The X Windows system.ppt

The X Windows system Unit objectives Explain the purpose of GUI components, list common window managers and desktop environments Configure X Windows to work with video hardware, keyboards, and mice Topic A: GUI components GUI Components Graphical interfaces are easier User friendly Many graphical tools to simplify administration Multiple environments to choose from Need to understand components GUI components The X Windows system X Windows The component of the GUI that displays graphics on the terminal screen X clients The programs that tell X Windows server how to draw the graphics and display the results Major GUI components Window manager Determines the appearance of the windows drawn on the screen by X Windows Desktop environment Works with the window manager to provide a unified environment that includes standard programs and development tools KDE GNOME XFce KDE Desktop Environment GNOME Desktop Environment Common window managers Controlling the graphical interface Many methods to start X Windows Can edit config files directly or with x client tools Starting and stopping X Windwos Runlevel 5 settings include a display manager Gnome-gdm KDE-kdm XClients config files Runlevel 5 starts automatically From runlevel 3 Gdm at command line Startx Starts X Windows and the manager or desktop specified in .Xclients The Desktop Switching Tool Topic B: Configuring X Windows Configuring X Windows For the video adapter card, X Windows requires: The video adapter card model The amount of RAM on the video adapter card The chipset on the video adapter card Video monitor values X Windows also requires information about the monitor The maximum resolution supported The horizontal sync (hsync) range The vertical sync (vsync) range /etc/X11/xorg.conf Configuration file used by X Windows on Fedora Core 2 Mouse configuration using mouseconfig The Display settings utility Using Xvidtune Although most monitors today support a wide range of hsync and vsync values, choosing too high