[Pkg-mpd-maintainers] Bug#1017921: mpd tries to start on non-interactive sessions

[Geoffroy Youri Berret]

Hi Antoine :)

On 8/22/22 16:55, Antoine Beaupre wrote:
> […] > Here the mpd daemon tries to start whenever *anyone* SSHes into my
> home server. I have a system-wide mpd running on that server, yet it
> still tries to start the socket service, which means that any systemd
> --user session is "degraded". Here's one example:
> 
> anarcat at marcos:~$ systemctl list-units --failed
>    UNIT                     LOAD   ACTIVE SUB    DESCRIPTION
> ● mpd.socket               loaded failed failed mpd.socket
> […]
> 
> anarcat at marcos:~$ systemctl --user  status mpd.socket
> ● mpd.socket
>       Loaded: loaded (/home/anarcat/.config/systemd/user/mpd.socket; enabled; vendor preset: enabled)
>       Active: failed (Result: resources)
>     Triggers: ● mpd.service
>       Listen: [::]:6600 (Stream)
> 
> […]

It looks like socket service was explicitly installed for 
anarcat at marcos, the unit lies in ${HOME}/.config/systemd/user/mpd.socket 
(then it fails because MPD is already running system wide on :6600).

> The .service file also tries to start for some users:
> 
> […]
> register at marcos:~$ systemctl --user status mpd.service
> ● mpd.service - Music Player Daemon
>       Loaded: loaded (/usr/lib/systemd/user/mpd.service; enabled; vendor preset: enabled)
>       Active: failed (Result: exit-code) since Mon 2022-08-22 10:51:21 EDT; 18s ago
>         Docs: man:mpd(1)
>               man:mpd.conf(5)
>               file:///usr/share/doc/mpd/html/user.html
>      Process: 613776 ExecStart=/usr/bin/mpd --no-daemon (code=exited, status=1/FAILURE)
>     Main PID: 613776 (code=exited, status=1/FAILURE)
>          CPU: 85ms

That I don't understand, systemd service is already disabled for user, 
cf. https://salsa.debian.org/mpd-team/mpd/-/commit/891b8318 (shipped in 
0.21.26-1).

I've installed MPD on a fresh bullseye headless install, I don't get MPD 
user service|socket enabled and trying to start.

Maybe you have some settings kept from a previous dist upgrade?
Did I miss something?

Cheers
k.
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