Restarting X server with keyboard short-cut on Fedora 11

If you need to restart X Server quickly and do not wish to use the commandline, you can use CRTL-ALT-BACKSPACE.

If you use the keyboard short-cut and it does not restart the X11, you may want to check the settings on

1. the System > Preferences > Keyboard. 
2. Select the Layout Tab and click the "Layout Options...." Button. 
3. Finally, click the item "Key sequence to kill the X Server" and check the item
   

 

And that's it.....