OK, so I rebooted into 4.13.0-39 and as soon as I was logged in the USB audio started working. So I thought maybe that indicated a regression between 4.13 and 4.15. HOWEVER< I then rebooted again, into 4.15 once more, and now I have audio in and out on the USB devices.
I'm not sure exactly why, but for this issue the resolution seems to have been "reboot a whole bunch of times and try a different kernel". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767181 Title: Upgrade to Bionic and USB audio devices no longer work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1767181/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
