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From: Leonardo Meira on 9 May 2010 22:00
Hello everybody,

I have a problem with my sound card (nVidia Corporation MCP67 High
Definition Audio | ALC662 High Definition Audio) and I would like you to
indicate the best location and the best way for me to report the bug that I
will describe:

After a fresh installation and setup of alsa, I only have sound in one of
two outputs and the microphone does not work. After reading a lot of
documentation about the subject, I found that inserting the line "options
snd-hda-intel model = 3stack 6ch-index = 0" in alsa-base.conf file I can
make my sound card work better, but with some problems, which are:

a) If I select the 6-channel mode (in kmix or alsa-mixer), the two sound
outputs work but the microphone do not work.
b) If I select the 2-channel mode (in kmix or alsa-mixer), the microphone
works but only one sound output works.

You do not agree with me that this is a bug? I've been experiencing it in
different distributions and several versions of the Linux kernel. As in
several versions of ALSA.

Before you ask me, yes, I've tried all the options associated with ALC662
codec (
http://www.mjmwired.net/kernel/Documentation/sound/alsa/HD-Audio-Models.txt)
and the option mentioned above was that worked best.


I am a novice user of Linux. So I ask you for help. How could I help solve
this problem? What is the right place to report this bug?

Thanks,

Motherboard: ASUS M2N68-AM SE
Debian Lenny
Squeeze Debian / Sid
From: deloptes on 10 May 2010 05:30
Leonardo Meira wrote:

> Hello everybody,
>
> I have a problem with my sound card (nVidia Corporation MCP67 High
> Definition Audio | ALC662 High Definition Audio) and I would like you to
> indicate the best location and the best way for me to report the bug that
> I will describe:
>
> After a fresh installation and setup of alsa, I only have sound in one of
> two outputs and the microphone does not work. After reading a lot of
> documentation about the subject, I found that inserting the line "options
> snd-hda-intel model = 3stack 6ch-index = 0" in alsa-base.conf file I can
> make my sound card work better, but with some problems, which are:
>
> a) If I select the 6-channel mode (in kmix or alsa-mixer), the two sound
> outputs work but the microphone do not work.
> b) If I select the 2-channel mode (in kmix or alsa-mixer), the microphone
> works but only one sound output works.
>
> You do not agree with me that this is a bug? I've been experiencing it in
> different distributions and several versions of the Linux kernel. As in
> several versions of ALSA.
>
> Before you ask me, yes, I've tried all the options associated with ALC662
> codec (
>
http://www.mjmwired.net/kernel/Documentation/sound/alsa/HD-Audio-Models.txt)
> and the option mentioned above was that worked best.
>
>
> I am a novice user of Linux. So I ask you for help. How could I help
> solve
> this problem? What is the right place to report this bug?
>
> Thanks,
>
> Motherboard: ASUS M2N68-AM SE
> Debian Lenny
> Squeeze Debian / Sid

may be this will help you

/usr/src/linux/Documentation/sound/alsa/HD-Audio-Models.txt

ALC662/663/272
==============
3stack-dig 3-stack (2-channel) with SPDIF
3stack-6ch 3-stack (6-channel)
3stack-6ch-dig 3-stack (6-channel) with SPDIF
6stack-dig 6-stack with SPDIF
lenovo-101e Lenovo laptop
eeepc-p701 ASUS Eeepc P701
eeepc-ep20 ASUS Eeepc EP20
ecs ECS/Foxconn mobo
m51va ASUS M51VA
g71v ASUS G71V
h13 ASUS H13
g50v ASUS G50V
asus-mode1 ASUS
asus-mode2 ASUS
asus-mode3 ASUS
asus-mode4 ASUS
asus-mode5 ASUS
asus-mode6 ASUS
dell Dell with ALC272
dell-zm1 Dell ZM1 with ALC272
samsung-nc10 Samsung NC10 mini notebook
auto auto-config reading BIOS (default)

read also /usr/src/linux/Documentation/sound/alsa/HD-Audio.txt

There is also excelent ALSA documentation in their project page.

write also in feature how you are testing things (which programs) and
possibly supply log information.

i.e.
arecord -L
and
aplay -L
and
amixer
output


regards


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