> On 10/12/2025 3:25 AM EDT Andreas Schneider <[email protected]> wrote: > > > Compiling in JACK support adds a new MIDI backend, yet it is only used > if you select it as MIDI backend in the settings dialog under the MIDI > tab. The default backend is still PortMidi even if JACK support is > compiled in. > I also had the strange effect that MIDI input did not work at first > after updating my distribution and recompiling Denemo, however, when > trying again the next day it worked. I'm not sure why. Maybe the device > was already in use by another process. That happened to me with audio > output. Thus, it is worth to retry under Linux and check that the device > is not in direct use by some other process (i.e. not via the sound server). > > Andreas >
Well, the bizarre thing, again, is that Denemo on my Ubuntu **IS** detecting the input keyboard! It is showing up, listed, under Edit -> Change Preference -> MIDI -> Input device But nothing happens when I actually send the MIDI signal.
