MBP display won't stay off, wakes from sleep

I have a newish 15" MBP, 1680 display, hooked up to a Dell external monitor when it's at home. When I go to bed I cut power to the display via control-shift-eject, but generally don't put the computer to sleep overnight.
With this new machine, after it's been running for a while (as little as a day, or as long as a couple weeks), the displays will come on again in the night. Once this happens, the displays won't stay off for longer than about five seconds. If I then put the machine to sleep, it'll wake itself up minutes or hours later (generally not long enough to miss a Time Machine interval). The only cure is rebooting.
I tried an SMC reset, but that fix only lasted about as long as any other reboot.
I've since tried systematically removing every peripheral (a USB hub, the external display, any directly-connected iOS devices) and testing display-off after each; no change. I've turned off my Bluetooth keyboard and mouse, then disabled Bluetooth on the computer, turned off wifi, quit every menu extra (jitouch, Viscosity, Dropbox, Pastebot, Fastscripts, Transmit, Teleport), and quit every running application. The problem remains repeatable after every step.
It's repeatable at the moment — any suggestions for other things to try, preferably short of the reboot which temporarily masks the problem? I'm a little concerned that it's going to manifest at some point while I have the laptop sitting in a bag, which will then cook itself.
I'm on 10.6.4 now, the problem started on 10.6.3.
Thanks.

Try checking the system logs in Applications/Utilities/Console.app for clues. The entries carry time stamps. Usually a wake event will leave some trace. By matching time stamps to the time of occurrence you may find the culprit.

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    com.apple.driver.SMCMotionSensor          3.0.3d1
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    com.apple.iokit.SCSITaskUserClient          3.5.5
    com.apple.driver.AppleUSBCardReader          3.1.7
    com.apple.driver.AppleUSBTCKeyEventDriver          237.1
    com.apple.driver.AppleUSBTCKeyboard          237.1
    com.apple.driver.AppleIRController          320.15
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
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    com.apple.BootCache          34
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.3.1
    com.apple.driver.AirPort.Brcm4331          614.20.16
    com.apple.driver.AppleAHCIPort          2.5.1
    com.apple.driver.AppleUSBHub          5.5.5
    com.apple.driver.AppleFWOHCI          4.9.6
    com.apple.iokit.AppleBCM5701Ethernet          3.6.0b1
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    com.apple.driver.AppleUSBUHCI          5.2.5
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    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleACPIButtons          1.7
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.7
    com.apple.driver.AppleAPIC          1.6
    com.apple.nke.applicationfirewall          4.0.39
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    com.apple.kext.OSvKernDSPLib          1.6
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    com.apple.driver.AppleHIDKeyboard          170.2
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.5
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    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5
    com.apple.driver.AppleUSBMultitouch          237.3
    com.apple.iokit.IOUSBHIDDriver          5.2.5
    com.apple.driver.AppleUSBMergeNub          5.5.5
    com.apple.driver.AppleUSBComposite          5.2.5
    com.apple.iokit.IO80211Family          522.4
    com.apple.iokit.IOAHCIFamily          2.3.1
    com.apple.iokit.IOUSBUserClient          5.5.5
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOEthernetAVBController          1.0.2b1
    com.apple.iokit.IONetworkingFamily          3.0
    com.apple.iokit.IOUSBFamily          5.5.5
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    com.apple.iokit.IOHIDFamily          1.8.1
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          220.2
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.DiskImages          345
    com.apple.iokit.IOStorageFamily          1.8
    com.apple.driver.AppleKeyStore          28.21
    com.apple.driver.AppleACPIPlatform          1.7
    com.apple.iokit.IOPCIFamily          2.7.3
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    Press the power on button
    Immediately after you press the power on button: hold down the following 4 keys:
    Command + Option + P + R. Continue to hold them down until you hear your mac make the power on sound twice. Once you hear it twice, let go of all keys.
    This should re-set the sleep settings. Worked for my computer, I hope it works for you if you haven't already tried it.

  • Mbp randomly wakes from sleep

    For some reason, my mbp SR 2.2ghz stock model randomly wakes from sleep for no reason roughly 20 minutes after I put it to sleep. I am about 10 feet from the computer and do not touch it. Auto wake from bluetooth is off. I reset the video ram, ran onyx, and tried everything i could think of. Nothing is plugged in. No programs are running. How do I fix this?

    Follow the instruction listed in this thread…
    http://discussions.apple.com/thread.jspa?threadID=1077308
    … and return the results. There might well be an issue within Mac OS X and or the hardware which needs identifying and this will help Apple identify/comfirm their suspicions.
    By the way, if you use a password to wake your MBP from sleep you will need to disable it so your MBP won't go back to sleep.

  • MBP Wakes From Sleep With Lid Shut

    My MacBook Pro (only about 1 1/2 months old) wakes from sleep while the lid is shut. I close the lid to put the computer in sleep mode and wait until it has fully entered sleep mode (the white light pulsates). If I then pick the computer up and rotate it some, more often than not it sounds as if the hard drive kicks back on and the apple logo on the top of the screen briefly illuminates. Sometimes I have even noticed that the screen will illuminate; however, the most consistent things I've noticed are the hard drive and logo. This is all while the lid is still closed.
    I spent around 1 1/2 hours on the phone with Apple support yesterday with no result. I thought I would see if anyone has an explanation or idea here before I send the computer off to Apple.

    Hi again,
    your statements that the workaround does not "work around"
    on your machines confuses me a bit. It looks like the changes
    in the com.apple.PowerManagement file don't produce the desired
    effect.
    First question: Did you restart your computers after having
    applied the changes ? If not, try this first.
    Can it depend on the model of MBP (I have the new Santa Rosa) ?
    If I save the file as an ASCII file it looks like this:
    ActivePowerProfiles = {"AC Power" = -1; "Battery Power" = -1; };
    "Custom Profile" = {
    "AC Power" = {
    "Automatic Restart On Power Loss" = 0;
    "Disk Sleep Timer" = 0;
    "Display Sleep Timer" = 0;
    "Display Sleep Uses Dim" = 0;
    "Hibernate File" = "/var/vm/sleepimage";
    "Hibernate Mode" = 3;
    "Mobile Motion Module" = 1;
    "System Sleep Timer" = 0;
    "Wake On AC Change" = 0;
    "Wake On Clamshell Open" = 0;
    "Wake On LAN" = 0;
    "Battery Power" = {
    "Disk Sleep Timer" = 10;
    "Display Sleep Timer" = 5;
    "Display Sleep Uses Dim" = 1;
    "Hibernate File" = "/var/vm/sleepimage";
    "Hibernate Mode" = 3;
    "Mobile Motion Module" = 1;
    ReduceBrightness = 0;
    "System Sleep Timer" = 15;
    "Wake On AC Change" = 0;
    "Wake On Clamshell Open" = 0;
    System Profiler says:
    Einstellungen für Stromversorgung des Systems:
    Netzbetrieb:
    Ruhezustand des Systems (nach Anzahl von Minuten): 0
    Ruhezustand der Festplatte (nach Anzahl von Minuten): 0
    Ruhezustand des Monitors (nach Anzahl von Minuten): 0
    Bei Stromverlust automatisch neu starten: Nein
    Ruhezustand bei Änderung der Stromversorgung beenden: Nein
    Ruhezustand beim Öffnen des Computers beenden: Nein
    Ruhezustand bei administrativen Netzwerk-Zugriffen beenden: Nein
    Zum Ruhezustand des Monitors den Monitor abdunkeln: Nein
    Batteriebetrieb:
    Ruhezustand des Systems (nach Anzahl von Minuten): 15
    Ruhezustand der Festplatte (nach Anzahl von Minuten): 10
    Ruhezustand des Monitors (nach Anzahl von Minuten): 5
    Ruhezustand bei Änderung der Stromversorgung beenden: Nein
    Ruhezustand beim Öffnen des Computers beenden: Nein
    Zum Ruhezustand des Monitors den Monitor abdunkeln: Ja
    Helligkeit verringern: Nein
    (German only, sorry)
    And - I checked it just a minute ago - i works ! My MBP
    goes to sleep when lid is shut and does NOT wake, when I
    open the lid. After pressing a key, it comes to life again.
    Regards,
    Robert
    P.S. Please have a look at the files in the
    Library/Preferences/System Configuration Folder.
    Is there only one file for Energy preferences or
    did your system create another one, when you tried
    to change settings via System Preferences ? I saw
    this one time a few weeks ago, but I don't know
    the exact conditions under which that happened.
    Message was edited by: gandalf22

  • MBP wakes from sleep as soon as ac adapter is plugged in

    My MBP recently wakes from sleep after this series of events:
    1. Use MBP on battery power
    2. Close lid
    3. Sleeps (light pulses so apparently sleeping)
    4. Plug in AC adapter (while the lid is still closed)
    5. Wakes at that moment the adapter is plugged in (while the lid is still closed)
    6. Sometimes the MBP recognizes the lid is indeed closed and then goes to sleep itself; other times, the MBP goes to sleep, then immediately wakes, then goes to sleep, then wakes, etc., repeatedly (this happens all while the lid is closed as if it's demented), until I open the lid, wake the system and then close the lid again. Then it will finally sleep.
    "Wake on AC change" is set to No (see below). I was wondering if anyone knew how to set it to Yes. Maybe I just need to switch the setting back and forth once.
    I can recreate the problem, so I can just take it to the Apple Store and let them figure it out (Applecare is still in effect), but I was just wanted to give it a shot here first.
    Battery Information:
    Model Information:
    Serial Number: Sony-ASMB012-3926-1554
    Manufacturer: Sony
    Device name: ASMB012
    Pack Lot Code: 0001
    PCB Lot Code: 0000
    Firmware Version: 0110
    Hardware Revision: 0500
    Cell Revision: 0303
    Charge Information:
    Charge remaining (mAh): 4811
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 5202
    Health Information:
    Cycle count: 91
    Condition: Good
    Battery Installed: Yes
    Amperage (mA): 1342
    Voltage (mV): 12530
    System Power Settings:
    AC Power:
    System Sleep Timer (Minutes): 20
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 20
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On LAN: No
    Display Sleep Uses Dim: Yes
    Battery Power:
    System Sleep Timer (Minutes): 5
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 3
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Display Sleep Uses Dim: Yes
    Reduce Brightness: Yes
    Hardware Configuration:
    UPS Installed: No
    AC Charger Information:
    Connected: Yes
    Charging: Yes

    tsenga88 wrote:
    i have the same problem as well...but in my case water spilled on my macbook i let dry it for a day and when i switched it on it went on  butwent off after about an hour..and ever since then every time i connect the charger it turnsoff and some times it just doesnt charge at all...please help
    You don't have the same problem, you have the 'I damaged my Mac by spilling water on it' problem.
    it will probably fail.
    Take it to an Apple Store.

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