[alsa-devel] No sound with Sony VAIO VPCZ1 (ALC889)

[Takashi Iwai]

At Mon, 08 Jul 2013 10:00:22 -0700,
Adam Williamson wrote:
> 
> On 2013-07-08 1:04, Takashi Iwai wrote:
> 
> > Yes, it should be applicable.  But I found one missing piece in my
> > previous patch.  Try the patch below instead, and let me know if it
> > works.  Then I'll queue it for the next pull request for 3.11-rc1,
> > then it'll be backported to stable kernels.
> > 
> > 
> > thanks,
> > 
> > Takashi
> > 
> > ---
> > From: Takashi Iwai <tiwai at suse.de>
> > Subject: [PATCH] ALSA: hda - Add no_multi_io hda_gen_spec flag
> > 
> > We got a bug report about the silent speaker output on Sony VAIO-Z,
> > and it turned out that the previous workaround for assigning the first
> > DAC to the speaker pin 0x14 didn't work any longer properly with the
> > recent code.  The culprit is the handling of multi-I/O capability.
> > 
> > The recent driver allows the multi-I/O 5.1 setup even with two mic
> > jacks as long as they are placed in the same slot.  This is the case
> > of VAIO-Z breakage.  It has a secondary mic via a headset, and this
> > confused the driver as if there are really two mic jacks that are
> > capable of bidirectional I/O.
> > 
> > For solving this situation, this patch adds yet another flag to
> > hda_gen_spec indicating that the machine needs no multi-I/O, and sets
> > this new flag in the exiting fixup for VAIO-Z.
> 
> Typo: "exiting" instead of "existing" near the end.

Thanks, I'll fix it in the final commit.

> I'll test this on my affected system if I can get it to apply against 
> 3.9 - thanks!

Let me know if it really works.  It seems working on emulator, at
least :)


Takashi