/var/log/messages complains : Nov 24 23:52:54 myth systemd[1]: mythbackend.service: control process exited, code=exited status=235 Nov 24 23:52:54 myth systemd[1]: Unit mythbackend.service entered failed state. Simple solution (not tested whether this survives reboot) : # touch /var/run/mythbackend.pid; chown mythtv:mythtv /var/run/mythbackend.pid # systemctl start mythbackend.service # grep mythbackend

MythTV suddenly stopped audio (yet again : Every upgrade the reason is different). This time, it appears that the order the audio cards are detected has changed, so the default output has changed… The following is relevant to the process (haven’t tested this through a reboot, yet) : $ pacmd help $ pacmd info  | [...]