Bug#502530: kmix channel settings changes - master is nulled, possibly a bug in config management.
2009/6/9 Dev Random <email@example.com>:
> Package: kmix
> Version: 4:4.2.2-1
> --- Please enter the report below this line. ---
> Kmix doesn't work - it's information on channels is nulled every (or so)
> login. Maybe this has nothing to do here, but lcd weather station (plasma)
> also does this (null config), so it may be a bug in a configuration
> management (kaboom?).
> I've purged completely my old kde3 config after the transition to kde4 (if
> it gives you an additional info...).
I don't think this is a configuration issue. It probably has to do
with alsa. Is alsa installed and configured correctly on your system?
Does alsamixer work from a terminal?