Model : Raspberry Pi 4 Model B Rev 1.4
It’s a custom build a bunch of parts from various places - mostly Amazon. This one: Success Cases
The Hifiberry is a DAC2 Pro.
I’m using an old USB MIDI interface.
Everything was working without any issues before I did the apt full-upgrade.
A side note though - when I originally build it I had to do a ‘rpi-update’ to get things working (as described here: Error with HiFiBerry DAC2 Pro).
When I do the ‘rpi-update’ now, the sound card is detected - but something else fails (I keep getting the error from the original post: WARNING:zynthian_autoconnect.cb_jack_xrun)