linux-kernel - Re: [PATCH] Quirk to fix suspend/resume on Lenovo Edge 11,13,14,15

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Message-ID: <alpine.LFD.2.00.1101131946560.2678@localhost6.localdomain6>
Date:	Thu, 13 Jan 2011 19:51:49 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Borislav Petkov <bp@...64.org>
cc:	Manoj Iyer <manoj.iyer@...onical.com>,
	Matthew Garrett <mjg@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Herrmann3, Andreas" <Andreas.Herrmann3@....com>
Subject: Re: [PATCH] Quirk to fix suspend/resume on Lenovo Edge 11,13,14,15

On Thu, 13 Jan 2011, Borislav Petkov wrote:

> On Thu, Jan 13, 2011 at 01:11:48PM -0500, Manoj Iyer wrote:
> > Borislav,
> > 
> > Please see attached lspci output.
> 
> Thanks, that looks better. A stab in the dark:
> 
> Can you boot your machine with "nohpet" and try a suspend/resume cycle
> to see whether that helps?
> 
> If that works, can you then boot normally (i.e. no "nohpet" option on
> the command line) and wait ~5mins after resume to see whether your
> machine comes out of the hang after all (the idea here is to wait for
> the 32bit HPET counter to wrap around).

What's odd is that the machines actually boot. I would have expected
that they do not boot at all if the BIOS IRQ0 pin2 override is
ignored. But it seems that takes effect just when the machine does a
suspend/resume. Weird!

Can we please get a dmesg for a boot with an unpatched kernel and one
with the DMI quirks applied (or acpi_skip_timer_override on the kernel
command line) ?

Thanks,

	tglx
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