[alsa-devel] No sound with Sony VAIO VPCZ1 (ALC889)
awilliam at redhat.com
Mon Jul 8 19:00:22 CEST 2013
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.
> 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.
I'll test this on my affected system if I can get it to apply against
3.9 - thanks!
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