linux-kernel - Re: commit 7b2bfdb broke sound card detection on my Lenovo T400s

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Date:	Tue, 07 Sep 2010 08:02:18 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Jens Taprogge <jens.taprogge@...rogge.org>
Cc:	Frank Becker <fb@...en8.de>, linux-kernel@...r.kernel.org,
	alsa-devel@...r.kernel.org, bp@...en8.de
Subject: Re: commit 7b2bfdb broke sound card detection on my Lenovo T400s

At Tue, 7 Sep 2010 00:45:48 +0200,
Jens Taprogge wrote:
> 
> On Mon, Sep 06, 2010 at 07:04:21PM +0200, Frank Becker wrote:
> > Hi,
> > 
> > Please always CC me since I'm not subscribed to the mailing lists.
> > 
> > I have a problem since commit id 7b2bfdb (about 2.6.35-rc2) up to the
> > latest HEAD on my Lenovo T400s laptop. Just found out while testing Ubuntu
> > 10.10.
> > 
> > Problem is: Headphones don't work any more, internal Microphone doesn't
> > work any more. However, if I load snd-hda-intel with the option
> > model=ideapad the mic and the headphones work perfectly well again. For now
> > that is an acceptable work around. However, before the aforementioned
> > commit I didn't have to provide any module parameters.
> > 
> > Before rev 7b2bfdb I had:
> > └[a8@t4]-~→find /proc/asound/card* -type f | grep codec | xargs grep \
> >     "^Codec\|^Vendor Id\|^Subsystem Id\|^Revision Id"
> > Codec: Conexant ID 5069
> > Vendor Id: 0x14f15069
> > Subsystem Id: 0x17aa2132
> > Revision Id: 0x100300
> > 
> > Starting with rev 7b2bfdb I get:
> > └[a8@t4]-~→find /proc/asound/card* -type f | grep codec | xargs grep \
> >     "^Codec\|^Vendor Id\|^Subsystem Id\|^Revision Id"
> > Codec: Conexant CX20585
> > Vendor Id: 0x14f15069
> > Subsystem Id: 0x17aa2132
> > Revision Id: 0x100300
> > 
> > BTW, all the bisecting is done out of the linus.git tree.
> > 
> > Thank you for looking into that. I'm happy to provide more information or test
> > patches.
> > 
> > Thanks,
> > 
> >     Frank
> > 
> > 
> > -- 
> > Frank Becker <fb@...en8.de> (jabber|mail) | http://twitter.com/41i3n8
> > GnuPG: 0xADC29ECD | F01B 5E9C 1D09 981B 5B40 50D3 C80F 7459 ADC2 9ECD
> > SILC-Net: a8 | Home: http://www.alien8.de | <<</>> http://www.c3d2.de
> > "> Freedom is just chaos, with better lighting. <"  Alan Dean  Foster
> 
> Hello Frank,
> 
> apparently the devices are wired differently on the T410s (which works
> here) and the T400s.
> 
> Have you tried playing with the mixers?  There might be additional ones
> present after the patch.
> 
> Also when you say things work perfectly when specifying "model=ideapad",
> does that include automatic switching between internal and external
> microphones?  Have you attached your T410 to a docking station?

Also, it'd be helpful if alsa-info.sh output is given.
Jens, Frank, could you guys run it with --no-upload option and attach
the output for comparison?


thanks,

Takashi
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