T61 won't sleep on AC Power

I have a T61 with Windows Ultimate, 3GB memory, 100GB disk
I cannot get this computer to sleep on A/C power. I have tried every power setting and advaced power setting I can find. It sleeps on battery but it won't sleep when plugged in.
Does anyone have any thoughts?

ACPI driver from lenovo tell allows a windows unit to use the hibernation feature of a unit.
That can be found here.
The other piece of software from lenovo is the power managment program. This gives advaced controls and provides an interface for sleep hibernation...etc.
That can be found at the links below.
->click here for XP
-> click here for Vista.
For hibernation it does require a bit of HDD space to commence, so if you are low on HDD space try to free a bit up(equal to the amount of memory you have)
If reinstalling the above does not solve problem please attempt to provide as much detail as possible about the unit's configuration.

Similar Messages

T61 with Win 7 RTM won't sleep on AC power, will sleep on battery power

Wanted to start a new thread on this since the previous similar thread discusses the Win 7 beta and other issues while I and at least one other person have this same problem with Win 7 RTM.
My T61 (8891-CTO) will not go to sleep / suspend when plugged in on AC power running Win 7 RTM and current Win 7 Beta Drivers. It will Hibernate on AC power. It will sleep / suspend fine when on battery power.
When on AC power, the screen will dim when I try to get it to sleep but it will never actually suspend. Moving the mouse turns the display back on and gives the Windows login screen.
Since everything else is working fine and sleep works on battery power but not AC, I have to assume this is a driver issue.
Any help appreciated.
Thanks,
Michael
Solved!
Go to Solution.

I figured out what was causing the problem on my system, so maybe this will help someone else.
The Windows Media Player Network Sharing Service was preventing my T61 from sleeping. I stopped and disabled this service. Sleep is working great now.

My macbook pro won't sleep - if I select sleep it does so initially, then the disc-drive appears to kick in and it comes back to life. It also won't turn off (again, the disc drive kicks in) unless you hold the power-button down for a long period.

My macbook pro won't sleep - if I select sleep it does so initially, then the disc-drive appears to kick in and it comes back to life. It also won't turn off (again, the disc-drive kicks in) unless you hold the power-button down for a long period. Help?

Hi a,
Try an SMC Reset: http://support.apple.com/kb/HT3964

MB: Won't sleep when lid closed and power connected.

Upgraded to Lion a few days ago and everything seems to be working great besides one thing:
When I close the lid on my Macbook (mid 2009) and the power is connected, the light remains on and the computer won't sleep. When i lift the lid everything is how I left it with no blink of the screen as it fires back up. However, when the power is disconnected, the computer sleeps fine when the lid is closed.
How can this be solved?
Thanks!!

OK, think I found my problem.
I had to send my laptop in for repair due to a faulty screen. When I got it back it all looked OK so the first thing I did was install Lion. Then I noticed the sleep issue so assumed it was Lion causing it. I tried the pram, SMC other settings but nothing helped. In the end I reinstalled Snow Leopard, same problem! I tried from bootcamp and same problem, wouldn't sleep when closing the lid.
Doing some googling I found a post where someone has the magnet in the display fail, which is what contacts a switch in the laptop when you close the screen. To test they suggest placing a paper clip on your screen bezel until it sticks to find the magnet, then finding where it locates when closing the screen on the laptop. Then run a small magnet (i used a small fridge one) over this location on the laptop with the screen up. I did this and instantly went to sleep!!! WOOHOO! remove magnet it wakes up, repeat and OK. Close screen without magnet and nothing.
So its gone back in for repair to have the screen replaced again.

Macbook won't sleep with power adapter plugged in

Hi,
My Macbook has stopped going to sleep if the power adapter is plugged in.
I have the power adapter energy setting to sleep after 30 minutes. When I got the Macbook (about a month ago) the thing would sleep until I pressed the spacebar.
Now, the screen blanks but otherwise the Mac remains awake.
If I close the lid the Mac immediately goes to sleep.
I have reset the SMU but this didn't fix the problem. I also checked disk permissions and verified the disk in Disk Utility - all good.
Suggestions?
Thanks,
John

my MacBook has also stopped going to sleep with the power adapter plugged in or when using battery power, unless I close the lid. Did you ever figure out the problem? Did you try calling Apple Care?
thanks,
Liz

How to wake from sleep only with power button

Hi,
I still use this old PowerMac G4 (hopefully Apple builds a new MacPro soon!) and when not using it, it is in sleep mode.
Unfortunately my cats like to touch the keyboard, thus waking up my Mac.
Is it possible to wake the mac only by pressing the power button?
If so, how?
regards
kpgkpg

The USB bus is unique from other buses in that it always has power present to it.
Because of this, it can be used to sense activity at a keyboard or other input device to facilitate wake from sleep.
The power button also always has power present, with the main purpose of on and off being extended to options for sleep and wake. This is possible due to the use of a momentary contact switch, with fuction that can be interpreted (time held) for various purposes via software.
why the action on the USB bus has to be a keyboard inpput, but not a mouse click. strange.
Mouse click should also wake the machine if the mouse is USB. If Bluetooth, an option must be selected in the software, and then not all mice are equal.
If wireless, then, again, not all are equal. Some will wake a machine, others won't.

My MBP won't sleep HD, and I have tried every solution already posted.

This is a persistent problem that began over 1 year ago, so information about how this unit might have been configured when it began is no longer available, but I have scoured this and google in general, using all search terms I can think of and still I can not pin point a reason my HD will not sleep. I have been advised that there is a "process" keeping my unit awake, but I don't understand how that is possible when it won't even sleep when it is on the startup screen. So here are some particulars.....maybe you have some new thoughts?
I drive a MBP with a 2.4 Core Duo processor running OS 10.9.1, 5gb of mem, 750gb of storage with 500+ free.
1) I made a clean install of system software and a clean upgrade to Mavericks (as a way to try to solve the problem which began when I was using Mtn Lion). There is no third part software loaded onto the machine, yet.
2) I have yet to launch iTunes, or iPhoto, or a Browser, no printer has been added.
3) The result is the same regardless of user or preferences. It does it in "safe mode". The Terminal doesn't give any reason for aborting sleep using "pmset -g" command. It just has a "10". Bluetooth is turned off, notifications are turned off, sharing is turned off, airport is turned off...it's not even connected to the internet. The only software on the computer is the system. There are no peripherals.
4) It won't sleep even on the start-up screen. It won't sleep if I go through the menu or close the lid. It will power off the monitor, and begin to wind down the HD, but just as it reaches the end of the sequence BING and the screen comes on again. If the lid is closed, it will stay that way until the battery runs out, unless it's plugged in. SMC and VMRAM resets not effective.
5) I have no files on this computer so I don't care about losing them.
6) This computer did not have this problem using Snow Leopard, and even worked for a time using Mtn Lion and changing to Mavericks has not affected the problem which leads me to think it's not OS related. It acts like a firmware issue, but as far as I can find there is no firmware upgrade for my unit.

Hello Bobz,
Thank you for responding. You require that I modify #2, above. I have now gone on internet, opened Safari. I downloaded etrecheck, restarted, waited for computer to cycle through sleep cycle (1 min). After failure, I ran etrecheck. Here are the results:
Hardware Information:
          MacBook Pro (15-inch Early 2008)
          MacBook Pro - model: MacBookPro4,1
          1 2.4 GHz Intel Core 2 Duo CPU: 2 cores
          5 GB RAM
Video Information:
          GeForce 8600M GT     - VRAM: 256 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 0 days 0:29:13
Disk Information:
          ST9750420AS disk0 : (750.16 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    inni (disk0s2) /: 749.3 GB (353.92 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information:
          Apple Inc. Built-in iSight
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Computer, Inc. IR Receiver
          Apple, Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
Launch Agents:
User Launch Agents:
User Login Items:
          None
Internet Plug-ins:
          Default Browser: Version: 537 - SDK 10.9
          QuickTime Plugin: Version: 7.7.3
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
3rd Party Preference Panes:
          None
Bad Fonts:
          None
Old Applications:
          None
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               5%          WindowServer
               2%          EtreCheck
               0%          mds_stores
               0%          mds
               0%          imagent
Top Processes by Memory:
          61 MB          Finder
          51 MB          mds_stores
          46 MB          WindowServer
          31 MB          mds
          31 MB          Dock
Virtual Memory Information:
          3.75 GB          Free RAM
          617 MB          Active RAM
          130 MB          Inactive RAM
          530 MB          Wired RAM
          218 MB          Page-ins
          0 B          Page-outs

Display won't sleep after being in suspend once.

When rebooting the computer, the display sleeps after set interval and can manually be put to sleep using shift+ctrl+eject.
However if the computer goes to sleep or I myself close the lid to make it sleep, the display won't sleep again.
The display won't sleep after set interval in power settings and when I press shift+ctrl+eject the keyboard backlit turns off but the screen stays on.
The only way to make it sleep is to close the lid.
I have tried resetting SMC and NVRAM but to no avail.
I have the first generation aluminium macbook.
Does anyone else have this problem?
I have had this problem both in 10.6 and 10.8
Regards Robin Hansson

When rebooting the computer, the display sleeps after set interval and can manually be put to sleep using shift+ctrl+eject.
However if the computer goes to sleep or I myself close the lid to make it sleep, the display won't sleep again.
The display won't sleep after set interval in power settings and when I press shift+ctrl+eject the keyboard backlit turns off but the screen stays on.
The only way to make it sleep is to close the lid.
I have tried resetting SMC and NVRAM but to no avail.
I have the first generation aluminium macbook.
Does anyone else have this problem?
I have had this problem both in 10.6 and 10.8
Regards Robin Hansson

Macbook Pro won't sleep properly.

Hello;
I have a problem with my mid 2009 13'' MacBook Pro that won't sleep properly.
Whenever I close the lid, or chose ->Sleep, it takes a few seconds and the system sleeps (fan off, led fading off) , but INMEDIATELY after just a few miliseconds, the system wakes up again (fan on, led on, hdd spinning).
This sequence happens again and again indefinitely (sleeps / wake / sleeps / wake, and so on...)
Then I open the lid and everything works as expected.
So far I tried all this, with no luck:
- I've installed a clean Mountain Lion from scratch.
- The system is untoched: no new apps installed, no new drivers installed.
- All sharings are disabled.
- Bluetooth is disabled.
- Infrared port is disabled.
- There's nothing attached to the computer except from the magsafe cable.
- There are no background processes preventing the system from sleep (checked using "pmset -g assertions")
- There is no disc loaded in the optical unit.
- "Wake for network access" is disabled in Preferences->Energy Saver.
- SMC y PRAM reseted several times.
As you can see, I don't know what else to try...
I would REALLY appreciate any help or suggerence.
Thanks in advance,
Nicolas.

A SMC will not have any results with this, in my past experince. Surprisingly the loginin items is the usual culprit. Try option, command, delete (don't hold these keys ,just press them)and wait till it goes to sleep, and stays that way. Then if it stays aslep try closing the lid. Disconnect all peropherals. Try system preferences>energy saver, make sure comouter sleep is ot set to never, as well as the display on both power adapter and battery. On the same pane, click schedule and make sure the start up or wake is not clicked. Also try a Ssfe boot: Power off, power back on holding the shift key, coninue to hold the shift key till you see the progress bar.This will disable all 3rd party software (it some times fixes some stufff) try the sleep menu under the Apple, or the option,command,delete. Hope this offers some help. If yourMBP is new, less thsn 1 year old, or you have Applecare, I would let them deal with it. You have a warranty,USE IT! All the best
Close all applications/operations.
You ca try a pram reset for the heck of it, in case there is somrthing strange in there that needs to be flushed.
Pram reset: Power off, power on, hold the following keys before the start chime. option,comman,P,R (no commas) and continue to hold the keys till you hear thestart chime 2 times then relesase.Reboot.
Good luck

Mac won't sleep after adding Kensington Wireless Mouse

I've added a Kensington PilotMouse Laser Wireless to my system and now it won't sleep, without first switching off the mouse. Kensington has no info on this, is there a workaround?
PowerMac G4 (Dual 867) Mac OS X (10.4.4)

The "sleep" that you describe is not sleep. Your mac has crashed but since it thinks it is sleeping there is nothing in the crash logs.
Sleep on modern computers is not just a hardware shutdown. Because X and XP are server based kernels they are designed to run 24/7 and do what they can to keep it that way. Deep sleep requires an orderly shut down of processes and loading their status into memory so that when it wakes, all is as it was.
There are many things that can prevent sleep. Usb devices are designed to wake a mac on a change of state (doing something). When my mac did what yours did the only fix for it was an erase and install. I tried all the other solutions but the only one that worked was an erase and install.
If you care to try some of the "fixes" then here are some.
Reset the pmu.
http://docs.info.apple.com/article.html?artnum=95037
• Trash all caches (system and user)
• Mac OS X power management is sensitive to malfunctions in USB devices.
Remove USB peripherals, one at a time
• Mac will not sleep if Applications/processes continuously writing to the Console logs.
Launch Console in Applications/Utilities and check both the console.log and system.log logs for blocks of recurring messages written therein that repeat at high frequency.
Note: the console.log file should open by default when you launch Console.
• Quit System Preferences.... Navigate to ....
/Library/Preferences and delete.....com.apple.AutoWake.plist
Enter your Admin password, when prompted.
•If this does not solve the problem, your Energy Saver preferences may be corrupt.
Navigate to /Library/Preferences/SystemConfiguration (folder) and delete.
com.apple.PowerManagement.plist
com.apple.AutoWake.plist
Enter your Admin password, when prompted.
• and finally....
Navigate to ~/Library/Preferences/ and delete......
com.apple.systemuiserver.plist

Mac won't sleep - Reason?

I am trying to figure out why my mac won't sleep.
I have run this command in the teminal (pmset -g assertions) and this is what I get back. If anyone can let me know what the problem is I would appreciate it. I have disconnected everything from the machine such as firewire, usb cables etc. But the computer will not sleep on its own. It does when I initiate it but not by the automatic function in energy saver pref pane.
Thx
Felix
mac-pro:~ felixbird$ pmset -g assertions
7/14/12 7:15:56 AM PDT
Assertion status system-wide:
   PreventUserIdleDisplaySleep             0
   CPUBoundAssertion                       0
   DisableInflow                           0
   ChargeInhibit                           0
   PreventSystemSleep                      0
   PreventUserIdleSystemSleep              0
   ExternalMedia                           0
   DisableLowPowerBatteryWarnings          0
   EnableIdleSleep                         1
   NoRealPowerSources_debug                0
   UserIsActive                            0
   ApplePushServiceTask                    0
Kernel Assertions: 0x0004
* Kernel Assertion ID = 500
   Created At = 12/31/69 4:03:23 PM PST
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff802079e000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 501
   Created At = 12/31/69 4:03:30 PM PST
   Modified At = 7/14/12 7:08:33 AM PDT
   Owner ID = 0xffffff80207c7000
   Level = 255
   Assertions Set = None (4)
* Kernel Assertion ID = 502
   Created At = 7/14/12 7:05:04 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a012c000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 503
   Created At = 7/14/12 7:05:04 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a012f000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 504
   Created At = 7/14/12 7:05:04 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a0129000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 505
   Created At = 7/14/12 7:05:16 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a0145000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 506
   Created At = 7/14/12 7:05:16 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a0148000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 507
   Created At = 7/14/12 7:05:16 AM PDT
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff81a0132000
   Level = 0
   Assertions Set = None (4)

If it is'nt the card, this may help;
If your Mac happily goes to sleep but won't wake up--Hold down the power switch to force-reboot your machine and get it running again.
Don't worry-your Mac isn't narcoleptic. Its Open Firmware system or NVRAM (nonvolatile RAM) is likely corrupt, and your Mac can't remember how to wake up.
Restart your Mac and immediately hold down the Command-Option-O-F key combo until you see a somewhat intimidating command-line display that ends with the Open Fimware prompt. Type the following lines:
reset-nvram
press Return on keyboard
set-defaults
press Return
reset-all
press Return
Your Mac will reboot. Once it's running, put it back to sleep to test. If the problem recurs your Energy Saver preferences may be the culprit. Delete the com.apple.PowerManagement.plist file (go to Finder/Hard drive/Library/Preferences/SystemConfiguration)--don't worry, your Mac will regenerate a new one--and then restart to see if that rights the wrong.
Still did'nt work? Might be time to call AppleCare or see an Apple Genius or a technician.
Cheers!
DALE

FW800 won't sleep -- shuts down instead...

So there are many here who are having sleep/power control related problems, however I'm having a slightly different problem. As the subject line states, my FW800 Dual G4 won't sleep. Rather, when I select sleep it simply shuts down.
I have replaced the battery, reset the PRAM, reset the PMU, and reset the NVRAM, without success.
I suspect, however, maybe it's related to software as I can load up new system software and everything works fine. By the time I update everything to the latest software, including iLife, it no longer sleeps.
Short of taking the machine in, does anyone have any further ideas?

I have this;
If your Mac happily goes to sleep but won't wake up--Hold down the power switch to force-reboot your machine and get it running again.
Don't worry-your Mac isn't narcoleptic. Its Open Firmware system or NVRAM (nonvolatile RAM) is likely corrupt, and your Mac can't remember how to wake up.
Restart your Mac and immediately hold down the Command-Option-O-F key combo until you see a somewhat intimidating command-line display that ends with the Open Fimware prompt. Type the following line:
reset-nvram
press the return key on your keyboard
set-defaults
press return
reset-all
press return
Your Mac will reboot. Once it's running, put it back to sleep to test. If the problem recurs your Energy Saver preferences may be the culprit. Delete the com.apple.PowerManagement.plist file (go to Finder/Hard drive/Library/Preferences/SystemConfiguration)--don't worry, your Mac will regenerate a new one--and then restart to see if that rights the wrong.
Still didn't work? Might be time to call AppleCare or see an Apple Genius or a technician
Cheers! DALE

Macbook Pro late 2008 17inch won't sleep or wake up

Recently I inset a SSD as a primary disk for the system and the original hard drive for storage. The system was upgraded to Marvericks 10.9.2. The computer is Macbook Pro 17 inches Late 2008 edition, A1229.
When I close the lid, the computer won't sleep. I tried to close lid under safe mode. It works fine. However, even if all the programs are closed, the computer won't sleep when the lid is closed. I tried to change the settings for power saver and bluetooth. It doesn't help.
There are so many people experiencing the same problem. I can't believe there is still no solution. PLEASE HELP.

I have tried to imput "pmset -g" in the terminal. The output was
sleep 10 (sleep prevented by UserEventAgent, mds, backupd, backupd)

Macbook fan keeps running, won't sleep or hibernate

So here's the deal, my macbook (late 2008 aluminum) fan is always running loudly, from 4500-6000 rpm, and the temperature stays around 80ºF even if the computer is idling. I have to shut it off for the fan to turn off. When I close the lid, the screen shuts off, but the computer won't sleep, even if I choose sleep from the apple menu. I tried unplugging the power and letting the screen turn off, thinking it would hibernate, but it will not hibernate either. I made sure there is no dust in vents or anything, tried SMC reset, installed latest software, am running SMC fan control, nothing seems to be working. I'm running Mountain Lion 10.8.3. and my activity monitor shows no unusual activity. It does feel hot, so I don't think the heat sensor is off, it is just heating up and won't cool down. Could the fan be running poorly and not cooling properly? Please help.

There's a log in Event Viewer. It might have the issue logged.
Does uninstalling the Power Management driver and reinstalling v1.62 help?
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Mac Mini won't sleep after upgrading to Mountain Lion

Upgraded to Mountain Lion (including the server upgrade) and now it won't sleep.
More info...
macmini:~ doug$ pmset -g
Active Profiles:
UPS Power                    -1
AC Power                    -1*
Currently in use:
hibernatemode        0
womp                 1
networkoversleep     0
sleep                30 (sleep prevented by 1488)
powerbutton          0
ttyskeepawake        1
hibernatefile        /var/vm/sleepimage
autorestart          0
disksleep            10
displaysleep         15
macmini:~ doug$ ps -ef |grep -e 1488
    0 1488     1   0 9:20AM ??         0:00.06 /Library/PrivilegedHelperTools/com.apple.serverd
What is PrivilegedHelperTools?
Also...
macmini:~ doug$ pmset -g assertions
11/14/12 9:35:32 AM PST
Assertion status system-wide:
   PreventUserIdleDisplaySleep    0
   PreventSystemSleep             1
   PreventUserIdleSystemSleep     1
   ExternalMedia                  1
   DisableLowPowerBatteryWarnings 0
   UserIsActive                   0
   ApplePushServiceTask           0
   BackgroundTask                 0
Listed by owning process:
pid 1488(com.apple.serve): [0x0000000100000334] 00:15:27 PreventUserIdleSystemSleep named: "com.apple.server.filesharing"
pid 345(httpd): [0x00000008000001a7] 01:15:14 DenySystemSleep named: "com.apple.apache.denysystemsleep"
pid 24(powerd): [0x000000090000012c] 01:15:35 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
Kernel Assertions: 0x0012
* Kernel Assertion ID = 500
   Created At = 12/31/69 4:03:47 PM PST
   Modified At = 11/14/12 8:30:22 AM PST
   Owner ID = 0xffffff801ec8b000
   Level = 255
   Assertions Set = None (4)
* Kernel Assertion ID = 501
   Created At = 12/31/69 4:03:48 PM PST
   Modified At = 11/14/12 8:29:48 AM PST
   Owner ID = 0xffffff801ec93000
   Level = 255
   Assertions Set = None (4)
* Kernel Assertion ID = 502
   Created At = 12/31/69 4:03:58 PM PST
   Modified At = 11/14/12 8:35:35 AM PST
   Owner ID = 0xffffff801ed05e00
   Level = 0
   Assertions Set = None (32)
* Kernel Assertion ID = 503
   Created At = 11/14/12 8:21:23 AM PST
   Modified At = 12/31/69 4:00:00 PM PST
   Owner ID = 0xffffff801f9a4800
   Level = 255
   Assertions Set = None (8)
Any ideas how to solve?

You can go into the OS X Server Forum and search for this issue. I think there are some discussiom threads that discuss it and you can read some of the solutions.
I'm also running Mountain Lion 10.8.2 and OS X Server on a Mac Mini and it won't sleep if I have the File Sharing, VPN and Printer Sharing services running. To me, this is a good thing as a server is usually available to client machines 24x7.
I did experiment and turned off each service one at a time to see which ones deny the sleep function and I found all 3 do.
Here's an example from my server. The bold entries are the culprits for my server.
server:~ server$ pmset -g assertions
11/14/12 10:58:07 AM MST
Assertion status system-wide:
   PreventUserIdleDisplaySleep    1
   CPUBoundAssertion              0
   PreventSystemSleep             1
   PreventUserIdleSystemSleep     1
   ExternalMedia                  1
   DisableLowPowerBatteryWarnings 0
   UserIsActive                   1
   ApplePushServiceTask           0
   BackgroundTask                 0
Listed by owning process:
pid 66(com.apple.serve): [0x000000010000012d] 02:24:31 PreventUserIdleSystemSleep named: "com.apple.server.filesharing"
pid 66(com.apple.serve): [0x000000010000012c] 02:24:31 PreventUserIdleSystemSleep named: "com.apple.ppp.l2tp"
pid 1683(ScreensharingAg): [0x0000000500000415] 00:00:23 NoDisplaySleepAssertion named: "screen sharing wake display"
pid 1683(ScreensharingAg): [0x0000000a00000414] 00:00:00 UserIsActive named: "screen sharing wake display"
          Timeout will fire in: 179.9 Action=TimeoutActionRelease
pid 220(AppleFileServer): [0x0000000800000416] 00:00:16 DenySystemSleep named: "com.apple.AppleFileServer"
pid 20(powerd): [0x000000090000012e] 02:24:30 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
pid 1681(screensharingd): [0x0000000500000413] 00:00:23 NoDisplaySleepAssertion named: "screen sharing wake display"
pid 1681(screensharingd): [0x000000050000040f] 00:00:23 NoDisplaySleepAssertion named: "Nameless (via IOPMAssertionCreate)"
pid 1681(screensharingd): [0x0000000a00000412] 00:00:23 UserIsActive named: "screen sharing wake display"
          Timeout will fire in: 156.8 Action=TimeoutActionRelease
pid 172(httpd): [0x0000000800000161] 02:24:32 DenySystemSleep named: "com.apple.apache.denysystemsleep"

T61 won't sleep on AC Power

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