I am using Arch Linux (4.7.5-1-ARCH) with xmonad (xmonad 0.12) window manager. I am new to xmonad and I am still learning it. I have not done much modifications so my xmonad.hs is minimal.   import XMonad   import XMonad.Layout.Spacing   import Graphics.X11.ExtraTypes.XF86   import XMonad.Util.EZConfig   import XMonad.Hooks.ManageHelpers manageHook = manageDocks <+> (isFullscreen --> doFullFloat) <+> manageHook defaultConfig    myLayout = tiled ||| Mirror tiled ||| Full    where        -- default tiling algorithm partitions the screen into two panes        tiled = spacing 3 $ Tall nmaster delta ratio        -- The default number of windows in the master pane        nmaster = 1        -- Default proportion of screen occupied by master pane        ratio = 1/2        -- Percent of screen to increment by when resizing panes        delta = 2/100   main = do   xmonad $ defaultConfig        {layoutHook = myLayout }The problem I am facing is that I am not able to make some applications go full screen. As of now, when I press F11, only mozilla firefox goes to fullscreen. The following applications (and many more) does not obey F11 at all. - gedit text editor - evince Document Viewer - emacs - leafpadNothing happens when I press F11. It doesn't respond even if I manually click on fullscreen-button  (as you can see below).Is there any way to make things go fullscreen on xmonad ? 
Fullscreen not working in xmonad
arch linux;window manager;xmonad;gedit;fullscreen