[alsa-devel] [PATCH] ALSA, hda: Add support for Lenovo ThinkPad Edge 13 in conexant codec

Andreas Herrmann herrmann.der.user at googlemail.com
Fri May 28 08:21:02 CEST 2010

On Fri, May 28, 2010 at 07:50:31AM +0200, Takashi Iwai wrote:
> At Thu, 27 May 2010 18:06:56 +0200,
> Andreas Herrmann wrote:
> > 
> > From: Andreas Herrmann <andreas.herrmann3 at amd.com>
> > 
> > On a Thinkpad Edge 13 I had the problem that speakers played sound
> > although headphones were plugged.
> > 
> > Using "model=olpc-xo-1_5" solved this problem. So it seems sensible to
> > add this quirk. (Using other models, like ideabad did not fix it.)
> > 
> > Signed-off-by: Andreas Herrmann <andreas.herrmann3 at amd.com>
> > ---
> >  sound/pci/hda/patch_conexant.c |    1 +
> >  1 files changed, 1 insertions(+), 0 deletions(-)
> > 
> > I don't know whether adding this quirk is the right/complete solution
> > to support sound on Thinkpad Edge. But at least it solves this
> > annoying problem.
> Well, Jerone Young already sent a quirk patch but he took
> model=ideapd.  Could you guys check which one is really better?

Hi Jerone,

there are two different models of Thinkpad Edge (one with Intel CPU/chipset,
one with AMD CPU/chipset). I tested on the AMD version but from


it seems that using  model=olpc-xo-1_5 works for both versions of that Thinkpad.

I also tried ideapad -- because looking at the quirk table
for cxt5066 there is this entry

        SND_PCI_QUIRK(0x17aa, 0x21b2, "Thinkpad X100e", CXT5066_IDEAPAD),

and adding 

        SND_PCI_QUIRK(0x17aa, 0x21b3, "Thinkpad Edge", CXT5066_IDEAPAD),

seems to be conclusive.

But as I said that did not solve the problem of speakers still playing
audio if headphones are plugged in for me. Have you explicitely tested
this?  Maybe I have to retest with some newer code from the alsa tree?


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