Web site hosting - Chapter 3 . Getting into the Desktop 81
Chapter 3 . Getting into the Desktop 81 . GNOME login manager The GNOME display manager (gdm) comes with a Login Screen Setup utility (from the desktop run the gdmconfig command as root user). From the Login Screen Setup window, you can select the Graphical Greeter tab and choose a whole different theme for the login manager. On the Security tab, you may notice that all TCP connections to the X server are disallowed. Don t change this selection, because no processes other than those handled directly by your display manager should be allowed to connect to the login screen. After your login and password have been accepted, the desktop environment configured for your user account starts up. Users can modify their desktop environments to suit their tastes (even to the point of changing the entire desktop environment used). Boot to a Text Prompt Instead of a nice graphical screen with pictures and colors, you might see a login prompt that looks like this: Welcome to XYZ Linux yourcomputer login: This is the way all UNIX and older Linux systems used to appear on the screen when they booted up. Now this is the login prompt that is typical for a system that is installed as a server or, for some reason, was configured not to start an X display manager for you to log in. Run level 3 boots to a plain-text login prompt in multiuser mode. Just because you have a text prompt doesn t necessarily mean you can start a desktop environment. Many Linux experts boot to a text prompt because they want to use the GUI only occasionally. However, if X and the necessary other desktop components are installed on your computer, you can typically start the desktop after you log in by typing the following command: $ startx The default desktop environment starts up, and you should be ready to go. What you do next depends on whether you have a KDE, GNOME, or some sort of homespun desktop environment. In most cases, the GUI configuration you set up during installation for your video card and monitor gets you to a working desktop environment. If, for some reason, the screen is unusable when you start the desktop, you need to do some additional configuration. The Configuring Your Own Desktop section later in this chapter describes some tools you can use to get your desktop working.
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