Install dbus-x11 by entering the following commands in the terminal:
sudo apt update sudo apt install dbus-x11
Description:
simple interprocess messaging system (X11 deps)
D-Bus is a message bus, used for sending messages between applications. Conceptually, it fits somewhere in between raw sockets and CORBA in terms of complexity. . This package contains the dbus-launch utility which is necessary for packages using a D-Bus session bus. . See the dbus description for more information about D-Bus in general.
Homepage: http://dbus.freedesktop.org/
Version: 1.12.2-1ubuntu1
Section: x11