How to use Emacs in full screen mode ?
 Full screen on X11
The following maps the function 11 key to toggle fullscreen on X11 (Linux, BSD, etc…).
Add this in your .emacs :
(defun toggle-fullscreen () "Toggle full screen on X11" (interactive) (when (eq window-system 'x) (set-frame-parameter nil 'fullscreen (when (not (frame-parameter nil 'fullscreen)) 'fullboth)))) (global-set-key [f11] 'toggle-fullscreen)
However, I tested it on Emacs23 and it does not replace my window correctly if it was maximised, so I prefer the following method :
 Using external program
Install wmctrl (sudo apt-get install wmctrl). Add the following in your .emacs :
(defun switch-full-screen () (interactive) (shell-command "wmctrl -r :ACTIVE: -btoggle,fullscreen")) (global-set-key [f11] 'switch-full-screen)
And now you can write in peace.