Comment #1 on issue 450 by max.thou...@gmail.com: ManageDocks should check for multi window types in _NET_WM_WINDOW_TYPE http://code.google.com/p/xmonad/issues/detail?id=450 Here's a simple patch which works for unity-2d-panel (from ubuntu) It's probably not the best way to do it, I'm really new to haskell diff -rN -u old-XMonadContrib/XMonad/Hooks/ManageDocks.hs new-XMonadContrib/XMonad/Hooks/ManageDocks.hs --- old-XMonadContrib/XMonad/Hooks/ManageDocks.hs 2012-02-07 11:58:41.000000000 +0100 +++ new-XMonadContrib/XMonad/Hooks/ManageDocks.hs 2012-02-07 11:58:41.000000000 +0100 @@ -111,7 +111,7 @@ desk <- getAtom "_NET_WM_WINDOW_TYPE_DESKTOP" mbr <- getProp32s "_NET_WM_WINDOW_TYPE" w case mbr of - Just [r] -> return $ elem (fromIntegral r) [dock, desk] + Just l -> return $ any (\x -> elem (fromIntegral x) [dock, desk]) l _ -> return False -- | Whenever a new dock appears, refresh the layout immediately to avoid the