How Do I keep my external Monitor on when I close my MBP laptop cover?

Question

How Do I keep my external Monitor on when I close my MBP laptop cover?

I purchased an external monitor and hooked it up. However, when I close the cover of my laptop, the monitor goes black. I tried the Display settings under preferences and there doesn't appear to be any configuration options.
Hopefully someone can help me with this. Hope all had a great thanksgiving holiday.
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Imac G5 (non Intel) and Macbook Pro, Mac OS X (10.5.8), Leapord on both

Posted on Nov 28, 2010 10:23 AM

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Answer 1

Best reply

captfred

Level 7

26,422 points

Nov 28, 2010 11:52 AM in response to William Huisking1

First you need an external keyboard and mouse. Here are the rules for clamshell mode:

http://support.apple.com/kb/ht3131

Regards,
Captfred

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Answer 2

Nov 28, 2010 2:51 PM in response to captfred

Dear Captain Fred,
I do have those items and plugged them in. I also made sure that the laptop is connected to power.
The Monitor clearly mirrors what is on my laptop screen but as soon as I shut it, the monitor goes blank and the message "no signal" shows up. I move the mouse AND I click the keyboard and it does not wake up. I do have a Macbook Pro so I can't figure out why it won't go into the clamshell mode.
Any other suggestions?
Thanks,
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Answer 3

Nov 28, 2010 3:07 PM in response to William Huisking1

I have to correct my last addition. I rebooted the entire system and it does work. Sorry for the inccorrect post. It works fine now.. Thanks for the assistance and help.
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