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 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1854676 Title: [snap] Web Midi API doesn't work Status in chromium-browser package in Ubuntu: Confirmed Bug description: With aspirations of creating a web based Midi tool, using Ubuntu 19.10, I'm trying to test out the Web Midi API: https://www.w3.org/TR/webmidi/ Although it is supposed to be supported in Chromium, none of these samples work in Ubuntu 19.10's snap-package installation of Chromium: https://webaudio.github.io/demo-list/ In the meantime, please recommend a work-around of how I can work with the Web Midi API while using Ubuntu Linux as my operating system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1854676/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
