I am loading notifications KDE Control Center module and trying to test some sound notifications. Playback starts, but aborts earlier than quater of second. Neither phonon kcm module, nor jack daemon didn't give any significant error messages. kcmshell4 kcmphonon: "jack_client_new: deprecated" jack 1.9.5. xine 1.16.3 with jack support from PPA "Until jack included in main" or like. P.S. Just found some words about gstreamer-jack: http://ubuntuforums.org/archive/index.php/t-554457.html