Do you have an /etc/asound.conf and/or ~/.asoundrc* ? What does `asoundconf list` return? If you kill pulseaudio and use `aplay /usr/share/sounds/*up.wav`, is it audible or do the above errors appear?
Do you have an /etc/asound.conf and/or ~/.asoundrc* ? What does `asoundconf list` return? If you kill pulseaudio and use `aplay /usr/share/ sounds/ *up.wav` , is it audible or do the above errors appear?