[PD] SysEx In issue

Dan Wilcox danomatika at gmail.com
Mon Feb 11 14:55:54 CET 2019

(responding again in thread)

It is most likely a bug, maybe introduced in the MIDI overhaul I did for
0.48. Does the same issue occur in 0.47?

Can make a *re-produceable* patch and/or project for testing and open an
issue on the pure-data Github repo? The simplest thing for me would be the
syses messages you're sending as bytes.

You could also check the output of the midi tester patch I added:

Browser -> Pure Data/7.stuff/tools/miditester.pd

> Not too long ago I wrote here reporting an issue with receiving SysEx
> messages.
> When Pd receives a big quantity of SysEx, the MIDI IN port 'gets stuck' and
> then you need to go to 'Media->MIDI settings...' and re-select the port,
> otherwise no MIDI messages will be received anymore.
> Here's a video that shows the issue:
> https://vimeo.com/316526250
> it's a private video, the pass is: sysexissue
> Does anybody know what could cause this behavior and if it's possible to
> 'fix it'?
> The first time I reported it, it was when I stumbled on this using my
> personal Linux machine and Miller Puckette suggested to change the MIDI
> buffer in the source code, but unfortunately also setting that to something
> insane like 2^20, the issue was still there.
> Now I double checked on MacOS Sierra and Windows 10 and it is the same.
> Cheers,
> Mario

Dan Wilcox
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