I have a MacBook Air that the lid I left open. The screen was still on when I left it. In System Preferences, I set it to turn off the display and sleep after 10 minutes. But it didn't turn off. I know that because the next morning, all the battery ran out. Why didn't it sleep like the MacBook Air is supposed to?
EDIT: This is the result of the
pmset- g command in Terminal.
Active Profiles: Battery Power -1 AC Power 2* Currently in use: standbydelay 4200 standby 1 womp 1 halfdim 1 hibernatefile /var/vm/sleepimage darkwakes 1 networkoversleep 0 disksleep 10 sleep 10 (sleep prevented by coreaudiod) hibernatemode 3 ttyskeepawake 1 displaysleep 10 acwake 0 lidwake 1 –