jack_umidi : Can't send MIDI to audio interface

[Hans Petter Selasky]

On 05/10/18 15:50, Marcel Bonnet wrote:
> I think the synth is listening : I set up Jack Keyboard to the same channel
> on the synth. And what really worries me about is the fact of USB Interface
> not blinking the MIDI output status light. So it seems the interface is not
> receiving any data from the computer.

You can test /dev/umidi0.0 and see if the led is blinking if you echo 
some 0xff characters there.

--HPS