If you use your MacBook with external displays, you might want to use it with the display off but the lid open at some point. If so, today’s tip should help you accomplish this goal, with not one, not two, but three different ways to do so.
You can do this with the laptop lid shut, but with ever more powerful MacBooks out there, avoiding the heat that might build up in there is probably worth leaving the screen up, right? Leaving the screen up with the display off will let heat leave the Mac through the keyboard, and will allow the graphics processor give all of it’s power to the external screen, which is helpful if you’re working on graphics-intensive applications.