snd-hda-intel - 5.1 speakers problem

snd-hda-intel - 5.1 speakers problem

[Vishwanath T. K.]

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Hi All,

I have had this problem for quite a while and could not get any solution so
far. I have tried all possible options mentioned in the
ALSA-configuration.txt and various suggestions from the mailing list but
without any luck, hence finally decided to post the problem here.

Problem:
I am unable to get all (5.1) the speakers working. I get the sound only in
four speakers connected to Line Out and Microphone jacks. Speakers connected
to Line In jack outputs noise instead of the intended sound. This noise
dissapears the moment the pin from this jack is removed.

Details:

Hardware - ASUS A8N-VM motherboard.

Software:
Fedora Core 5
Kernel 2.6.17
Alsa-driver version - 1.0.12
Driver used - snd-hda-intel, CODEC - AD1986A

/etc/modprobe.conf

alias snd-card-0 snd-hda-intel
options snd-hda-intel model=6stack position_fix=1

lspci -s 00:10.1
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev
a2)

lspci -s 00:10.1 -nv

00:10.1 0403: 10de:026c (rev a2)
        Subsystem: 10de:cb84
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 11
        Memory at febd8000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] Power Management version 2
        Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
        Capabilities: [6c] HyperTransport: MSI Mapping


Hope someone can help me solve this issue.

Regards,
Vishwanath

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Re: snd-hda-intel - 5.1 speakers problem

[Arnaud Patard]

"Vishwanath T. K." <vishytk@gmail.com> writes:


>> Hi All,

Hi

>
> I have had this problem for quite a while and could not get any solution so
> far. I have tried all possible options mentioned in the
> ALSA-configuration.txt and various suggestions from the mailing list but
> without any luck, hence finally decided to post the problem here.
>
> Problem:
> I am unable to get all (5.1) the speakers working. I get the sound only in
> four speakers connected to Line Out and Microphone jacks. Speakers connected
> to Line In jack outputs noise instead of the intended sound. This noise
> dissapears the moment the pin from this jack is removed.

I may be wrong but it may be a wrong configuration of the outputs. I
made a patch some time ago for that but I've never been able to test it
on other configuration than 2 channels output. In fact, I only
remembered of this patch when reading your mail :(

I'm not sure it's still applying on current version of the
patch_analog.c file but you may be interested in looking at it:

http://people.mandriva.com/~apatard/ad1986a_2channel_mode_fix.patch

If you can also test it in 4 channel mode, this would be nice. In the
case of all is working, one could ask to merge the patch :)

Regards,
Arnaud


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Re: snd-hda-intel - 5.1 speakers problem

[Takashi Iwai]

At Mon, 18 Sep 2006 22:51:27 +0200,
Arnaud Patard wrote:
> 
> "Vishwanath T. K." <vishytk@gmail.com> writes:
> 
> 
> >> Hi All,
> 
> Hi
> 
> >
> > I have had this problem for quite a while and could not get any solution so
> > far. I have tried all possible options mentioned in the
> > ALSA-configuration.txt and various suggestions from the mailing list but
> > without any luck, hence finally decided to post the problem here.
> >
> > Problem:
> > I am unable to get all (5.1) the speakers working. I get the sound only in
> > four speakers connected to Line Out and Microphone jacks. Speakers connected
> > to Line In jack outputs noise instead of the intended sound. This noise
> > dissapears the moment the pin from this jack is removed.
> 
> I may be wrong but it may be a wrong configuration of the outputs. I
> made a patch some time ago for that but I've never been able to test it
> on other configuration than 2 channels output. In fact, I only
> remembered of this patch when reading your mail :(
> 
> I'm not sure it's still applying on current version of the
> patch_analog.c file but you may be interested in looking at it:
> 
> http://people.mandriva.com/~apatard/ad1986a_2channel_mode_fix.patch
> 
> If you can also test it in 4 channel mode, this would be nice. In the
> case of all is working, one could ask to merge the patch :)

I think passing "model=3stack" will do a similar fix.


Takashi

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