[arch-general] nVidia MCP79

[Alexander Lam]

Hello,

On Sun, Jul 18, 2010 at 6:29 PM, Rafael Beraldo
<rafaelluisberaldo at gmail.com> wrote:
> 2010/7/15 Alexander Lam <lambchop468 at gmail.com>
>
>> Sorry for the late response, I've been away.
>> I've actually been trying to make my own ALC268 louder, so I've read
>> up on hda architecture :P
>> (I haven't been successful though)
>>
>> card0 is a single HDA controller. an HDA controller is basically a dma
>> controller that sends audio data to a codec connected to the HDA bus
>> on that card.
>> In this instance, you have two codecs connected to the same HDA
>> controller, which means...
>>
>> You won't see two sound cards in lspci because both sound codecs are
>> on the same pci device.
>>
>> This may be the fault of your terminal.
>> Did you try amixer instead?
>>
>
> Well, amixer doesn't seem to show nothing relevant. Here is the output:
> http://pastebin.com/e7Xx7Gce. I don't see anything that I can't control with
> alsamixer. Also, everything is set to 100%.
>
>
>>
>> Anyway, I highly recommend using reading
>> http://www.alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA and
>> using the HDA-Analyzer utility mentioned there - you can mess with
>> your codecs manually to try to get louder sound.
>>
>
> I've read it quickly... What should I look for? What should I tweak? I don't
> know those things very well. Anyway, right know I'm downloading Ubuntu to
> see if the sound is louder in this distribution. I haven't tested any OS but
> Arch Linux.
>
In the HDA-Analyzer, you should look for EAPD, which is External
Amplifier Power Down. Also, the sliders are essentially directly
hooked up to the sound card's hardware mixers. Just play around with
it.
>>
>> --
>> Alexander Lam
>
>
> --
> Rafael Beraldo
> http://cabaladada.org
>



-- 
Alexander Lam