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Thread: Vista Wakes Up from Hibernate in Middle of the Night

  1. #1
    DRT Guest

    Vista Wakes Up from Hibernate in Middle of the Night

    I have Vista Ultimate running on my new Toshiba S-5034 notebook. In
    the middle of the night, I don't know exactly when, the thing wakes
    up for some reason and sucks up juice! Aaargh!

    The notebook gets awfully hot in the bag as the fan struggles to
    keep it cool in the confined space. I am left with a weak battery
    for my commute too :-(

    I thought that hibernate was the deepest power saving mode? The
    hardware is completely powered off. It is only that the O/S saves
    the CPU and memory state to HDD right and makes a boot-up "note" to
    itself to restore the image? Therefore, can any task that was
    running in Windows possibly wake up a system in hibernate state? I
    don't think so because they aren't running.

    Since the notebook is in my bag with no Ethernet or wireless on, I
    am sure that Wake-on-LAN (WoL) couldn't possibly be the culprit for
    problem or could it?

    Yes, I am sure my notebook is in hibernate mode and *not* in sleep
    mode. All lights go off on this Toshiba (there is a standby light)
    and I have unplugged the notebook's battery and power adapter. I
    can successfully resume where I left off after reattaching
    everything and powering back on.

    Can anyone offer any advice on this problem? TIA!

    --



  2. #2
    Richard G. Harper Guest
    Oh yes, Vista will awaken from a hibernate state. My wife's wireless mouse
    adapter will wake her computer if left plugged in overnight. If I remove
    the wireless receiver from the USB port it sleeps until dawn. Check
    hardware devices (disconnect all), make sure no scheduled tasks are running
    and awakening the unit.

    check the scheduled task log to see what is waking the computer up and maybe change its schedule to a different time.

  3. #3
    DRT Guest
    Yeah, I have mine set to "Automatically download updates but let me
    choose whether to install them". Does it do it at 3AM? There seems
    to be nothing in the dialog to indicate that but I guess it could be
    hard coded into Vista's auto-update system. I wish Vista would let
    me change that. I'd probably change it to run on a weekday
    afternoon like at lunchtime when I won't be on the notebook and I
    know the notebook will be powered on to do the update.

    I still think that *nothing* should be able to run in hibernate
    mode. It means the CPU and memory are active which defeats
    the purpose of hibernation.

    For the rest of the week, I'm going to hibernate my notebook as
    usual at night but unplug the notebook's battery! That way, it
    couldn't possibly power on! Its a shame this poor hibernation
    implementation forces me to do this though!

    Great suggestion. There is an entry started on 7:14:46 AM on the
    morning I found my notebook had powered itself on. I was sound
    asleep at that time.

    Information
    5/24/2007 7:14:46 AM
    Tcpip
    4201
    None
    The system detected that network adapter Local Area Connection 2 was
    connected to the network, and has initiated normal operation.

    In addition, there are about a dozen of these duplicated at 7:14:46
    AM and 7:14:47 AM. I think this might be the cause of the
    unexpected wakeups. The notebook's Ethernet hardware is somehow
    "glitching" and waking up the computer eventhough nothing is
    connected to the notebook's Ethernet port.

    I am pretty sure I wasn't sleep-walking because there was no
    Ethernet cable or jack around to plug the notebook into!

  4. #4
    Paul Smith Guest

    Re: Vista Wakes Up from Hibernate in Middle of the Night

    Check in Device Manager and make sure under the network adapter under power
    management it isn't allowed to wake the machine up

  5. #5
    DRT Guest

    Re: Vista Wakes Up from Hibernate in Middle of the Night

    Interesting, I just checked in my Device Manager and my "Intel(R)
    PRO/100 VE Network Connection" adapter has the check box "Allow this
    device to wake the computer" *unchecked*.

    Maybe there is some low level BIOS setting I should check the next
    time I reboot this machine(?). At least I know where to focus my
    investigation on now.

  6. #6
    ...winston Guest
    Look in the bios for a Wake on Lan option or power on pci(if your adapter is installed in a pci port). The latter is usually for modems.

    how bout a wireless connection that is waking the laptop up? lol

    see if the wireless network adaptor has the setting you checked for before

  7. #7
    Join Date
    Dec 2009
    Posts
    1

    Re: Vista Wakes Up from Hibernate in Middle of the Night

    I had this same problem and checked the event logs/system and found entries for power-troubleshooter, which told me that it was Windows Media Centre updater that was running in the night and waking up the machine. Sure enough when I checked through the scheduled tasks under Microsoft/windows/medi player I found two entries for mcupdate, one of which was set to wake the computer to run. I unchecked this option from the conditions tab. I hope this helps someone.

  8. #8
    Owkmann Guest

    Re: Vista Wakes Up from Hibernate in Middle of the Night

    We are seeing the same issue. Our laptop suddenly wakes up, always in
    the middle of the night. Thank you for figuring this out.

  9. #9
    Join Date
    Feb 2010
    Posts
    1

    Re: Vista Wakes Up from Hibernate in Middle of the Night

    <quote>I had this same problem and checked the event logs/system and found entries for power-troubleshooter, which told me that it was Windows Media Centre updater that was running in the night and waking up the machine. Sure enough when I checked through the scheduled tasks under Microsoft/windows/medi player I found two entries for mcupdate, one of which was set to wake the computer to run. I unchecked this option from the conditions tab. I hope this helps someone. <end quote>

    Thank you sooooo much for this solution! It works! I had been breaking my brains over this one!

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