Comment 6 for bug 1854676

I can confirm that since I updated from Ubuntu 18.04 (Chromium deb) to Ubuntu 20.04 (Chromium snap), I can no longer connect to my device using WebMIDI (nor WebUSB).

For information, the web app asks permission to "Use your MIDI devices", but the call to "navigator.requestMIDIAccess()" fails.

In /var/log/syslog I get the same log entries as in the previous post:

chromium_chromium.desktop[11556]: ALSA lib conf.c:3916:(snd_config_update_r) Cannot access file /usr/share/alsa/alsa.conf
chromium_chromium.desktop[11556]: ALSA lib seq.c:935:(snd_seq_open_noupdate) Unknown SEQ hw