linux-kernel - Re: [TuxOnIce-devel] Thinkpad hotkeys and USB audio not working after resume in 3.0.x

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Date:	Thu, 1 Sep 2011 13:26:54 +0100
From:	Pedro Ribeiro <pedrib@...il.com>
To:	Nigel Cunningham <nigel@...onice.net>
Cc:	Kernel development list <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	TuxOnIce-devel <tuxonice-devel@...onice.net>
Subject: Re: [TuxOnIce-devel] Thinkpad hotkeys and USB audio not working after
 resume in 3.0.x

On 1 September 2011 13:16, Nigel Cunningham <nigel@...onice.net> wrote:
> Hi Pedro.
>
> On 01/09/11 20:36, Pedro Ribeiro wrote:
>> Hi,
>>
>> I'm hitting a bug with my thinkpad T400. After resuming from Hibernate,
>> the thinkpad hotkeys and my USB audio card do not work at all.
>> Suspending to RAM and resuming seem to solve the problem, but after
>> another hibernation it comes back again.
>>
>> This only happens with TuxOnIce but not with the vanilla kernel.
>>
>> Rafael, can you please point out from the top of your head if there was
>> any change that could have caused this?
>
> Sorry for my slowness in getting back to you Pedro.
>
> When you invoke swsusp, is it in exactly the same way that TuxOnIce is
> invoked? I'm wondering whether modules are unloaded and services stopped
> in one scenario that are handled differently in the other.
>
> Regards,
>
> Nigel
> --
> Evolution (n): A hypothetical process whereby improbable
> events occur with alarming frequency, order arises from chaos, and
> no one is given credit.
>

Hi Nigel,

Thanks for your response.

I just tried using echo disk > /sys/power/state using both methods
(swsusp and ToI) and the result is the same.

With swsusp the keys and the USB interface work fine, but with ToI
they stop working until I suspend to RAM.

Regards,
Pedro
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