You can set up the system so that Common Desktop Environment comes up automatically when you start the system, or you can start Common Desktop Environment manually. You must log in as root to perform each of these tasks.
You may find it more convenient to set up your system to start Common Desktop Environment automatically when the system is turned on. You can do this through the Web-based System Manager (type wsm, then select System), through the System Management Interface Tool (SMIT), or from a command line.
You must have root user authority to enable or disable desktop auto-start.
1Note: Restart the machine after completing this task.
You can start Common Desktop Environment manually.
A Desktop Login screen is displayed. When you log in, you will start a desktop session.
You can stop Common Desktop Environment manually.
When you manually stop the login manager, all X-servers and desktop sessions that the login manager started are stopped.
cat /var/dt/Xpid
kill -term process_id