X Window System (Graphics)
This section contains information related to the X Window System implementation, X.Org, provided with Fedora.
X server
The key combination Ctrl-Alt-Backspace to kill the X server has been removed from the default XKB maps. To enable it, the xkb option "terminate:ctrl_alt_bksp" must be enabled. This can be achieved by going to System->Preferences->Keyboard->Layout->Layout Options->Key sequence to kill the X server and then ticking the checkbox "Control + Alt + Backspace". Alternatively, one may run 'setxkbmap -option "terminate:ctrl_alt_bksp"' from the command-line to enable the key combination temporarily.
The package fedora-setup-keyboard automatically merges this XKB option at X server startup and the Ctrl-Alt-Backspace key combination is functional in gdm or if the server is started without the GNOME desktop environment. It is deactivated once GNOME applies the user-configured keyboard layout unless the user has enabled it in the preferences menu as detailed above.
Third-party Video Drivers
Refer to the Xorg third-party drivers page for detailed guidelines on using third-party video drivers.