Linux: jack FluidSynth audio driver produces no sound by default

[mrbumpy409]

In Linux, when using the jack audio output for the FluidSynth driver, the dmidiplayer jack output (jack device id "fluidsynth") is not connected to the system audio output, and therefore no sound can be heard unless this connection is made manually by the user each time the application is launched.

Expected result:

The dmidiplayer jack device "fluidsynth" should be automatically connected to the system playback ports.

Actual result:

The "fluidsynth" jack device exists, but must be manually connected to the system playback ports to hear any audio.

[pedrolcl]

Again, this is something that can't be addressed in dmidiplayer (and neither in VMPK, for what is worth). There is no "Jack audio output" in dmidiplayer, it is something that belongs to the Dumstick::RT's Fluidsynth backend, and its settings. Transfering...