Steve777Csak reméli, hogy bejön, de vélhetően kipróbálta:
"I installed instead the mate-media-pulse and mate-settings-deamon-pulse (that full uninstall mate-media-gstreamer and mate-settings-deamon-gstreamer) and tadam ... "Volume up" action was able to unmute the volume again !"
http://forums.linuxmint.com/viewtopic.php?f=48&t=114544#p655372
(-> Synaptic)