OS X 10.8 Sleep on lid close with external monitor

I have just upgradet to 10.8 Mountaiun Lion and i have noticed a strange bug.
When I have attached my secondary monitor and i close the macbook it doesn't go to sleep.
The laptop monitor is turn off, the main still remains working and no sleep.
How can I sleep my MAC when i close the laptop with attached secondary monitor ?

I have a comment and a question:
Comment: I can connect to my Dell monitor that supports 1920x1080 using either DVI or HDMI and get the full resolutions of 1920x1080 no matter what (at least that is what Mountain Lion reports). Any video I watch seems to be at just fine when viewed at a distance or up close. Granted that the monitor is not 51" like yours, but still...
Question: For my own knowledge, how are you determining that you are seeing the video at a lower resolution? I am curious because I don't notice this, and can't figure out how it could happen unless the source was 720p instead of 1080p. Can you give me some pointers on how to check for this?

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Yosemite: Turning off Macbook Pro screen (lid open) with external monitor connected

Here we go again, this worked pre-Yosemite. Now it seems this trick no longer works. After following these steps again the screen on my Macbook Pro now turns on after logging in and opening the clam shell.
Anyone figure out/know a way to turn off the screen on the Macbook Pro with external monitors plugged in? (yes, closing the clam shell–but I'm referring to keeping the clam shell open with the display turned off)
http://gizmodo.com/5938452/a-trick-to-make-using-an-external-monitor-with-your-m acbook-way-better
To execute in Terminal:
sudo nvram boot-args="iog=0x0"
To undo in Terminal:
sudo nvram -d boot-args
Once you type it into terminal I believe you need to enter your password. I then restart my machine. Now the TRICK is to either restart your machine with the lid already closed (hit restart then slam the lid!) OR turn the machine on for the first time (then quickly slam the lid!) once you are past the login screen you can open the lid.

Has anyone experimented with tip 2 (active corners)? Perhaps it still works.
http://www.cultofmac.com/176329/turn-off-internal-lcd-display-of-your-macbook-ai r-os-x-tips/
Κοσμά τι λες; Τα έχεις μπερδέψει. Άλλο συζητάμε εδώ. Το ότι δεν μπορείς πια να δουλεύεις μόνο με την εξωτερική οθόνη (να έχεις σβηστή την ενσωματωμένη οθόνη όταν έχεις συνδεμένη εξωτερική).

Screen sleeps during Media playback (With external monitor connected)

Here's a weird one...
With no external screen connected to my T410 I can watch the BBC iPlayer without the screen 'sleeping' after 5 minutes, which is perfect..... as I don't want the screen dimming and then going into power save mode while watching anything.
However when I connect an external monitor, in Extended desktop mode, whenever I watch the iPlayer the screens shut down after 5 minutes.
Im sure there's a setting but just cannot find it.
Any help appreciated
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Has anyone experimented with tip 2 (active corners)? Perhaps it still works.
http://www.cultofmac.com/176329/turn-off-internal-lcd-display-of-your-macbook-ai r-os-x-tips/
Κοσμά τι λες; Τα έχεις μπερδέψει. Άλλο συζητάμε εδώ. Το ότι δεν μπορείς πια να δουλεύεις μόνο με την εξωτερική οθόνη (να έχεις σβηστή την ενσωματωμένη οθόνη όταν έχεις συνδεμένη εξωτερική).

MacBook Pro, 27" Apple Display won't sleep on lid close with Lion

I upgraded to Lion last week and one of the last things I need to fix is this. Here are my specs:
MacBook Pro - early 2009
27" Apple Display
Lion 10.7.2
What isn't working: Under 10.6 I had the 27" set as my main screen. When I closed my MBP lid, the computer would go to sleep. Now under Lion closing the lid only moves all windows from the laptop to the 27" display and the computer stay awake. So far the only work around is option/command - eject to put the computer to sleep, then closing the lid. I would like to fix this if anyone has any suggestions. Thanks in advance!

this is the way lion works...
send your feedback to apple and hopefully they could address this however it sounds like you found a work around already.
http://www.apple.com/feedback/macosx.html

Using the GT70 with external monitor and lid closed

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. =]

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds.

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds. This only happens when using the external monitor. Does anyone have any suggestions?

Mine does that too. The worst thing is when it goes to sleep, then wakes up and keeps running while the lid is closed and it is wrapped up in a case. I am afraid when the hot weather comes it is going to burn up. I am hoping Apple fixes it in the software or they may have a melted MBP to replace.
Then when I open the lid it is crashed running at fill tilt, pumping out heat to beat the band. I am forced to hold the button down and reboot.
I wiped my hard disk and reinstalled my OS, but it didn't help. I reversed my OS to 10.5.0 and it solved the DVI problem but still won't sleep. This post will probably be deleted by Apple, they did it a few days ago. I just don't know what to do, and I consider myself a real Apple expert. Just hoping you realize you are not the only one.

MacBook Pro keeps going to sleep in closed-lid mode and external monitor

I am trying to run the MacBook in closed lid mode with an external monitor. It seems to work fine at first, but after about 10 seconds, it goes to sleep. I can wake it back up but it just goes to sleep again.
Has anyone seen this before?

I figured it out. Apparently you can't run in closed-lid mode on battery. I plugged in the power adapter and it's working fine now.

Closed lid, connected to external monitor with no image...

So I followed the directions on Apple support regarding setting up a Macbook Pro (Early 2008) to an external monitor. I'm using a Gateway FPD2275w (if that helps) connected to the DVI-VGA adapter, or whatever Apple calls it. I'm using a Bluetooth mouse and keyboard and have set the option to wake the Mac from sleep with them. I've set the display to mirror, though it doesn't seem to matter what I set that option to. WHen I close the lid the Mac goes to sleep and the external display goes to sleep as well, but when typing on the keyboard it shows on the screen, when I open it up again. Any thoughts?

You must also have an external USB or BlueTooth keyboard connected, not just a display. Alternatively, you can try the third-party utility InsomniaX - VersionTracker or MacUpdate.

MacBook Pro won't sleep with external monitor

Hello,
have a problem. I'm using external monitor with my MacBook Pro. If I close the lid, I see all windows on external monitor and Yosemite won't sleep. Can you help me please? My external monitor is Samsung 21.5" and I'm connecting it to MacBook Pro via DVI.
Thank you

Hey Renecek,
My first thought was, "Hey, you are using closed-clamshell mode".
How to use your Mac notebook computer in closed-clamshell (display closed) mode with an external display - Apple Support
But then I realized, wait, you want it to sleep.
For that, check out the suggestions in these articles.
OS X Yosemite: If your Mac won’t go to or stay in sleep
OS X: When your Mac doesn't sleep or wake - Apple Support
Take care,
Nubz

Running with lid closed, no external monitor?

Is it possible to run with the display closed without having an external monitor connected? Closing the display without external monitor hooked up always seems to cause computer to go to sleep. Do they do this for heat reasons?

It is just a feature when you close the lid the comp goes to sleep. If you have a external keyboard have you attempted to wake your laptop by pressing a few keys? I know this will wake the laptop if you have a external monitor connected, you may also just click the mouse button to.

T500 Closing Laptop Lid but no External Monitor Output

Hello everyone. I have a Lenovo T500 (WInXP) with an external monitor. I usually just want to use that external monitor and not the one for my laptop. However, every time I close the lid, the output to the monitor disappears a few seconds later. I've used google and searched this forum and found something similar, change the power settings. I changed it so it would "Do nothing" when the lid is closed. However, this does nothing and doesn't help me.
Is there a registry I have ti change?
Related links I've look at and tried
From Knowledge Base:
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/Configuring-a-ThinkPad-T500-to-run-with-the...
Another person
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T500-goes-to-sleep-with-lid-closed/td-p/307...
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I didn't see if your connected to power? there are different settings for both power and battery.
There are also bios settings for the display, since I am using my T500 now with an external LCD I have it set to external display or something like that. Its worth a shot.
BIOS>>CONFIG>DISPLAY read the output options.
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Sleep mode with external monitor

I've noticed that if I'm using my Macbook connected to an external monitor then sleep mode cannot be initiated by simply closing the lid.
The system starts to enter sleep then bounces out of that mode and remains running (with the dock having moved to the external screen)
Initiating sleep thru' the on/off button seems to work.
Isn't this what Beta versions are for?

Hi Ruby326,
Welcome to the Apple Support Communities!
This does sound like a very frustrating situation. I understand that your keyboard and trackpad not responsive after waking from sleep and you are forced to shut down to get them to respond. In this situation I would recommend resetting the computer’s PRAM and testing fresh. Please read over and follow the instructions for this process in the attached article.
OS X Yosemite: Reset your computer’s PRAM
Have a great day,
Joe

Working Flex 2-14 with external monitor an keyboard with closed lid

Hi everybody, at home I have an USB-3-Hub for my Flex 2-14 where LAN, external Monitor, external Keyboard, Mouse, Sound, BlueRay and so on is plugged in. So the main time I use the Flex 2-14 at my Desk at Home with this usb-hub like a docking station. The main difference to a real docking station is, that I have to open the lid everytime to push the power button. When running, I configured Windows 8.1 in the way, that I can close the lid without consequences, but I search for a way to turn in on without opening the lid before. Also wake on Keyboard or even wake on mouse could be an alternative, but I also didn't find a way to aktivate that (neither in the bios, nor in Windows 8.1). An other alternative may be to turn it on because of opening the lid (because in Windows there ist is possibility to shut it down when closing it, so truning it on and off without pressing any button may be another possibility, but I also didnt find a soultion for that. Somebody out there who can help me? Thnx!

Update:
It seems that the latest version of OS-XLion (10.7.2) now prevents the use of portable computers (such as my MacBookpro) in a vertical docking station such as the Henge Docks unit I have beenusing for the past few months.
To operate the MBP in ‘clamshell mode’ nowrequires the external monitor, wired keyboard, and mouse to be connected before the computer is closed,otherwise it will not recognize the external monitor etc.:
(http://support.apple.com/kb/ht3131)
This means that it cannot be closed theninserted into the dock, then be expected to work with an external display…
I contacted Apple support about this, the person I spoke with seemedknowledgeable enough and agreed that apparently the only way around this wouldbe to reverse the OS updates, which I do not want to do either. They suggestedI send feedback via the Apple website, which I have done.
Any other Henge Docks users out there experiencing the same issue?

Sleeping Macbook Pro with External Monitors: Bluetooh prevents and annoys.

I have a 2007 Macbook Pro.
Recently I decided to go all wireless and now have a bluetooth mouse and a bluetooth keyboard, as well as external monitors. Here's the problem.
1. I like to keep my macbook pro closed and use the external monitors alone.
2. That means that I need to have the "Allow bluetooth devices to wake this computer" option selected.
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4. I would like the bluetooth KEYBOARD to wake up the macbook pro, but NOT the mouse.
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Any ideas? I do not want to switch to a USB mouse or keyboard, nor buy a different mouse or keyboard. The keyboard is an apple wireless bluetooth keyboard, the mouse is a high quality bluetooth Microsoft keyboard.
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Anyone?

Sleep causes prob's with External HD + some apps

Lately when I wake my mini up from sleep mode, it gives me the error message saying that my external device (an external USB HD) was improperly disconnected. (All the connections are just fine.) This just started happening recently, but it happens all the time.
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If a FireWire drive is powered off or disconnected without first being Ejected, you would also see that message. In some cases, that can result in the partition map of the FireWire drive becoming corrupted, requiring that one use data recovery tools or services — such as discussed in my "Data Recovery" FAQ — to recover the data on the drive.
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Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

OS X 10.8 Sleep on lid close with external monitor

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