So after around a week I updated my system and after that my setting that I applied to my notification no longer works. It appears that xfce notification changed some setting that is conflict with dunst daemon. Any idea how to fix it. This settings has been working fine for me for months.
$ systemctl --user status dunst.service
dunst.service - Dunst notification daemon
Loaded: error (Reason: Unit dunst.service failed to load properly, please adjust/correct and reload service manager: File exists)
Active: inactive (dead)
Docs: man:dunst(1)
Sep 25 20:10:00 lenovo-i315 systemd[1083]: dunst.service: Two services allocated for the same bus name org.freedesktop.Notifications, refusing operati>
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Do you mean xfce4-notifyd-config ? There is no other binary with that kind of name in the path (using bash completion). This one opens the notification settings , which I don’t think effect the daemon.
I found the solution somewhere else, in case others have this problem:
In /usr/share/dbus-1/services/org.xfce.xfce4-notityd.Notifications.service we should change the line Name=org.freedesktop.Notifications to Name=org.freedesktop.NotificationsNone. And reboot.