[arch-general] pavucontrol can't connect to Pulseaudio

Dear list, pulseaudio is started with my X session via /etc/X11/xinit/xinitrc.d/pulseaudio. [gabx@magnolia:~]$ ps aux | grep pulse gabx 687 0.0 0.0 501896 6652 ? S<l 15:12 0:00 /usr/bin/pulseaudio --start My issue is with pavucontrol, the GTK volume control tool. When I start pavucontrol, the volume control windows opens but hangs with this message: Establishing connection to Pulse Audio. Please wait... and never open. I see in the log file : [pulseaudio]pid.c : Daemon already running. Why can't pavucontrol access to pulse audio?? This issue didn't appeared when I booted with sysvinit, but it came when using systemd. TY for help