FWIW, info only
After clean install of 64bit version sound worked ok.
after initialization of sound cards via yast-sound
the additional package was needed
alsa-firmware-1.0.29-3.2.noarch
vlc did not play encrypted film-dvds before install of
libdvdcss2-1.2.13-5.2.x86_64
should not these packages be included as dependencies?
hths