A couple of weeks ago, I opened my Macbook Pro as usual. The keyboard lit up, as usual. I waited – there’s that pause while the display gathers itself (it’s a 2012 model) and the processor pulls everything together and presents the login window.
Except this time, nothing. The display didn’t light. There was the quiet sound of the fans going, but nothing. Oh dear. Closed the display, opened it to catch it unawares – no, that wasn’t going to fool it. After a bit more futzing around, I concluded that it was not in the mood to work. But I had work to do, and so I turned to my iPad Pro.
Källa: Life on an iPad