linux-kernel - Re: snd_hda_intel 2.6.24-rc2 bug: interrupts don't always work on Lenovo X60s

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Date:	Mon, 12 Nov 2007 08:39:01 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Roland Dreier <rdreier@...co.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: snd_hda_intel 2.6.24-rc2 bug: interrupts don't always work on Lenovo X60s

At Thu, 08 Nov 2007 14:48:32 -0800,
Roland Dreier wrote:
> 
> With 2.6.24-rc2 on my Lenovo X60s, I sometimes get:
> 
>     hda_intel: No response from codec, disabling MSI: last cmd=0x002f0d00
>     hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x002f0d00
> 
> when loading snd_hda_intel.  Sound still works but interrupts aren't generated.
> 
> I tried bisecting but I haven't gotten good info yet because it seems
> that this is not completely reproducible -- sometimes when I load the
> module, it works fine, and other times I get the message.
> 
> I think this is a regression, since I don't recall ever seeing the
> message with 2.6.22 or so.
> 
> Any idea on how to help debug this?

You seem to pass unneeded module options to snd-hda-intel driver like
MSI enablement.  First, try to remove all these options.


Takashi
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