Lenovo Legion 5 wakes from Sleep even after disabling waking


  1. Posts : 2
    Windows 10
       #1

    Lenovo Legion 5 wakes from Sleep even after disabling waking


    My Lenovo Legion 5 (82AU00BVUS) keeps waking from sleep, even though I've taken all sorts of steps to prevent it. WinVer: 20H2 (19042.867)

    System bios info:
    SMBIOSBIOSVersion
    EFCN38WW

    Here's what I've done so far:

    1. Disable wake timers

    I completely disabled wake timers in Power Options:

    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-1.jpg

    2. Checked wake_armed devices

    I checked which devices are "wake_armed" in powercfg. Armed devices include the keyboard, and the ethernet port of an external dock, which is strange because when I look in device manager at that ethernet port, the enable wake is disabled, so something isn't adding up right.

    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-2.jpg

    3. Check Device Manager

    In Device Manager, I checked on the eXtensible Host Controller that you see mentioned above as the cause of the last wake event. There's only one such controller:

    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-3.jpg

    And the device properties:

    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-4.jpg

    As you can see, according to device manager properties, the device isn't allowed to wake up the computer - and yet it did.

    And remember how it said that the Plugable ethernet was wake_armed? Well check this out:

    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-5.jpg

    4. Check Event Viewer

    Event viewer confirms the eXtensible host controller as the cause of the wake event:

    The system has returned from a low power state.

    Sleep Time: ‎2021‎-‎03‎-‎25T21:37:43.268198000Z
    Wake Time: ‎2021‎-‎03‎-‎25T22:46:01.919720100Z

    Wake Source: Device -Intel(R) USB 3.1 eXtensible Host Controller - 1.10 (Microsoft)

    Summary

    1. In power settings, wake from sleep is disabled entirely.
    2. The system is being woke by a device that, in device manager, shows isn't even allowed to wake up the computer.
    3. Another device (plugable ethernet) shows in powercfg that it is wake_armed, even though its power configuration in device manager says the opposite.

    Something crazy is going on here. How do I stop this computer from waking up?
      My Computer

  2. Technewbie's Avatar
    Posts : 36
    Windows 10 Pro, 20H2, 19042.867
       #2

    technonaut said:
    Lenovo Legion 5 wakes from Sleep even after disabling waking-lenovo-legion-5-power-5.jpg
    Did you try checking the "Allow the computer to turn off this device..." & unchecking "Allow this device to wake computer", maybe that is the reason it was listed as wake_armed?

    Run the power troubleshooter to see if that fixes the problem, you can access the troubleshooter from settings app or via control panel>search troubleshoot>click on troubleshooting> (under) system and security> Improve power usage.

    Also, check this->
    https://answers.microsoft.com/en-us/...6-48fb7f6bfd7b

    Miguel Ángel Córdoba said:
    Of course! Intel USB 3.0 is the general driver for USB devices.

    You will need to find the specific driver for the device that is waking your computer up! If it's a mouse, just go to 'Mouse' tab.
    John David Haack said:
    He's right! I had the same problem and apparently it was (in my case) my USB keyboard which repeatedly turned my PC on. Maybe just check all your USB devices in the menu.
    Reading the above post from Microsoft made me wonder if u have a wireless mouse or keyboard :o?
      My Computer


  3. Posts : 2
    Windows 10
    Thread Starter
       #3

    Solved


    This problem appears solved, though I took multiple steps all at once trying to fix it. As a result, I'm not sure which was the cure:

    1. Updated BIOS (unlikely);

    2. Disabled UpdateOrchestrator from being able to wake the computer (possible - has been documented many times elsewhere);

    3. Disabled the keyboard from being able to wake the computer. Since it's connected to a KVM, it's possible that the KVM was sending some kind of signal that was waking the computer (likely).
      My Computer


 

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