No I have no more ideas on the audio issue. In fact if "The audio issue doesnt always happen" then that suggests even comment #4 might not work.
As for USB issues, please log them as separate bugs. One bug per problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814964 Title: No audio when logging in as second user. Only dummy audio device seen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1814964/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
