Resuming sleep from lid-closed mode?

Sorry if this has already been answered, but searching through the manual and 34 pages of previous posts didn't turn up anything.
When I get to work, I connect my MBP (in sleep mode) to my external monitor and then to my usb keyboard/mouse, which triggers the computer to wake up and go into lid-closed mode. I work all day with the lid closed.
The problem is that when I'm ready to leave at the end of the day, I cannot just disconnect everything and resume sleep mode for the transport home.
If I go to Apple/Sleep, it'll go to sleep for 1-2 sec, then re-enter lid-closed mode. If I unplug everything, then the computer stays in lid-closed mode and won't go to sleep. The only way to get it back into sleep mode is to disconnect everything and open up the lid, wait for the display to come on, then close it again. Time consuming measures like this clash severely with my impatience at getting out of the office.
Any tips on how to re-sleep from lid-closed mode without having to open the lid? Thanks in advance.

My impatience was my own undoing. Upon further testing, once the magsafe is disconnected, the laptop begins the routine to go to sleep. I'm a very happy camper now...don't have to open the laptop at all, and I get to reduce the rate of dimming of my laptop screen.

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Is it true that the Apple Wireless mice and keyboards are compliant as well?
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That's cool.. It's good to see they fixed it on the latest revision. The college ordered these right before apple's last upgrade to the MBP. These are the 2.33 GHZ Core 2 Duo machines. The tech did mention that I could take these to the nearest Apple store.. a 2 hour drive, and one of the people at the store could evaluate them and then decide if they should be fixed. No guarantee they would.. and according to him and my description.. "the behaviour is expected.."
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I may stew on this a few days and call tech support again..

Wakes from sleep when lid closed

i usually put my macbook to sleep by closing it. recently, it sleeps then a second later i hear the noise that it's waking. so while the computer is closed, the apple icon is lit as it's turned back on. ideas?

You might try the following procedure. I did it last night and I think it may have corrected the sleeping problem although at this moment I can't say for sure. A word of warning IF you do this procedure. It takes SEVERAL seconds and maybe even a minute to reboot after you do this 4-finger wave before the computer boots back up. A LONG time looking at a blue screen while I held my breath. This NVRAM procedure is buried toward the bottom in the link below. Since I read somewhere to do this procedure, I didn't get a chance to run through all the procedures listed in the link.
Reset NVRAM [Useful for: does not properly go to sleep; wakes from sleep while lid is closed; fails to wake from sleep]
A number of users report that resetting NVRAM resolves wake-from-sleep issues. In order to perform this process, shut down your Mac, then start it back up while immediately holding the following keys: Command, Option, P and R. Hold the keys down until the computer restarts and you hear the startup sound for the third time
http://www.macfixit.com/article.php?story=20070129234938244

MacBook Pro does not sleep when lid closed

Hi there. I recently upgraded my MacBook Pro from Snow Leopard to Mountain Lion. Before the upgrade my mac would sleep automatically when the lid closed. However, ever since I've upgraded, when I close the lid, my mac doesn't go to sleep. However, if my mac isn't plugged in (running off the built in battery) it goes to sleep. I looked through system preferences and I can't seem to find any settings relating to this, does anyone have any suggestion on what's happening and how I can fix it? Many thanks in advanced.

Test after each of the following steps that you haven’t already tried: Step 1 Apple menu > System Preferences > Print & Scan > Open Print QueueCheck all printers for unfinished jobs. Deal with any you find. Step 2 Apple menu > System Preferences > Energy Saver > Power Adapter > Wake for network access: uncheck. You may need to unlock the preference pane by clicking the lock icon in the lower left corner and entering your administrator password. Step 3 Apple menu > System Preferences > Energy Saver > Schedule > Start up or wake: uncheck. Step 4 Apple menu > System Preferences > Sharing: uncheck all boxes. Step 5 Disconnect all wired peripherals except keyboard, mouse or trackball, and monitor, if applicable. Step 6 Launch the Activity Monitor application. Select All Processes from the menu in the toolbar of the Activity Monitor window, if not already selected. Enter “powerd” (without the quotes) in the "Filter" text field. Select the powerd process and click the Quit Process button in the toobar (stop-sign icon.) In the sheet that opens, click Force Quit. You’ll be prompted for your administrator password. The process will be relaunched immediately. Step 7 Reset the SMC. Step 8 Boot in safe mode and log in. The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you clickLog in.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Safe mode is much slower to boot and run than normal. Don’t launch any applicationsat first. If sleep still doesn’t work properly, back up all data and reinstall the OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested. If sleep now works as expected, go on to the next step. Step 9 Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way. Step 10 If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment. If you still have the sleep issue after booting out of safe mode, post again.

Resuming sleep from lid-closed mode?

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