Log in as a normal user. Switch user to user Root.
$ su #
Use <CTRL><ALT><F2> to access a second terminal, log in as a normal user and switch user to Root.
Switch between the two terminals using <CTRL><ALT><F1> and <CTRL><ALT><F2>.
Log in as a normal user and start an X session. Open a terminal window (eg gnome terminal).
Switch user to user Root.
Open a second terminal window and su to user Root.