Use PB with TV, lid closed but still sleeps...

Ok, I have a new TV that I want to use with my PB. I have an S-Video cable and audio cable hooked into the tv, I also have a wireless USB Reciever for my keyboard an mouse. I cannot close the lid of the laptop and keep it on. I try and wake it with keystokes on the keyboard and moving the mouse, but wont work. I try to start it, then close the lid, but once the ligin screen appears it falls asleep. How can I keep it on? I have it hooked up. or does it HAVE to have a DVI monitor to keep it alive?

the power was plugged in. It works now that I plugged in the DVI adapter that came with the PB. I plug that into the computer and leave the VGA side unplugged then keep everything plugged in. That seemed to work.
SO thanks guys!

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Mac book pro is very very slow/it hangs for even the smallest tasks/even with the lid closed it is still running if it is not completely turned off. Dose any one know what may be wrong ? and how to fix it?

More details about the problem : My computer is a Mid 2012 Mac Book pro 2.9GHz i7 processor with 8GB RAM updated to OS X v10.8.5
- I ran a compleet scan of my computer for any threats ( I used virus barrier express ) and there was nothing identified
- When I oppened the Activiti Monitor there are about 20-30 processes which I do not undersatand they are run under the user "root" 2 in perticular ( Kernel_task & fseventsd ) they both take up a lot of threads and kernel_task is constantly using 1.2 GB of "real memory" which is at least 20 times any other process that is running espesially the ones that run under the user "Apple" I do not know if this is causing the problems on my mac but i tryed to forces close it and it dose not even let me click the button, the others close but reopean immideatly. I will attach a screen shot of what i have mentioned here.
- The problems I am facing are mainly performance :- To state a few examples, my mac dose not seam to be able to handile even the smallest tasks like switching tabs on safari, typing any thing, playing a movie withought stopping inbetween, etc.. ( let me elaborate on why I said its not able to handil these tasks, it is because when I am trying to do any one of the afformentioned tasks inbetween the cursor becomes a rainbow collered spinning disk and I am unable to do anything for about 10 seckonds after which it starts to work again for some time before it happens again. )
- Another concern of mine is that my mac seems to be on even with the lid closed if I do not shut it down compleetly, if i just close the lid after some time the computer starts warming up, and the fan starts running. the battery is drained at the same rate or slightly less rate than it would have if i was using it normally with the lid opean. ( altough this is happning the screen dose not turn on untill the lid is opean again )
- I have only 300+ GB full out of my 750GB so i believe these are not issues caused by my mac's memory being full ( BUT THE FIRST TIME I NOTICED THIS WAS HAPPNING WAS WHEN MY MEMORY WAS ABOUT 720GB FULL WHEN THESE ISSUES FIRST AROSE I IMMEADITLY DELEATED 400+GB OF MY USELESS FILES THAT I HAD BEEN HORDING ALL OF WHICH WERE MOVIES ) that about covers it all PLEASE LET ME KNOW IF ANY ONE KNOWS WHAT TO DO.
Ps: I apoligize if I have given too many unrelevant details, not enough usefull information and or if i was just all over the place with my explanations but I am really frustrated and was hoping not to miss anyting. Please let me know if any information at all is required and ill do my best to provide it.
Thank You

Start with this comprehensive troubleshooting article:
https://discussions.apple.com/docs/DOC-3521
Look at this one for possible solutions:
https://discussions.apple.com/docs/DOC-3353
Ciao.

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You are referring to a feature called Clamshell Mode, please read Clamshell Mode setup for instructions.
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I have done some searching for tips on using the MBP with the lid closed and there is some conflicting information. I'm hoping people who use their Apple laptops in this way can help clarify a few things.
First, as I understand it, the MBP will operate with the lid closed if there is a connected power cord, mouse, keyboard, and external display. I plan to use mine with a Bluetooth mouse/keyboard. (More details from Apple can be found here.)
These are my questions:
1) I've heard people issue warnings about laptops overheating when running closed, but it seems Apple endorses using the MBP this way. Is heat really a problem, or are people just spreading misconceptions by predicting an early demise for a laptop used in this way?
2) Can the MBP be turned on/off when closed, or only put to sleep? I want to keep my MBP on a shelf that makes it inconvenient to open every time I want to shut down or power up. I suspect putting it to sleep will be good enough, but if I can shut down and power up without opening the lid, that would be preferable.
3) I've read that the MBP can be glitchy when waking from sleep in the closed-lid configuration. According to some people it sometimes won't wake up and requires at restart. Am I fooling myself into thinking sleep can replace shutting down?
Thanks.

1) As long as you don't place anything between the keyboard and screen, you should be fine. There have been worries about display damage due to heat rising up from the keyboard, but no substantiated reports of real damage occuring.
2) You can obviously turn the MBP off while closed by choosing Apple > Shut Down; powering back on requires pressing the power button. Another option would be enabling the Wake on LAN feature in Energy Saver preferences.
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regards remo

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This is useful but the MBA gets a bit hotter due to intake, but if you have the lid open + external screen it gets even hotter due to more for the GPU (processor) to do.
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We have an issue where existing XP laptops are targeted with SCCM 2012 OSD TS for upgrade to Windows 7. The laptops are in a docking station, with the lid closed. The laptops are going to sleep when the OSD is booted in WinPE, just before the
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Hi
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Prevent monitor off during OSD (AC power)
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Prevent hibernate during OSD (AC power)
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Thank you. However, we did put similar steps in our Task Sequence right after the "Setup Windows and..." step, but the issue we are having is that the "Sleep" occurs during the "Setup Windows and...." so it never reaches
anything after that step until the lid is opened.

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Hi Marvin,
Thanks for visiting Apple Support Communities.
Did you receive an email confirmation of your purchase? If so, you can use the steps in this article to report an issue with your order:
How to report an issue with your iTunes Store, App Store, Mac App Store, or iBookstore purchase
http://support.apple.com/kb/HT1933
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http://manuals.info.apple.com/enUS/iPhone_UserGuide.pdf

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I have a Lenovo v100 0763 laptop and I have this problem:
When I close my laptop lid, it goes to standby mode (I don't activate the hibernation mode) but it only lasts for 20-30 minutes when I can hear the (humming) sound of the machine starting again even with the lid closed.
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Use PB with TV, lid closed but still sleeps...

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