Ok, yes I also suspect the os rather than pd… Its unfortunately difficult to debug, since during development I did not have the problem, and now that the raspi and teensy are packed in a box … The classic Heisenbug, or even Mandelbug situation:-) I will try to come up with the “script to check if device is here, otherwise restart” idea…if someone could point me to a starting point I’d appreciate it. I’m not very steeped linux scripts….
> On 03.10.2025, at 14:46, Andrew Lyons <[email protected]> wrote: > > I am going to guess that its not pd that doesn't recognize the midi device, > but alsa. I have the same problem with an older pi4 I use for a pd synth. > I've spent quite a bit of time trying to work out why alsa doesn't see the > hifiberry card on boot without coming up with a reliable solution. It's a > problem that probably needs to be elevated to those developing the operating > system, and perhaps alsa specifically. In the meantime, a reboot is the only > workaround I've come up with. > > Best > > ============================================================ > Andrew D Lyons | Tools Developer | https://www.sites.google.com/site/tstexture > ============================================================ > > On Fri, Oct 3, 2025, 1:47 AM michael strohmann <[email protected] > <mailto:[email protected]>> wrote: >> Hi! >> >> A bit off topic since probably more related to operating system: >> I am running PD on a raspi5 / bookworm with a teensy as MIDI device input. >> In some cases pd does not recognise the MIDI device after a restart. >> >> Is there a way to start pd only when the system recognized the MIDI device ? >> >> Thanks! >> Michael >> >> --- >> [email protected] <mailto:[email protected]> - the Pure Data >> mailinglist >> https://lists.iem.at/hyperkitty/list/[email protected]/message/QMTYVZBEPXDDKCOKC7MAT5IU6AKUAHDS/ >> >> To unsubscribe send an email to [email protected] >> <mailto:[email protected]> mailing list >> UNSUBSCRIBE and account-management -> https://lists.iem.at/ >>
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