linux-kernel - Re: 2.6.29 regression: left audio channel broken after resume from suspend with Intel HDA

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Message-Id: <200904202129.00316.rjw@sisk.pl>
Date:	Mon, 20 Apr 2009 21:28:59 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Tino Keitel <tino.keitel@...ei.de>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	tiwai@...e.de
Subject: Re: 2.6.29 regression: left audio channel broken after resume from suspend with Intel HDA

On Monday 20 April 2009, Tino Keitel wrote:
> Hi,
> 
> since 2.6.29 and also with 2.6.29.1 the left audio channel of the
> digital output of my Mac mini Core 2 Duo is noisy.  This didn't happen
> with 2.6.28.  Unloading snd-hda-intel and reloading it does fix the
> noisy sound.
> 
> This happened with some older versions of the Linux kernel (with an
> older Mac mini Core Duo, I don't remeber which kernel version), but got
> fixed at some point.  Now it happens again with 2.6.29.
> 
> Here is the dmesg output for the sound hardware:
> 
> HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> HDA Intel 0000:00:1b.0: setting latency timer to 64
> hda_codec: STAC922x, Apple subsys_id=100
> input: HDA Intel Line In at Ext Left Jack as /class/input/input18
> input: HDA Intel Mic at Ext Left Jack as /class/input/input19
> input: HDA Intel HP Out at Ext Left Jack as /class/input/input20
> 
> Any hints what I could try to fix this, maybe some commit that I should
> try to revert?

Well, no.

Still, you might try the current Linus' tree.

Best,
Rafael
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