Comment #5 on issue 456 by hramr...@gmail.com: xmonad partially eats key events comprising a WM shortcut http://code.google.com/p/xmonad/issues/detail?id=456 Can you, please, explain where it is stated that X generates key events at random without any relation to keys physically pressed on the keyboard? Searching around the Web I found a piece of Xlib manual detailing keyboard events here: http://tronche.com/gui/x/xlib/events/keyboard-pointer/keyboard-pointer.html It says that key events may lag if input processing is frozen but not that key events are randomly lost in X server. If you have a manual stating otherwise then please share where it is located. Otherwise I would say that the observed behaviour points to an issue with XMonad - the application is very capable of tracking the key state unless a key event is eaten by XMonad. Thanks