Nvidia nforce2 mobo/graphics problem

[Randy Kelsoe]

Per-Olof Litby - Reg'l Mgr Nordic/Baltic - Java System Software - Sun 
Microsystems wrote:

>> Correct, my mobo doesn't have nforce audio. It has the more basic 
>> Realtek chips. I discovered that I actually do get sound, but only on 
>> the front 2 channels, not the surround channels. In Windows, the 
>> audio output ports can be configured so that the microphone port 
>> becomes the rear (or surround) port. I need to do this in Fedora as 
>> well, since I have speakers connected to both front and rear outputs.
>>
> 00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 
> Audio Controler (MCP) (rev a1)

So this really is the nforce2 audio chipset. This is the same chipset I 
have on my mobo.

>
> and
>
> snd_pcm_oss            47656  0
> snd_mixer_oss          16768  3 snd_pcm_oss
> snd_intel8x0           28844  4
> snd_ac97_codec         60420  1 snd_intel8x0
> snd_pcm                80392  2 snd_pcm_oss,snd_intel8x0
> snd_timer              19972  1 snd_pcm
> snd_page_alloc          9096  2 snd_intel8x0,snd_pcm
> gameport                3840  1 snd_intel8x0
> snd_mpu401_uart         5760  1 snd_intel8x0
> snd_rawmidi            19364  1 snd_mpu401_uart
> snd_seq_device          7048  1 snd_rawmidi
> snd                    44260  13 
> snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device 
>
> soundcore               7008  3 snd
>
> /POL


This looks good. Have you run 'alsamixer' and tried turning up the 
volume for the Surround Channel? I only have 2.1 speakers, so I can't 
verify that the surround works. You might look at the alsa page for the 
nforce2 chipset (which is using the intel8x0) driver:

http://www.alsa-project.org/alsa-doc/doc-php/template.php?company=Intel&card=i820&chip=i820&module=intel8x0

There are some notes for solutions to various problems at the bottom of 
the page.

What application are you using that has surround sound?