MacBook will not sleep when lid is closed

I just noticed in the last few weeks that whenever I close my MacBook it will not go to sleep. I've had it only a year and protect it like a baby so I'm not sure what happened (maybe a recent update is buggy).
I've done some research and it seems that there are some problems with MacBook Pros but not so much with MacBooks.
Is there anyone out there that is having the same problem or has had the same problem and has fixed it?
I've tried reseting the SMC and PRAM and repairing the permissions...any other suggestions? I don't feel like going down to the Apple Store unless my baby is in immediate danger.
Thanks

Console.app will allow you to check various logs. The root system one should be reflecting any major issues, though be aware the description may not be in plain english.
Another issue I found is that certain classes of USB storage devices can wake the mac back up immediately after it sleeps on lid shut, especially external multicard readers (sd/mmc combo etc). If there is any USB equipment, try unplugging it all first before closing the lid and see if you have a different outcome.
Re,
Brad T.

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If the machine is asleep, lid closed, and you plug in to an external monitor and an external USB keyboard, the machine will wake, anbd reconfigure the screen resolution for the external monitor, Once it has made this configuration change, you can open the lid and it will continue to address only the external monitor. At least that's how my early MacBook Pro unibody 13" works. It seems to run a bit cooler this way. It gets quite toasty with the lid closed while doing anything demanding and you are more likely to hear the fan come on. I have not seen any temps that would cause alarm, but I do get a high speed (6000 rpm), noisy fan sometimes with the lid closed, .
If you operate in the open-lid, external monitor only mode, if you deactivate the monitor for any reason, when it reactivates it will be running both screens, with all the navigation hassles this entails, so I generally set it not to deactivate the screen when in this mode.
Thus I agree with those who say that some of the cooling air is drawn in around the keyboard, the difference in cooling performance is observable. If you activate istat pro, get the computer hot running in clamshell mode, and open the lid, you can watch the CPU temp drop by a few degrees C within a couple minutes. It isn't a huge difference, but enough the lower the fan speeds.

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Jack,
Welcome to Apple Discussions.
You need to give the Apple Authorized Repair center a call back and let them know what's going on. I've seen this before here on the forums, and it was attributed to a sleep magnet not being put back in. It's most likely this. Apparently, putting this magnet back in can be easily overlooked.
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Satellite P50t (PSPNVU-01E03W)
Similar to this one. Compare wth the spec.
Satellite P55t-B5262 (PSPNVU-00U00W)
Downloads here.
Change that setting, "Restart" Windows (don't shut down), restore the setting, and Restart again. Sometimes clears cobwebs in the registry.
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Hey everyone,
Until about 15 minutes ago I had my powerbook G4 set to sleep whenever I closed the lid. Well, now it does not want to.
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Similar issue after upgrade w my MBP (early 2011).
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Hi Steve,
Hmm, the lid problem is interesting - if the Powerbook doesn't wake up from opening the lid, however, then it's most likely a sensor problem, which as you found has an easy workaround. YOu could always go to the Power Section of the System Profiler and seeing if the "wake on Clamshell open" and "Wake on Clamshell Closed" are set to Yes and No respectively. If they aren't those settings, then resetting the Power Management Unit might help, or just reset the PMU and see what happens (info here: http://docs.info.apple.com/article.html?artnum=14449)
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I don't see this behavior at all, but I'm wondering how does he know it's on? When closed the screen virtually seals against the bottom. If the Apple logos lit up? If so then it's obviously on. If not then it's not on.
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Hello Community,
This is my first time using the forum. I have a macbook pro 13" 2009 model. Recently I had my MBP connected to an external monitor. I shut the lid while it was connected to the monitor and forgot to turn off my bluetooth mouse. Later that night the mouse was bumped, waking my macbook and setting it to clamshell mode. I put it to sleep again, opened the lid and woke it, but the LCD on the laptop did not turn on. I reset the PRAM and the NVRAM with no luck. I disconnected the monitor, rested the P/NVRAM and it would boot with the laptop screen and once everything was loaded my screen went black and then went to sleep on its own. I tried powering on and off using the P/NVRAM key commands...and nothing. So I opened the bottom case and physically disconnect the battery, reconnected the battery, put the bottom plate back on and powered it up. The screen began working again, now I have a new problem, the MBP WILL NOT sleep when I shut the lid anymore. I even reinstalled the OS and still no luck? If anyone has anything helpful that I could try to get this feature working again it would be much appreciated. If there is some terminal command I could try or some other troubleshooting method. I even put a magnet by the right side of the keyboard to try to trigger the sleep switch.
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I resolved my issue in a very unlikely way. In my earlier post I mentioned that I wiped my hard drive and was starting from scratch. Well I reinstalled windows 7 through bootcamp and it fixed my sleep issue. That's right folks...Windows fixed my mac. I think that it was an EFI issue. I think this because windows 7 uses EFI and during installation it must have reset the sleep values to normal. I feel when you reinstall Mac OSX the EFI partition on the drive should get wiped and reinstalled as well. I also feel that apple should have an option within System Prefs for the user to select what the way is that the computer responds when the lid is shut instead of the ritual of trickery and problems that the clamshell mode can cause.
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Hi,
My Mac will not sleep when it is charging. When I close my display, it will not sleep.
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AIGHT GUYS!
This is how to fix it, and i guarantee u its 90% the cause.!
first of all, if you are a lion user (most likely all of you with this problem) go to system preferences, and then to sharing. turn all sharing OFF. especially printers....
open a terminal, and type in :
pmset -g assertions
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Go to system preferences > Print & Scan > Open Print Queue. Make sure all the printing queues are empty and nothing is in there. You do not need to pause any or anything like that just make sure nothing is in the queue.
Close your macbook lid and look at ur light it should be sleeping. HOPE THIS WORKS FOR U
took me long enough to find out.
dont hesitate to ask me any questions

X120e does not sleep when lid closed

I found another similar post, however it was resolved by the individual reinstalling the operating system.
My issue is more complicated. I have made sure everything is up to date, all the settings that tell the system to sleep when the lid is closed are turned on. I have even turned those settings off off, just so I could turn them back on to make sure there wasn't something quirky about it.
I have tried restoring the system to factory settings using the recovery partition, as well as discs burned from the program that came with the computer. I have tried clean install from Windows 7, 8, and 8.1 discs.
The unit still does not sleep. I don't ever remembering it being able to. I once closed the display thinking it would sleep (power was plugged in). Woke up the next day, went to work for 8 hours, came back and felt that the system was really hot. Opened the lid and the screen was exactly as I had left it the day before.
When I first got the system in 2012, the screen did not work, so I actually had to send it to Atlanta, GA for repairs. It came back quickly, and it still did not work, so I actually sent it back to Atlanta, GA's repair center a second time in the same week. It came back working and I left it alone. I never tested the sleep/wake because I always just turned the system off when I was done with it, but now I am back in school and this little computer comes in handy, but I don't want to turn off the system manually going from class to class when I need to pack it away in my bag.
Could there be a hardware issue? Something inside not connected? This laptop works perfectly EXCEPT for the fact that it will not sleep when the lid is closed. It is out of warranty but had I known this was an issue while it was still under warranty, I would have inquired. This unit is in pretty fantastic shape, looks brand new too. No damage, never been dropped, and only ever handled by me (never loaned out).
How can I fix this?

Thanks for the reply, gat0gelat0.
Yes, those settings were the first things I checked. I also tried changing it to "Do nothing", then changing back to the sleeping option. It still does nothing when I close the lid.
I would like the functionality of it going to sleep when I close the lid for the convenience, like when class ends, I have to rush to my next class, I just want to close the lid, put it in my bag and run to the next class. Keyboard shortcuts like Fn-F4 work, but this laptop should have the functionality I am describing, and I want to figure out why it isn't working and how to fix it.
I suspect there is an issue with whatever is used hardware wise to sleep the machine. Either it's not being triggered, or it's not there, or it's broken. I've tried running a magnet around the bezel of the LCD screen as well as around the palm rest bezel and there is no activity as I've read that many laptops trigger sleep by interaction by a magnet. Still nothing.

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Hi
I've recently noticed that my Macbook will not sleep automatically, even when the power management is set to sleep at minimum (1 minute).
It will sleep if I do it via the menu, however if I walk away from the machine with the lid up, it just won't go to sleep.
I've tried switching everything off that could possibly be running in the background, tried from a new user account and also tried a power management and zapped the P Ram.
Up until a few weeks ago it's been running fine, don't know what's happened since, any help would be appreciated.
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mscpro
Thanks, i've pasted below some of the text that was shown in 'Console', the last line was repeated several times so i've only copied it once.
I have no idea what this means, except there is some sort of error, how would you suggest I proceed.
Mac OS X Version 10.4.11 (Build 8S2167)
2008-05-28 06:56:38 +0100
2008-05-28 06:56:38.801 loginwindow[67] FSResolveAliasWithMountFlags returned err = -43
2008-05-28 06:56:39.735 SystemUIServer[83] lang is:en
2008-05-28 07:04:44.405 SyndicationAgent[216] WARNING: BestCalendarDateFromString - can't interpret: 'Tue 27 May 2008 22:26:15 -800'
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Kiran

MBB Does Not Sleep When Lid Shut

My macbook does not sleep when I shut the lid. This happened recently after I had my fan repaired. I also updated the OS at the same time, so I'm not sure which triggered the problem.
I would have to manually select sleep before shutting the lid; and I would have to press the space bar after I've opened the lid to wake it.
The following thread applies to a MBP. Apparently my problem might be a faulty latch.
http://discussions.apple.com/thread.jspa?messageID=5325605&tstart=0
I've reseted my PRAM, but that didn't work. My machine has been in for repairs 4 times (Fan, Logic Board, and the top case has been replaced twice due to cracks).
I'm wondering if I should send it back to the service centre to have it looked at. Apparently, if this is not a hardware problem, it won't be covered under AppleCare, and I would be charge. So just want to make sure...

I tried doing this fix using the guide on http://ifixit.com to dismantle my MacBook and find the battery/lid detector cable which indeed seemed loose at its connector just next to the headphone jack, but when I reassembled the mac still does not detect lid closing and now it doesn't even detect the battery anymore! Yikes! Looks like a trip to the apple store is required anyway.

MacBook will not sleep when lid is closed

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