DBUS

Sources: Wikipedia, D-Bus Specification, Cardinal Peak

Transports

Default D-Bus message buses:

• System-wide instance / message bus (see /usr/share/dbus-1/system.conf or dbus-monitor --system)
• User-session-specific instance / message bus (see '/usr/share/dbus-1/session.conf or dbus-monitor –session Monitor DBUS signals: dbus-monitor ===== DBUS Implementations ===== - GDBus (Gnome) - QT/KDE D-Bus - dbus-broker (Arch) ===== Desktop Notifications ===== * Send desktop notification: notify-send test * Send desktop notification with icon: notify-send -i face-glasses “test” (icons are located in /usr/share/icons/) * Monitor DBUS desktop notifications: dbus-monitor “interface='org.freedesktop.Notifications'” ==== Desktop Notification Daemons ==== [[https:wiki.archlinux.org/title/Desktop_notifications|Primary source]] Daemons: * dunst * NotifyOSD / notify-osd Depending on the Desktop Environment, notification daemons are built-in (Cinnamon, Gnome, KDE). Notification daemons can started standalone for other environments (e.g. i3wm). Standalone is possible via XDG autostart or as DBUS service. Typically, DBUS service files are shipped with notification daemons, e.g., /usr/share/dbus-1/services/org.freedesktop.Notifications.service