Ok I have a laptop with a broken screen which I wish to use with an external monitor.
I also want to use an external keyboard and mouse, and to be able to wake the laptop up from sleep with the external mouse and keyboard.
I have set closing the lid to do nothing in power/display settings.
I have also set to only use my external screen and turn off my laptop screen.
Problems I have are
If I close the lid, then open it again the laptop then the external screen goes off and the laptop screen comes on. If I unplug the monitor cable, then plug it back in then it reverts back to what I want (just external monitor on).
Waking the laptop up from sleep with the external mouse/keyboard works fine with the lid open but does nothing with the lid closed.
I want closing or opening the lid to not to anything.