I think the main hint is in comment #15: tessa@viper:~$ pacmd list Daemon not responding.
This means pulseaudio has either hung, crashed or been killed. Please follow these instructions to see if you can find any evidence of a crash: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment If not, and if the pulseaudio daemon is still running and not responding to 'pacmd list' then please try forcing a crash report with: killall -ABRT pulseaudio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799007 Title: [System76 Oryx Pro] no sound after 18.10 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1799007/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
