Keep MacBook Operational When the Lid is Closed

Discussion in 'MacBook Pro' started by ADubin, Feb 17, 2010.

  1. ADubin macrumors newbie

    Nov 19, 2009
    I just connected my 15" MacBook Pro to an external monitor and purchased a keyboard for my MacBook. I also attach a mouse to my MacBook. When I close the lid completely the MacBook stops displaying on my external monitor. Is there a system preference or something else that I can change to prevent this from happening? I'm hoping to use my MacBook as my desktop too. ADubin
  2. TheStigger macrumors newbie


    Jan 28, 2010
  3. MacModMachine macrumors 68020


    Apr 3, 2009
  4. -Ryan- macrumors 68000

    Jan 28, 2009
    There's two possibilities. One; you can hit a key on the keyboard or external mouse to wake the computer and use it as you would a desktop. This is because the Macbook goes to sleep when you close the lid. Second; you can use a program called InsomniaX to stop the Mac from going to sleep when you close the lid, thus carrying on as before.
  5. m85476585 macrumors 65816

    Feb 26, 2008
    You can remove the sleep magnet from the lid.
  6. jmann macrumors 604


    Dec 8, 2007
    bump on a log in a hole in the bottom of the sea
    You can also download a program called Caffeine that will do roughly the same thing that InsomniaX does, but with the press of a cute little button.
  7. djrod macrumors 65816


    Sep 16, 2008
    Madrid - Spain
    The problem with insomniax is if you say don't sleep the MBP, and close the lid, the screen of the MBP won't be turned off..

    What I do is connect the Cinema Display to the MBP, close the lid and click the mouse till the Cinema display switches on remaining the MBP screen turned off, then I open the lid so the MBP doesn't get hot.

    Apple says something like I just said:

    Yes, is a pain in the ass.
  8. opera57 macrumors 6502

    Feb 15, 2009
    When I used to use my MBP with an external monitor when the lid is closed I used to open the lid, turn it on, then quickly close the lid again and it would output the video to the external monitor and have the laptop screen turned off. Alternatively I would shut the lid and it would wake up using a keyboard or mouse connected, although that didn't always work... :/ [​IMG]
  9. ADubin thread starter macrumors newbie

    Nov 19, 2009
    Problem Solved


    You recommendation of a hitting a key on my external keyboard when the lid down on the MBP solved my problem. Thank you very much for your quick response.

  10. vant macrumors 65816

    Jul 1, 2009
    You can turn off your MBP screen by setting the brightness to 0 when it is connected to a monitor.
  11. Eddyisgreat macrumors 601

    Oct 24, 2007
    If the machine is brought up from sleep with the lid open then the display will remain in play until the user changes the configuration. If you turn down the brightness all the way to zero you can still see the actual LCD is active.

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