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    Random wake from sleep

    Discussion in 'Lenovo' started by keltix, Mar 23, 2012.

  1. keltix

    keltix Notebook Deity

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    Does anyone else computer just randomly wake up from sleep?
    I go to bed after putting the computer on stand-by and the next working it's awake. This happened sometimes on my T400 too, but now on my T520?

    Note: I do have a USB wireless mouse/keyboard hooked in as well as a VGA monitor plugged in. But it sometimes wakes up without these anyways.
     
    keltix, Mar 23, 2012
    #1
  2. Kaso

    Kaso Notebook Virtuoso

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    Is your Gigabit Ethernet interface active?
     
    Kaso, Mar 23, 2012
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  3. keltix

    keltix Notebook Deity

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    i use wifi, but I haven't disabled the NIC.
     
    keltix, Mar 23, 2012
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  4. Kaso

    Kaso Notebook Virtuoso

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    Disable this:

    [​IMG]


    Disable this:

    [​IMG]


    Disable these:

    [​IMG]
     
    Kaso, Mar 23, 2012
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  5. keltix

    keltix Notebook Deity

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    Thanks. I will test this out.
     
    keltix, Mar 24, 2012
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  6. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Alternatively, in Device Manager, go through the various devices that have Power Management properties and make sure "Allow this device to wake the computer" is deselected. These are mainly the network adaptors but can be others.

    John
     
    John Ratsey, Mar 25, 2012
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  7. ivantheturrible

    ivantheturrible Notebook Enthusiast

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    I had the same problem a while ago, fixed it by making sure my hibernation times is deactivated. What was happening was my laptop would wake up from sleep and then to enter hibernation, however it was failing, then going back to sleep.. Drained the battery..
     
    ivantheturrible, Mar 30, 2012
    #7