Airplay was working without any problems, but after upgrading to 2.692 from 2.673 using the web interface I lost it. It seems that the upgrade stopped airplay service from starting after boot, as
ps aux | grep airport
returns nothing and executing
shairport-sync &
fixes the problem.
I could not find any logs:
$ systemctl status shairport-sync --full
● shairport-sync.service - Shairport Sync - AirPlay Audio Receiver
Loaded: loaded (/lib/systemd/system/shairport-sync.service; static)
Active: failed (Result: exit-code) since Sun 2019-12-22 07:56:55 UTC; 6min ago
Process: 1365 ExecStart=/usr/local/bin/shairport-sync --configfile=/tmp/shairport-sync.conf (code=exited, status=217/USER)
Main PID: 1365 (code=exited, status=217/USER)
Dec 22 07:56:55 my-volumio systemd[1]: Starting Shairport Sync - AirPlay Audio Receiver...
Dec 22 07:56:55 my-volumio systemd[1]: Started Shairport Sync - AirPlay Audio Receiver.
Dec 22 07:56:55 my-volumio systemd[1]: shairport-sync.service: main process exited, code=exited, status=217/USER
Dec 22 07:56:55 my-volumio systemd[1]: Unit shairport-sync.service entered failed state.
$ journalctl -u shairport-sync.service
No journal files were found.
Seems to be the same problem as reported in Shairport fail, Volumio 2.163, RSP2, HifiberryDIGI+ from May 2017 (???).