Pulseaudio

Pulse audio started multiple times

In journalctl shows some warnings that are the result of the fact that pulseaudio is started multiple at boot and user login. After analyzing I have identified the following locations which start pulseaudio:

Systemd user service

$ systemctl --user is-enabled pulseaudio.socket
enabled
$ systemctl --user is-enabled pulseaudio.service
enabled

XDG autostart

 ls /etc/xdg/autostart/*pulse*
 cat /etc/xdg/autostart/pulseaudio.desktop

XFCE session startup

 cat ~/.config/autostart/*pulse*

~/.config/autostart/pulseaudio.desktop. This file is created and set (hidden=true/false) by (un)checking XFCE → Session and Startup → PulseAudio at startup

D-Bus Activation Mechanism

D-Bus service file: There's a D-Bus service file that tells D-Bus how to start PulseAudio when something requests it:

/usr/share/dbus-1/services/pulseaudio.service
/usr/share/dbus-1/services/
/usr/share/dbus-1/system-services/

[D-Bus Service]
 Name=org.pulseaudio.Server
 Exec=/usr/bin/pulseaudio --start --log-target=syslog

Automatic activation: When an application tries to connect to PulseAudio via D-Bus (requesting the org.pulseaudio.Server service), D-Bus automatically launches PulseAudio if it's not already running.