Frozen Mac

Discussion in 'Mac Basics and Help' started by Emily Marklew, Nov 12, 2016.

  1. Emily Marklew macrumors newbie

    Emily Marklew

    Nov 12, 2016
    I have been successfully watching movies on my mac through a HDMI cord to my tv all afternoon, and as soon as I have disconnected from the cord the screen has zoomed in and is frozen. I have tried to turn it off and re-start, but it opens to the same screen each time. I cannot access any system preferences. PLEASE HELP.
  2. Zenithal macrumors 604

    Sep 10, 2009
    Have you tried running it through a defrost cycle?

    Jokes aside, OSX (and Windows) won't automatically realize where the output or input should be. It's a manual change. So if you're mirror your image or video source to another device, then you need to follow the inverse of your original steps.
  3. JohnDS macrumors 65816

    Oct 25, 2015
    Reboot holding down the command-option-p-r key combination until you hear the startup chime a third time, then release the keys.

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