I've removed leftover rules for mupdf and llpp. There's also no need for making Gimp floating, because Gimp stable version has a single-window mode, and there's no collection of windows anymore, if you enable that. One thing I've noticed with mpv (and mplayer) is that if you enter and leave fullscreen, then the video (inside window) is cropped by at least one column of pixels, and the window is not restored to its original floating position but moved right+down by one or more pixels. These two effects are probably related, but I don't see anything wrong with the config. Any idea what's wrong? Here's v3 with more fixes and better wording: xmonad and xmonad-contrib have evolved a lot over the years, and therefore it's a good idea to showcase a modern xmonad.hs. The config below will give you a good starter xmonad setup with minor customizations. These are: (1) Ask for confirmation before exiting (2) Replace default launcher binding with built-in shellPrompt, which is friendlier to use and does not require dmenu. Arguably, these customizations should be the default, but as it requires xmonad-contrib, we can not really make it the default. Things you might want to configure next: * customize looks * control volume and display back-light * customize layouts * customize mouse behavior * add more prompts (ssh, man, password, etc.) * whatever you can imagine and/or need Save this as ~/.xmonad/xmonad.hs: import System.Exit import XMonad import XMonad.Hooks.DynamicLog import XMonad.Hooks.ManageDocks import XMonad.Hooks.ManageHelpers import XMonad.Layout.Fullscreen import XMonad.Layout.LayoutHints import XMonad.Layout.NoBorders import XMonad.Prompt import XMonad.Prompt.ConfirmPrompt import XMonad.Prompt.Shell import XMonad.Util.EZConfig import XMonad.Util.Run(hPutStrLn, spawnPipe) main = do xmproc <- spawnPipe "xmobar ~/.xmonad/xmobarrc" xmonad $ defaultConfig { terminal = "xterm" , manageHook = myManageHook <+> fullscreenManageHook <+> manageDocks <+> manageHook defaultConfig , layoutHook = fullscreenFloat $ fullscreenFocus $ layoutHints $ smartBorders $ avoidStruts $ layoutHook defaultConfig , handleEventHook = fullscreenEventHook , logHook = dynamicLogWithPP $ xmobarPP { ppOutput = hPutStrLn xmproc } } `additionalKeysP` [ -- Ask for confirmation before exiting by replacing the default -- binding with a custom one. ("M-S-q", confirmPrompt myXPConfig "exit" $ io exitSuccess) -- Replace M-p launcher binding with built-in shellPrompt, which -- is friendlier and does not require dmenu. , ("M-p", shellPrompt myXPConfig) ] `additionalKeys` [ ((mod4Mask, xK_q), spawn "xmonad --recompile && xmonad --restart") ] -- see http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Prompt.html#t:XPConfig myXPConfig = defaultXPConfig { position = Top , promptBorderWidth = 0 , defaultText = "" , alwaysHighlight = True , font = "9x15" } -- see http://xmonad.org/xmonad-docs/xmonad/XMonad-ManageHook.html myManageHook = composeAll [ className =? "Pidgin" --> doFloat , className =? "XCalc" --> doFloat , className =? "mpv" --> doFloat ]