Window keeps waking up laptop from Modern Standby

  1. hdmi's Avatar
    Posts : 433
    10 Home (20H2)
       #1

    Windows keeps waking up laptop from Modern Standby


    Hi,
    On my new laptop (it's in my specs) that came with 2004 preinstalled so far I have figured out that updating it to 20H2 has brought back the option to enter
    Code:
    reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0
    (in an elevated command window, and reboot after that) to revert from Modern Standby, or S0 Low Power Idle compatibility back to traditional-old S3 so I am using that for my temporary working solution.
    There's no option to disable Modern Standby in BIOS, and disabling Wake Timers also didn't help. And there wasn't even a Power Management tab to be found in the Intel WiFi 6 adapter's hardware properties panel until finally I got tired of getting frequent wakeups and decided to use the above registry hack.
    Running on 20H2, before the registry hack here's what it gave me:
    Code:
    C:\Windows\system32>powercfg waketimers
    Timer set by [PROCESS]  \Device\HarddiskVolume3\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe  expires at 4:00:00 on .
    C:\Windows\system32>powercfg devicequery wake_armed
    NONE
    C:\Windows\system32>powercfg lastwake
    Wake History Count - 0
    C:\Windows\system32>powercfg requests
    DISPLAY:
    None.
    SYSTEM:
    None.
    AWAYMODE:
    None.
    EXECUTION:
    None.
    PERFBOOST:
    None.
    ACTIVELOCKSCREEN:
    None.
    C:\Windows\system32>powercfg a
    The following sleep states are available on this system:
        Standby (S0 Low Power Idle) Network Connected
        Hibernate
        Fast Startup
    The following sleep states are not available on this system:
        Standby (S1)
            The system firmware does not support this standby state.
            This standby state is disabled when S0 low power idle is supported.
        Standby (S2)
            The system firmware does not support this standby state.
            This standby state is disabled when S0 low power idle is supported.
        Standby (S3)
            This standby state is disabled when S0 low power idle is supported.
        Hybrid Sleep
            Standby (S3) is not available.
    After the registry hack with reboot, here's what I got instead:
    Code:
    C:\Windows\system32>powercfg a
    The following sleep states are available on this system:
        Standby (S3)
        Hibernate
        Hybrid Sleep
        Fast Startup
    The following sleep states are not available on this system:
        Standby (S1)
            The system firmware does not support this standby state.
        Standby (S2)
            The system firmware does not support this standby state.
        Standby (S0 Low Power Idle)
            The system firmware does not support this standby state.
    C:\Windows\system32>powercfg waketimers
    Timer set by [PROCESS]  \Device\HarddiskVolume3\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe  expires at 4:00:00 on .
    C:\Windows\system32>powercfg devicequery wake_armed
    Intel(R) Wi-Fi 6 AX201 160MHz
    C:\Windows\system32>powercfg lastwake
    Wake History Count - 1
    Wake History [0]
      Wake Source Count - 1
      Wake Source [0]
        Type: Device
        Instance Path: PCI\VEN_8086&DEV_A0F0&SUBSYS_00748086&REV_20\3&11583659&5&A3
        Friendly Name: Intel(R) Wi-Fi 6 AX201 160MHz
        Description: Intel(R) Wi-Fi 6 AX201 160MHz
        Manufacturer: Intel Corporation
    C:\Windows\system32>powercfg requests
    DISPLAY:
    None.
    SYSTEM:
    None.
    AWAYMODE:
    None.
    EXECUTION:
    None.
    PERFBOOST:
    None.
    ACTIVELOCKSCREEN:
    None.
    Next, I unchecked the "allow this device to wake the computer" for the WiFi adapter, and I also turned the Wake Timers back on, just to see how stuff will behave. So far it hasn't woken up in a while.
    Is there anything I could try to get Modern Standby to work properly without it waking itself back up for no good reason, usually within the next hour?
    Last edited by hdmi; 07 Jan 2021 at 04:38.
      My Computers


  2. Posts : 253
    Windows 10 Home
       #2

    Hi. I recently noticed a similar problem with my desktop pc waking from sleep randomly. If I put it to sleep manually it would wake up within a minute or so. Only seemed to happen after using pc for long periods. I use an ethernet connection and in the Device Manager under Network Adapters in Realtek Gaming GbE Family Controller Power Management I unchecked Allow this device to wake the computer. The problem never happened again after that.
      My Computer

  3. hdmi's Avatar
    Posts : 433
    10 Home (20H2)
    Thread Starter
       #3

    Mcd73165 said:
    Hi. I recently noticed a similar problem with my desktop pc waking from sleep randomly. If I put it to sleep manually it would wake up within a minute or so. Only seemed to happen after using pc for long periods. I use an ethernet connection and in the Device Manager under Network Adapters in Realtek Gaming GbE Family Controller Power Management I unchecked Allow this device to wake the computer. The problem never happened again after that.
    Yeah, unchecking "Allow this device to wake the computer" is probably the most common solution, and that has worked for me on several computers over the years. But in this case the WiFi controller didn't actually have a Power Management tab because, as it turned out, this new laptop supports a form of sleep known as Modern Standby, or Low Power Idle (S0). In a nutshell, it basically means that Windows can keep running the system with only limited functionality, kind of like how an Android smartphone also does it when you put it in ultra power saving mode. BUT... it also means that any system that supports Modern Standby can not support Standby (S3). I suppose that explains why the WiFi had no Power Management tab. I was lucky enough that the registry hack worked for me, as that's what effectively removed support for Modern Standby, thereby bringing back support for Standby (S3). The powercfg a command output confirms this.

    My only question I have now is, how do I keep my laptop from waking itself up after I undo the registry hack. Does anyone know?
      My Computers


 

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