hp xw8000 - sound only palying on pc speaker

whatever I do, I can’t get the sound playing from the soundcard output it is just playing from the internal pc speaker …

any suggestions what to check ??

Please try to work your way through the openSUSE audio troubleshooting guide and see if that helps:
SDB:AudioTroubleshooting - openSUSE

allright will try this … thanx