Re: [Jack-Devel] dumping MIDI events to a logfile

You're trying to run JACK on your MIDI interface.

It doesn't work that way. JACK needs to work with an audio interface but
will then *also* expose MIDI devices as JACK ports (if told to do so, which
you're not doing).

Try this:

   jackd -R -d alsa -d hw:MID -X seq

(the name of your actual audio interface ("MID") is unfortunately somewhat
confusing in this context, given that it isn't a MIDI device and hw:UMONE
is :)


On Mon, Jan 11, 2016 at 9:37 AM, Benjamin Henrion <[hidden]> wrote:

> On Mon, Jan 11, 2016 at 3:32 PM, Paul Davis <[hidden]>
> wrote:
> > Please run this command and show its output:
> >
> >     cd /tmp && wget http://jackaudio.org/downloads/adevices.sh && bash
> > ./adevices.sh
> >
> > My guess is that you are attempting to start JACK with the wrong device.
>
> https://pastee.org/9mkpy
>
> qjackctl says hw:UMONE equals to hw:1.
>
> Then when I launch jackd as a user with an alsa backend, it complains
> about loading an alsa pcm driver:
>
> ================================================
> zoobab@chuchu /home/zoobab [85]$ jackd -R -d alsa -d hw:1
> jackd 0.124.1
> Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben
> Hohn and others.
> jackd comes with ABSOLUTELY NO WARRANTY
> This is free software, and you are welcome to redistribute it
> under certain conditions; see the file COPYING for details
>
> JACK compiled with System V SHM support.
> loading driver ..
> creating alsa driver ... hw:1|hw:1|1024|2|48000|0|0|nomon|swmeter|-|32bit
> ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
> capture-only mode
> cannot load driver module alsa
> zoobab@chuchu /home/zoobab [86]$
> ================================================
>
> Do i need to load alsa backend in order to be able to use jack_midi_dump?
>
> Best,
>
> --
> Benjamin Henrion <bhenrion at ffii.org>
> FFII Brussels - +32-484-566109 - +32-2-3500762
> "In July 2005, after several failed attempts to legalise software
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> 
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>

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