"Why does my MacBook Pro put itself to sleep while I'm working?"に関する回答I have my macbook pro in my lap right now, and it started doing this (going black). I took my two iphones out of my pocket and it stopped. If I bring my phones to the left side of my laptop, the screen goes black. But, I tried it again a few minutes later, and it doesn't go black. A few times, it went black when I put hand over to the left side without the phones. But, I'm wearing an apple watch (1st gen). Maybe the wifi or bluetooth communication triggers this. So, it seems like my watch and maybe also my iphones cause this.