Next time the problem happens, please check if you have a 'pulseaudio' process running. If not then please follow these instructions:
https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
If you do however have a 'pulseaudio' process running (as yourself) and still no audio then please run:
apport-cli --hanging -P PID
where PID is the process ID of the pulseaudio process. Then tell us the new bug ID created.
Next time the problem happens, please check if you have a 'pulseaudio' process running. If not then please follow these instructions:
https:/ /wiki.ubuntu. com/Bugs/ Responses# Missing_ a_crash_ report_ or_having_ a_.crash_ attachment
If you do however have a 'pulseaudio' process running (as yourself) and still no audio then please run:
apport-cli --hanging -P PID
where PID is the process ID of the pulseaudio process. Then tell us the new bug ID created.