DIN MIDI problems with RPi5 (RESOLVED)

[sangto2906]

Hello, I’m also having a bit of an issue with Zynthian’s MIDI DIN. I’m using an RPi 5 and the latest version of Zynthian. Everything such as MIDI CC, notes, or PC works without problems. However, I’m having trouble with SysEx.

Previously, when I used USB MIDI, SysEx messages were transmitted normally. But when I use the same MIDI device via the DIN port, SysEx is not received.

I don’t think the problem is with my MIDI device because I’ve successfully used SysEx to control another DIY project of mine.

So I’d like to ask: has anyone else experienced this issue, and is there a way to fix it?
Update:
I read this answer later, are they supported now?

Receive SysEx-Data

Also be aware that the version of ttyMIDI we use for processing the DIN-5 connections does not support sysex. (We could modify it if necessary but as it stands - no sysex.) ttyMIDI also converts note-on with zero velocity to explicit note-off (with velocity 64) and converts running status messages to full MIDI commands. This is all to simplify downstream code but is not necessary in Zynthian (or any other JACK based system) so there are many improvments that could be applied.