I did the following : # apt-get --purge remove alsa-base alsa-utils alsa-oss alsamixergui # apt-get install alsa-base alsa-utils alsa-oss alsamixergui Then, re-select "alsa" as sound system in KDE "control center". The sound works, but at each reboot, i "need" to do alsaconf to recover the sound. "alsactl store" doesn't help :-(