C.3.3.3. The ServerFlags section

The optional ServerFlags section contains miscellaneous global X server settings. Any settings in this section may be overridden by options placed in the ServerLayout section (see Section C.3.3.4, “The ServerLayout Section” for details).
Each entry within the ServerFlags section occupies a single line and begins with the term Option followed by an option enclosed in double quotation marks (").
The following is a sample ServerFlags section: 
Section "ServerFlags"
  Option "DontZap" "true"
EndSection
The following lists some of the most useful options:
  • "DontZap" "boolean" — When the value of <boolean> is set to true, this setting prevents the use of the Ctrl+Alt+Backspace key combination to immediately terminate the X server.

    Note

    Even if this option is enabled, the key combination still must be configured in the X Keyboard Extension (XKB) map before it can be used. One way how to add the key combination to the map is to run the following command: 
    setxkbmap -option "terminate:ctrl_alt_bksp"
  • "DontZoom" "boolean" — When the value of <boolean> is set to true, this setting prevents cycling through configured video resolutions using the Ctrl+Alt+Keypad-Plus and Ctrl+Alt+Keypad-Minus key combinations.
  • "AutoAddDevices" "boolean" — When the value of <boolean> is set to false, the server will not hot plug input devices and instead rely solely on devices configured in the xorg.conf file. See Section C.3.3.2, “The InputDevice section” for more information concerning input devices. This option is enabled by default and HAL (hardware abstraction layer) is used as a back end for device discovery.