OTOH JACK port
appears and gets automatically connected only after you
press Play button. Then it disappears.
Alexandre Prokoudine
http://libregraphicsworld.org
yes, however pausing playback keeps the JACK port.
Moreover - as for me, ports
disappear __only__ when i press stop button. When end of track is reached, ports are still
visible. I can just move slider to start and play again. Without reconnection.