[alsa-devel] Problem with VIA VT1708S and git versions of alsa-driver.

Mark Goldstein goldstein.mark at gmail.com
Wed Sep 29 15:27:19 CEST 2010


On Wed, Sep 29, 2010 at 5:06 AM, Raymond Yau
<superquad.vortex2 at gmail.com> wrote:
> 2010/9/28 Mark Goldstein <goldstein.mark at gmail.com>
>> Hi,
>> > In theory, a motherboard with 6 audio jacks at back panel does not need
>> > retasking pink and blue jacks as output pins , it seem to me that the
>> > "smart5.1" switch is redundant for your motherboard.
>> >
>> > it seem this patch may has side effect on those via codec since they need
>> to
>> > differentate the front mic and mic at rear panel for retasking
>> >
>> >
>> http://git.alsa-project.org/?p=alsa-kernel.git;a=commitdiff;h=bbe959733a719ecffda8ecd7d4b9631a2745e8b4;hp=6650d30dfe1cf9ef6e639bd898d3b2f637f4bf3b
>> Looks like a possibility.
>> What bothers me is the fact that with git version the card is not
>> detected properly (on oS 11.1). I missed this detail in my report just
>> because I did not try alsaconf after the problem first occurred.
>> That is, alsaconf does not show it in the list of cards.
>> So I guess that the sound driver uses some defaults (it does indicate
>> the this is hda-intel) that just does not match the actual codec.
>> While when I use stable 1.0.23 version card is detected by alsaconf
>> and works correctly.
>> From the other side, the problem on oS 11.3 looks very different.
>> I did not update driver there, just installed additional kernel that
>> also has alsa 1.0.23.
>> How it could lead to "Capture1" switch "reversing"? And now when I
>> found it out and set it to "mute", Mic works correctly with recording
>> SW and produces distorted audio in Skype in exactly the same
>> configuration where it worked perfectly a couple of weeks ago.
>> Regards,
>> --
>> Mark Goldstein
> How did you perform the recording since there are two capturing subdevices ?

When I played with alsamixer before, I saw that only Capture1 works
for me. This time I set both Capture1 and Capture2 levels to some high
value and saw that Capture2 does not change anything.

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