Advanced Linux Sound Architecture

I try alsa-rc2 in my laptop compaq pressario 706EA with via686 
and i think (or I am dreaming ) that works better than rc1 (the first
one that works).
so, it is a great sound that I have now !!! 
thank you.

After analyze, I understand one thing that can be work, but isn't
and I will try to explain, when I press the physical button (- and +) of laptop ,
works correctly up and down the sound.
Resuming:
Correctly when I press this buttons, should up and down master volume in aumixer.
(like when xmms if up or down volume, up and down Pcm volume)
this because if for example I press - until mute the sound, if I move master in aumix the sound backs,
 I can put it lauder,
 but if I press again in one button (- or +) the sound back to mute mode. 
understood?
the tips is before in aumix move the master volume to the present volume.
and when moves master move the present volume.

I don't know if it is possible but is the way how this via686 works width windows.

so is not very important that this issue exists but (I think) can be easy do it.