboud wrote:
> > > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit :
> > > > (...)
> > > > Can you please test the in-kernel hibernation, then?
> > > >
> > > > Rafael
> > >
> > > Hi,
> > >
> > > would like to. How ?
> > >
> > > # echo -n disk > /sys/power/state
> >
> > Yes, should work without the "-n", too.  Of course, you have to use the
> > 'resume=' kernel command line argument for this to work.
> >
> > Perhaps increase the console log level before that.
> >
> > Thanks,
> > Rafael
>
> Ok. I found a "better" way to do it : just uninstall uswsusp and let
> kpowersave use hal to use suspend :-)
>
> Anyway, so far so good (with USB_SUSPEND not set), no hang. I will test
> with USB_SUSPEND set and the incoming 2.6.25-rc8.
>
> Regards,
>
> Didier

So far so good too with "stock" Debian Kernel (2.7.25-rc7-amd64) with 
USB_SUSPEND set. No hang.

The kernel suspend is less user-friendly than uswsusp though...

So I bet there is a bug in uswsusp's kernel part ?

Regards, 

Didier

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