you can have sound or you can have sound but you can't have both
only kidding
try this turn off arts
as in sound system uncheck enable sound system
and restart kde
then under system notification click configure player and set it to mplayer
make sure you set mplayer to use the alsa output plugin and the mixer and mixer channel driver default
now make a file in your home directory called .asoundrc
put this
Code:
# this might get some non alsa aware apps to use dmix
pcm.dsp {
type plug
slave.pcm "dmix"
}
pcm.dsp0 {
type plug
slave.pcm "dmix"
}
# this makes native ALSA apps default to using dmix
pcm.!default {
type plug
slave.pcm "dmix"
}
try to set all the apps to use alsa native output if possible