I’m experiencing a problem that is similar to the one outlined here , although I am using a 4gb raspberry pi 4. I have been running a 2018 pisound on a pi3 with the old patchbox OS. Then I have run the same setup on a pi4 using raspbian lite, and i have not had any issue with USBs. I decided to try …

Reflashing with the november image has worked - lsusb shows the correct output now.

Missing USB ports with realtime kernel on pi4 4gb

chylee January 18, 2021, 10:09pm 10

I have tried November image work for me as well just have to reinstall thank you

Raising ALSA cards_limit