11 Replies Latest reply: Nov 20, 2013 11:10 AM by DaddyOooh
Mark Yaklich Level 1 Level 1 (5 points)
I have a new Macbook Pro and have it hooked up to an external monitor and an USB Apple keyboard in my home office. How am I able to power the laptop on without opening the display and have it display only on my external display? When I am at home I'd like to use my external monitor and not my Macbook display.

MacBook Pro 15", Mac OS X (10.6.6)
  • Niel Level 10 Level 10 (268,800 points)
    Power it up normally, sleep the computer as soon as possible, and use the keyboard to wake it up with the lid closed.

    (56146)
  • Mark Yaklich Level 1 Level 1 (5 points)
    Are there any issues (i.e thermal) with keeping the lid closed and still operating the computer?
  • Network 23 Level 6 Level 6 (11,865 points)
    Mark Yaklich wrote:
    Are there any issues (i.e thermal) with keeping the lid closed and still operating the computer?


    The large main vent is not affected by the closed lid because it's across the back; you can see it when the lid's closed. Under normal operation it isn't going to be any worse than running a Mac mini.

    It's possible that it might get too hot if you are always running apps that keep the CPU and/or disk running hot all the time. Also, you want to make sure that you leave sufficient room around the unit for air circulation, not shoving it into a narrow, tight shelf. Also maintain the gap below the case bottom (i.e. on a hard surface, not on a sofa or other soft padding).
  • DaddyOooh Level 1 Level 1 (0 points)

    How do I wake it up?  I power it up, close the screen down and it sleeps.  I cannot get it to simply wake up with the keyboard or mouse.  I have been able to close the screen without it sleeping occassionaly but very adhoc and not reproducable enough to make this work reliably.  Is there another secret to waking it up after closing the screen down?

  • Network 23 Level 6 Level 6 (11,865 points)

    DaddyOooh wrote:

     

    How do I wake it up?

    Normally, this is not supposed to be a problem. If an external USB keyboard is connected, pressing a key should always wake up the Mac right away. If it is a wireless Bluetooth keyboard, it should still work, unless you have disabled "Allow Bluetooth devices to wake this computer" in your Bluetooth/Advanced preferences.

     

    If there are no external input devices connected, there's no way to wake it other than cracking the lid open a little to press a key.

  • DaddyOooh Level 1 Level 1 (0 points)

    I have an external USB keyboard and mouse, and neither moving the mouse nor typing on the keyboard wakes it up.  I just have to keep playing with it until I get it to awake when I close the screen...very anoying.  I thought there might be another setting that I was missing.  Any other suggestions?

  • eww Level 9 Level 9 (52,975 points)

    For the computer to operate in closed-clamshell mode with an external monitor, keyboard and mouse or trackpad connected, the computer must also be running on AC power. It won't wake if it's running on battery power.

     

    http://support.apple.com/kb/HT3131

  • Network 23 Level 6 Level 6 (11,865 points)

    Oh yeah, I forgot about that one. Driving an external monitor on battery depletes the battery very very quickly, so they don't let you wake it in that state.

  • DaddyOooh Level 1 Level 1 (0 points)

    I am running on AC power and it still doesn't wake most of the time.  Anything else other than "it should".

  • Godoy12 Level 1 Level 1 (0 points)

    Having the computer with the lid closed is dangerous cause even when just browsing the web with flash content it starts heating up and I've heard about casess of melted displays. Besides, the wifi strength is reduced and you can't use the keyboard and the trackpad.

    So, for Lion users, it's possible to just use the external display with the lid open:

     

    1. In Mission Control Preferences activate one Hot Corner to put the display to sleep.

     

    2. Connect the external monitor and plug in the power source to your computer.

     

    3. Move the mouse to the Hot Corner to put the display to sleep.

     

    4. Close the lid and wait a few seconds.

     

    5. Open the lid and voila!

     

    Take care!

  • DaddyOooh Level 1 Level 1 (0 points)

    Thx....it's now working pretty well.