David wrote: >I use the same distribution here but with DeMuDi's multimedia kernel. I can spawn Crystal too. I see its jack outputs but I cannot seem to find its MIDI input(s) (neither with aconnect nor qjackctl). > > hm. Are we talking of the same vst and version (2.4)? I got crystal here: http://www.greenoak.com/crystal/download.html Have you loaded the alsa sequencer modules? : modprobe snd-seq-midi modprobe snd-seq I can see "130:Crystal" under QJackCtl's 'Writable Midi Clients / Midi Input Ports' in the "Connections" Window. Connecting Rosegarden4 also worked. Emanuel