impossible to connect to a Waldorf Pulse 2

[jphaenlin]

Hi, When trying to connect I get the message "an error occured while creating the synth editor for WaldorfPulse2" and there is the following trace on the terminal :

java -jar ./edisyn.jaravax.sound.midi.MidiUnavailableException: Device or resource busy at java.desktop/com.sun.media.sound.MidiOutDevice.nOpen(Native Method) at java.desktop/com.sun.media.sound.MidiOutDevice.implOpen(MidiOutDevice.java:51) at java.desktop/com.sun.media.sound.AbstractMidiDevice.doOpen(AbstractMidiDevice.java:150) at java.desktop/com.sun.media.sound.AbstractMidiDevice.open(AbstractMidiDevice.java:117) at edisyn.Midi$MidiDeviceWrapper.getReceiver(Midi.java:149) at edisyn.Midi.getNewTuple(Midi.java:554) at edisyn.Synth.setupMIDI(Synth.java:1726) at edisyn.Synth.instantiate(Synth.java:349) at edisyn.Synth.instantiate(Synth.java:299) at edisyn.Edisyn.main(Edisyn.java:48) WARNING: error with stack trace requested but there's no Throwable java.lang.NullPointerException at edisyn.Synth.handleException(Synth.java:8934) at edisyn.Synth.showErrorWithStackTrace(Synth.java:2702) at edisyn.Synth.showErrorWithStackTrace(Synth.java:2729) at edisyn.Midi.getNewTuple(Midi.java:557) at edisyn.Synth.setupMIDI(Synth.java:1726) at edisyn.Synth.instantiate(Synth.java:349) at edisyn.Synth.instantiate(Synth.java:299) at edisyn.Edisyn.main(Edisyn.java:48)

[SeanLuke]

This is usually caused by a bad MIDI device, a malformed driver of some sort, etc. What OS are you running on?

[jphaenlin]

Linux, Fedora 35. Other programs are ok, for example jsynthlib.

[SeanLuke]

I can't speak to jsynthlib (and frankly that is surprising), but we had the same problem in Linux in issue #33. The problem appeared to be Jack conflicting with the standard Java drivers. Any chance this could be the same?

[jphaenlin]

It works if I disable Jack. Thank you very much.

[SeanLuke]

Well, we still have to figure out how to deal with Jack. :-(