Hi, i have this sound problem too with sidux(KDE-7.10).
In Savage theres no problem with sound but i don't know if they both use the same sound driver(ALSA ... ?).
It is a medion(Aldi-) PC, maybe i can find mainboardnb with everest in win.
The sound-failure reminds me as i tried to run c&c1 under wine. I tried several configurations and some where better than others but none realy errorless.
OK, not realy a hint, but i don't think it is a problem with some individual mainboard.