I have two external monitors connected to my macbook and the dock is on the very leftmost monitor. The non-dock monitor seems to think it has the dock because it will not allow me to expand windows into the area where the dock would be.

Additionally the monitor with the dock will expand windows fully right behind the dock.

I have tried moving the dock to this monitor and then away from it and disconnecting and reconnecting the monitor altogether but I have not restarted yet as I would prefer to solve this problem without a reboot if possible. Does anyone know how to resolve this issue?

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I am running macOS Catalina 10.15.3 on a 2016 macbook pro

1 Answer 1


I was able to resolve this by killing the Dock process (it will restart on its own):

sudo killall Dock

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