[alsa-devel] No sound with Sony VAIO VPCZ1 (ALC889)
tiwai at suse.de
Mon Jul 8 21:16:21 CEST 2013
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
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