Originally posted by flyfishin
Use the command 'alsamixer' to set volume levels then use the command 'alsactl store' to save the settings and all should be well on a reboot.
Running this once should solve your sound problem. If it doesnt, open the KDE control center, browse down to
Sound & Multimedia -> Sound System
in aRTs tab, enable "Start aRts soundserver....."
in SOund I/O , select autodetect
in mixer, select "load volumes on login."
remember to set the volumes first, test the sound, save current volumes before performing the last step.
For xmms, you can use libartsout.so output plugin for sound output.