[xmonad] XMonad.Actions.UpdateFocus doesn't work

[Kilian Evang]

Hi,

documentation for XMonad.Actions.UpdateFocus says it "Updates the focus
on mouse move in unfocused windows." However, for me (using Ubuntu
16.04, xmonad installed from Ubuntu repository), it doesn't seem to have
any effect.

Here is my minimal xmonad.hs:

    import XMonad
    import XMonad.Actions.UpdateFocus

    main = xmonad $ defaultConfig {
        focusFollowsMouse = True,
        startupHook = adjustEventInput,
        handleEventHook = focusOnMouseMove
    }

Any idea what's wrong?

Cheers,
Kilian