linux-kernel - Re: suspend/hibernate to work on thinkpad x60s?

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Date:	Mon, 17 Jul 2006 10:50:49 -0500
From:	Brandon Philips <brandon@...p.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: suspend/hibernate to work on thinkpad x60s?

On 11:14 Mon 17 Jul 2006, Rafael J. Wysocki wrote:
> On Monday 17 July 2006 00:51, Brandon Philips wrote:
> > On 17:28 Sun 16 Jul 2006, Brandon Philips wrote:
> > > On 08:31 Thu 13 Jul 2006, Jeremy Fitzhardinge wrote:
> > > > George Nychis wrote:
> > > > >I am not seeing any problems at all, though I am not seeing anything
> > > > >happen :)
> > > > >
> > > > >If I Fn+suspend... nothing happens ... if i Fn+hibernate ... nothing 
> > > > >happens
> > > > >
> > > > >What patches did you use?
> > > > Sounds like your first step is to set up acpi.  What distro are you 
> > > > using?  What happens if you do "echo -n mem > /sys/power/state"?
> > > > 
> > > > The patches you need are to make the ahci disk interface resume 
> > > > properly.  There's a series of 6 patches from Forrest Zhao which he 
> > > > posted to the linux-ide list, and they apply cleanly to 2.6.18-rc1-mm1.
> > > 
> > > I have tried Zhao's patches[1] against 2.6.18-rc1-mm{1,2} and 2.6.18-rc1
> > > and the suspend always stops at:
> > > 
> > > "Switching to UP mode"
> > > 
> > > At that point it hangs; giving a Ctrl+Alt+Del reboots the machine
> > > cleanly.
> > > 
> > > I want to see AHCI suspend working.  So, I am happy to try other patches
> > > or debugging steps.
> > 
> > I just tried booting 2.6.18-rc1-mm1 again and got the following
> > stacktrace which suggests a problem with the ondemand governor.   
> > 
> > After switching to the performance govenor I was able to suspend on
> > 2.6.18-rc1 and 2.6.18-rc1-mm1.
> > 
> > 	Brandon
> Could you please create a bugzilla entry for the ondemand governor problem
> and put this trace in there?

Bug URL: http://bugzilla.kernel.org/show_bug.cgi?id=6851

Thanks,

	Brandon

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