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(Add punctuation)
(update dontzap behaviour - it's xkb keymaps now)
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=== X server ===
=== X server ===


The key combination Ctrl-Alt-Backspace to kill the X server has been [http://cgit.freedesktop.org/xorg/xserver/commit/?id=9d135ac10a7374c7ccda705f1eeb02cc53076c34 disabled by default] as a decision of the upstream Xorg project. You can change the default by adding the following section to your {{filename|xorg.conf}} file. If one does not exist, you can create it manually at {{filename|/etc/X11/xorg.conf}} using a text editor and Xorg will honor that setting.  
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.


<pre>Section "ServerFlags"
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.
Option "DontZap" "false"
EndSection</pre>
 
If you use kickstart or want to use scripts to change this setting automatically across multiple systems, you can use the following snippet:
 
<pre>%post
 
grep -q -s DontZap /etc/X11/xorg.conf
append=$?
if [ $append -ne 0 ]; then
  cat >> /etc/X11/xorg.conf << EOF
  Section "ServerFlags"
  Option "DontZap" "false"
  EndSection
  EOF
fi
 
%end</pre>
 
The Xorg project has changed the default DontZap setting to "true" after complaints from desktop users that accidentally hit Ctrl+Alt+Backspace when trying to type Alt+Backspace, Ctrl+Backspace, or Shift+Backspace, or who had StickyKeys enabled. Ctrl+Alt+Backspace is also a keyboard shortcut for deleting certain expressions in C and Java modes in Emacs.


=== Third-party Video Drivers ===
=== Third-party Video Drivers ===

Revision as of 09:57, 9 April 2009

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.

http://fedoraproject.org/wiki/Xorg/3rdPartyVideoDrivers

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