Same problem here. I already tried to build alsa with m-a but it did not
solve it. (I did not tried all the "options … model=" tough)

$ lspci|grep Audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition 
Audio Controller (rev 02)

$ cat /proc/asound/card0/codec#*|grep Codec
Codec: Realtek ALC861
Codec: Motorola Si3054

$ alsamixer

alsamixer: function snd_mixer_load failed: No such file or directory

I also noticed the following in dmesg/syslog, but I suppose it is due to what I 
put in alsa-base:
$ dmesg|grep hda
[   46.360387] hda_codec: Unknown model for ALC861, trying auto-probe from 
BIOS...

$ sudo /etc/init.d/alsa-utils reset
 * Resetting ALSA...
amixer: Mixer hw:0 load error: No such file or directory
amixer: Mixer hw:0 load error: No such file or directory
[…] (this last line is repeated 36 times!)
amixer: Mixer hw:0 load error: No such file or directory
                                                                                
                                                                                
                                       [ OK ]

and of course it does not solve the problem. I had already tried that
before trying to build alsa with m-a. After building alsa, alsa-utils
reset worked, but still no sound. I removed the generated alsa-modules-*
package and now it does not work any more… Btw, is there anything else
to do to revert the changes of module-assistant and alsa-utils reset ?
Before doing that I had still very low sound, now I do not have any
sound at all…

-- 
alsamixer broken in hardy - intel hda
https://bugs.launchpad.net/bugs/192382
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