Windows 8 and 8.1 Forums

Computer keeps waking up from sleep after around 30 mins

  1. #21

    I have had success in the past 24 hours of the Computer waking its self up, I regret the tests have only been for around one hour before I had to wake it up myself.

    I have done all the checks you recommended and even changed my Keyboard, but still it kept on waking up.

    This time I have tried plugging the keyboard into a new USB connection (still a USB2) and so far its behaving itself.

    If over the next 1-2 days I can extend the sleep time, and if it remains asleep, then the problem is sorted.

    But if that was the solution, then why should one USB2 port to different to another !

      My System SpecsSystem Spec

  2. #22

    Posts : 1,121
    Windows 8.1 x64

    Hopefully it will continue to function correctly.

    When you plug a device into a USB port, that specific port loads the drivers for that device. When you change ports, that port has to do the same thing, so if the drivers were the problem on the original port, they may have been installed better on the new port, or at least that is the way I understand it works.

    Also, different ports are controlled by different controllers. We know the original problem was referring to the USB 3.0 controller, so maybe the new port does not use that one.
      My System SpecsSystem Spec

  3. #23

    It slept for a good 3 hours before I woke it up this afternoon. Still cannot explain fully why its working now only that I connected my Keyboard to a new USB.

    Just for information - the Dell manual describes this set of 4 USB as USB2 - whilst when I do a powercfg - lastwake it reports it as a USB3. Very Odd - something else I cannot explain.

    Thanks to everyone - Iam now closing this thread.
      My System SpecsSystem Spec

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Computer keeps waking up from sleep after around 30 mins
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