[arch-general] nVidia MCP79

Rafael Beraldo rafaelluisberaldo at gmail.com
Sun Jul 11 11:02:28 EDT 2010


2010/7/11 Rafael Beraldo <rafaelluisberaldo at gmail.com>

>
>  $  cat /proc/asound/card0/codec#* | grep Codec
> Codec: Realtek ALC269
> Codec: Nvidia MCP79/7A HDMI
>
> Which, I think, means that MCP79 only controls HDMI audio output. I was
> looking at the wrong place all this time. This card is not shown when I run
> lspci. Anyway, I quickly searched the web and found nothing relevant but
> that:
> http://lists.alioth.debian.org/pipermail/debian-eeepc-devel/2010-February/003320.html.
> However, this error doesn't exist in the current kernel.
>
> I'll try the parameters for ALC269. There are a few in that link, including
> two related to eeepc, and no parameters to MCP79.
>
> --
> Rafael Beraldo
> http://cabaladada.org
>

I tested all parameters. Two of them give me interesting results: quanta
gives me control not only of the internal mic but also of the external mic
and basic gives me control of all of it and the front speaker. In both cases
alsa daemon gives and error related to the NVIDIA chipset but everything
works.

Sound volume didn't change with any parameters.

Also, alsamixer says it is using the NVIDIA MCP79 and I can't change the
sound card by typing F6.

Now I'm just confused and again wondering if the sound isn't just that loud.

-- 
Rafael Beraldo
http://cabaladada.org


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