MacBook Air frozen on login screen, no keyboard solutions to restart will work. 2012 model, running Yosemite.
My Air was working normally, I shut it and then re-opened maybe 10 minutes later to find the usual login screen, but can't type anything in, the trackpad cursor doesn't show up anywhere, and I've tried every keyboard solution imaginable, with no results. Nothing I've done has changed the locked screen. Help!!
MacBook Air