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

From: Thomas Gleixner
Date: Thu Jan 13 2011 - 13:52:47 EST


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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