During installation I tested alsa and it was fine. (XCFE)
GStreamer was unable to detect any sound devices. Some sound system specific GStreamer packages may be missing. It may also be a permissions problem.
There is no sound in Kaffeine using the Xine engine either.
I also have a KDEmod install and its sound has stopped after an update too.
I installed gnome-alsamixer and it is trying to use a Realtek sound card instead of my Nvidia hda.
How can I change this?