I have an external monitor with 2 HDMI ports. When I step away from the computer, I lock the screen so my cat doesn’t mess stuff up when she rolls on the keyboard.
The problem is - the screen almost immediately goes black, and then my screen switches to my other computer, so I have to switch my monitor manually to go back to Unity. It’s very annoying. I’ve looked in System Settings, Tweak, and Unity-Tweak (why so many places?) but nothing seems to change this behavior. Help!