[PD] midi-out problem in jack/alsa

IOhannes m zmölnig zmoelnig at iem.at
Thu Nov 19 10:18:59 CET 2009


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Raphael Raccuia wrote:
> 
>   
>> rectification: problem occurs also when DSP is off...
> 
> i noticed something like that very recently as well.


[ot] you have a weird mailer; indentation of quotes seems to be totally
broken.
> 
> that was definitely meant as a feature.
> since i noticed pretty soon that it can be avoiding as well (esp. when
> autoconnecting to the MIDI-thru)
>> yes, especially midi-thru. I've just read the thread about autoconnect...

the problem is simple:
the default for dummy users should make all their midi gear appear on
[midiin] and friends. so we want some way of autoconnection.
when doing autoconnection we have zero possibilities to find out which
device is useful and which is not; MIDI-thru makes most problems and you
cannot reliably detect it (the name is arbitrary; the port is arbitrary
as well); i have no idea why MIDI-thru is still so omnipreset: with
alsa-seq you don't need it at all.

> , there is also a workaround: if you
> tell Pd to create to alsaseq ports (even if you only use one of them),
> it will not try to autoconnect.
>   
>> How can I do that? searched on the web, but nothing...

try this:

$ pd -help 2>&1 | grep -i midi


and _later_ this:
$ pd -alsamidi -mididev 1,1



fgsadr
IOhannes
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