On Mon, 26 Dec 2016 19:26:13 +0100, Ralf Mardorf wrote: >Is there anything useful in the log file? > >Please run > > grep "$(date "+%b %d")" ~/.log/jack/jackdbus.log|tail -50 > >and post the output. It might be that nothing ALSA MIDI related is part of a _jack_ log file ;).