add plughw: to the list and don't try to get any information from the dmix: pcm device - it's useless
add plughw: to the list and don't try to get any information from the dmix: pcm
device - it's useless

svn path=/trunk/KDE/kdelibs/phonon/; revision=617167

sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc