How to work on external monitor with lid closed?

I have an external monitor connected to my MB Pro and would like to work with the lid closed. When I shut it, the monitor also goes to sleep. Yesterday I did something right and the monitor woke but I was able to keep the computer closed. Today it's not working. I use a wireless keyboard that also goes to sleep when the lid closes.
What's the procedure to keep the monitor awake while the laptop is closed?
System 10.6.8

Yes, I have done that and tried it over and over and it still won't work. The monitor went on for a few seconds and then went black again.
Is it possible to do this with a wireless keyboard? I do press the power key to try to wake to keyboard but nothing happens.

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how to use an external monitor with the "lid" closed

You can use your MacBook in Clamshell Mode with a wired or Bluetooth keyboard and mouse. http://support.apple.com/kb/HT3131

Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

You are referring to a feature called Clamshell Mode, please read Clamshell Mode setup for instructions.
BTW when posting when you use generalities such as "have tried everything" this tells us nothing. When posting please be specific and try to paint a complete picture. It just makes things easier for those trying to help you.

Audio & video via HDMI to an external monitor with lid closed.

I would like to run a Macbook Pro Retina (2014) with the lid closed and all video and audio via HDMI routed to an external monitor (Samsung Syncmaster from 2010). Is this possible? When I try this, no sound is transferred to the external monitor and I cannot operate the Macbook Pro with the lid closed. As soon as I close the lid, it cuts the signal to the external screen.
I’ve tried looking for previous posts but they’re about MCP’s connecting via Thunderbolt or DVI. Any ideas?

Seems like there may be two separate questions here. Audio working in either configuration and video from HDMI when lid closed. First, you are doing this with the Mac running off of AC, not battery, right?
Audio:
Is the HCMI cable you are using able to carry the audio? Some cables don't.
The only way I've ever used external displays with lid closed is with the thunder port (or DVI) adapter, not with the HDMI. I see the specs from Apple:
HDMI video output
Support for 1080p resolution at up to 60Hz
Support for 3840-by-2160 resolution at 30Hz
Support for 4096-by-2160 resolution at 24Hz
So have you tried varying the screen res to determine the results? I can find no specs regarding what ports remain operational in clamshell. Like you, I would have assumed all of them.
I suspect only the thunderbolt port would support your desired config -- try a thunderbolt/hdmi adapter.
Finally, clamshell mode doesn't allow the MBP to cool efficiently. Heat kills electronics, so if it's too warm or the fans really kick in, you might want to reconsider this setup.

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I wasn't sure where to post this question.
I have several laptops and use external monitors. I close the lid on the laptops and the display continues to work.
On the GT70, the system shuts down. It won't allow me to use the external keyboard and mouse or display the session.
Any suggestions if there is a configuration option to allow the GT70 to continue to function with external monitor and lid closed.

Yup. This is a windows setting. You need to go into your control panel -> power options -> "Choose when the computer sleeps" and "Choose what closing the lid does"
That should solve the problem. I currently have my GT70 hooked up to a 42" TV and I can close the lid and it stays on and the TV continues displaying as well. No problems. =]

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I have a brand new X1 Carbon (Generation 1 3444-CYU), and I also have the docking station. My intention is to be able to have the laptop cover closed, and to use the power switch on the top of the docking station to start (apply power to) the laptop, and to have the output be driven to two DVI monitors.
At this point, I'm able to have the laptp drive the main screen (part of the laptop) and the two external monitors, but I cannot seem to figure out how to use the docking station to "start/boot" the PC, and to have the bootup sequence, and other subsequent display presented on the two DVI screens only.
As I've been looking through the knowledge base, I'm surprised that there are not simply a series of articles that describe the various options for configuring monitors, so I'm forced to post this request. Can someone help?
thanks

I see this is an old post, but I figured I'd respond in case someone else is having the same problem.
There is a setting in the BIOS where you can have the X1 power on automatically when you plug it into the dock. I believe the setting is called something to the affect of "Power On When Connected to A/C." This solves the problem you and describing and I have been using with successfully with a dual monitor set up.

How to use external monitor with laptop closed

My external monitor goes to sleep when i close the Macbook Air lid. How do i stop that from happening?

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Built-in Isight for External Monitor with Macbook closed

Hello Apple Community,
I'm having trouble using my built-in iSight through my external monitor. My set-up is that the Macbook is closed and I run everything through an external monitor. I'm unable, however, to use that external monitor's iSight with any applications. They either say that there's no camera available or something along those lines. The iSight shows up in the system profile under USB, and I've tried resetting various things, but all of that seems geared more to the macbook than to the monitor. I've also woken up the macbook (where the iSight works fine) and tried mirror/non-mirror modes. When I use a camera-based application via the macbook, it doesn't give me an option of which camera to use, relying only on the macbook's. Is there a way to use the external monitor's camera instead?
Thanks,
Abe

Does one of these help you, Abe?
(1) Your Profile "Products" info shows " MacBook Pro, Mac OS X (10.4.1) ". If this is correct, you may be using an early MBP and/or display. Have you checked for the firmware update? http://support.apple.com/kb/HT3957
(2) Consider Apple's suggestions from the "If the built-in iSight camera, microphone, speakers, or USB ports on the display are not working:" section of http://support.apple.com/kb/TS2400
(3) If you are using a non-Apple external display, contact the seller or manufacturer for help.
Message was edited by: EZ Jim
Mac OSX 10.8.2

System hangs after using external display with lid closed

I often use my MBP with the lid closed with an external display and Bluetooth mouse and keyboard. When done in this mode, I put the system to sleep using the apple menu, then disconnect the monitor. I found some info on the apple site explaining that this was the recommended procedure for exiting the lid-closed mode.
However, sometimes the system doesn't go to sleep. Opening the lid, the LED goes out, but the display remains off. If I then try reconnecting the external monitor, nothing happens. It appears that it has gone into some mode where it is active, but no displays are enabled. My only resource at this point is to power the system off and back on, at which point everything is ok.
I'm wondering if turning off my bluetooth devices after selecting the sleep menu item is causing the system to reawaken at a bad time, causing this state to occur.
I have also run into problems when connecting an external projection monitor. On several occassions I have connected the external display adapter before turning on the projector, or before connecting it to the adapter, and the system locked-up hard (no mouse movement, etc). My only recourse was hard power off.
Any ideas? Is this a broken system or are these known OSX or MBP issues?

Try SleepLess…
http://www.versiontracker.com/dyn/moreinfo/macosx/17893
… or InsomniaX…
http://www.versiontracker.com/dyn/moreinfo/macosx/30315

How to keep unplugged macbook awake with lid closed

My macbook would stay awake while its plugged in with its lid closed, but it won't stay awake once its unplugged.
any suggestions?
thx!

Requirements for closed display mode:
Power adapter
External keyboard, mouse, or trackpad
External display
If any of these conditions are missing, then the closed MBA will sleep. So, unplugging the power will sleep the system.

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Click here and follow the instructions.
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I have a PB G4 Ti and have connected it to a second display. I have followed the articles on this site but nothing will wake the PB when the lid is still closed. has anyone got any ideas as to why this might be?
Thanks

I'm not sure what the articles say, but here's what I do to make mine work:
1) With the Powerbook shut down, connect the second display
2) Start it up - both displays should be working
3) log in and put the Powerbook to sleep by closing the lid
4) Wake the Powerbook by clicking a mouse that is connected directly to the Powerbook
Hope this helps,
Matt

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I have read several multiple monitor threads but could not get a clear solution to this.
Model: I have a T430s with Intel HD4000 graphics.
Desired set up: 2 External Monitors + Lenovo LCD
Problem: It seems that I can only drive one external monitor. I'd like to drive two external monitors, as I did previously with my T420.
What I've tried: I have a dock and have tried VGA + DVI for the external monitors, as well as DVI + DVI. Neither setup has worked. It always greys out the third monitor in the Windows Display options.
Any thoughts on how to drive two external monitors with the T430s? Clarity is appreciated. Thank you!

RobertWerner2 wrote:
If I'm reading the link you provided correctly, can I correctly assume that I CAN connect two external displays with just the W520 Laptop and NO docking station?
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How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

No, nothing will prevent the computer from going to sleep when you close its display except third-party hacks that are designed to do exactly that. I strongly advise against using any of those, as they may interfere with successful entry into clamshell mode (and they carry other downside risks as well). Just wait until the computer is asleep (with its sleep light pulsing), then press any key on the keyboard. It sounds as though your setup is working as it's designed to do.

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How to work on external monitor with lid closed?

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