Computer left on "sleep" state, but came back by its own

Alphonse777 · Mar 5, 2023

Hello,
Again, something wierd, may be my house hosts a ghost that pressed a button...
I left my computer on sleep (22H2) and the next day the computer was alive an running.
When I enter this command ->

C:\Users\....>powercfg -devicequery wake_armed
NONE

NONE is none; so why it went back alive without my consent ?

Thanks

TVeblen · Mar 5, 2023

Motherboard Brand and Model please. Is it ASUS AORUS Master?

Check this first: Go to Control Panel > Device Manager > Network Adapters > right click on your LAN/Ethernet adapter > Properties > Power Management Tab > and check to see if "Allow this device to wake the computer" is checked.
If yes, uncheck it.

Alphonse777 · Mar 5, 2023

Thanks, but I do not think this is the culprit.. Here is how is it set. I have another 2.5 GB network card, and is the same.

Is not the "powercfg -devicequery wake_armed" command list ALL device that are allowed to wake the computer up ?
Or it misses some devices ?

abactuon · Mar 5, 2023

Transitioning between idle and active states

During modern standby, Windows periodically transitions the SoC platform from idle mode to active mode to perform value-adding tasks.

learn.microsoft.com

TVeblen · Mar 5, 2023

You are correct, but that applies to the Windows OS. It does not address the UEFI/BIOS settings.
There is the S5 power state, sometimes called "soft-off". This state turns everything off but maintains a low power state to allow for wake up from OFF, not just from SLEEP. You might check your UEFI/BIOS settings to see if you can disable the behavior from there.

Modern Standby seems to be a thing on laptops today. I do not have Modern Standby available on my desktops. But, grain of salt, that doesn't mean it can't be a feature on any given system.

abactuon · Mar 5, 2023

TVeblen said:
Motherboard Brand and Model please. Is it ASUS AORUS Master?

Check this first: Go to Control Panel > Device Manager > Network Adapters > right click on your LAN/Ethernet adapter > Properties > Power Management Tab > and check to see if "Allow this device to wake the computer" is checked.
If yes, uncheck it.

But then

"It's not supported from fast startup or S5 soft off shutdown states."

System power states - Win32 apps

Learn about the multiple system power states that correspond to the Advanced Configuration and Power Interface (ACPI) specification.

learn.microsoft.com

Alphonse777 · Mar 5, 2023

I think I found why. This is related to the task scheduler. There's a way to enable a task to wake up the computer and run.
I have backup tasks that did that by default. Let's see how it goes when disabled.
"wake the computer to run this task"
I would have liked to have a command that list all of them.

Brink · Mar 5, 2023

Hello,

In addition, you could use this below when it happens to find wake sources to help ID the culprit.

Find Wake Source for Windows 11 Computer Tutorial

This tutorial will help show you how to find the wake source for what woke up your Windows 11 computer from a sleep or hibernate state. When you put your computer to sleep or hibernate, many sources (ex: device or wake timers) can wake the computer. References...

www.elevenforum.com

You can also get a list of wake timers for tasks below:

Find Wake Timers in Windows 11 Tutorial

A wake timer is a timed event that wakes the computer from a sleep or hibernate state at a specific time to perform scheduled tasks. Important wake timers includes things like a required reboot after a Windows update. They supersede all other settings. This tutorial will show you how to get a...

www.elevenforum.com

abactuon · Mar 5, 2023

Alphonse777 said:
I think I found why. This is related to the task scheduler. There's a way to enable a task to wake up the computer and run.
I have backup tasks that did that by default. Let's see how it goes when disabled.
"wake the computer to run this task"
I would have liked to have a command that list all of them.

View attachment 54332

In this case, your computer could not be in s5 state. Or maybe I misunderstood.
You can look at the log, for example

Alphonse777 · Mar 5, 2023

Here is what I have

using powercfg -a

The following sleep states are available on this system:
Standby (S3)
Hibernate

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.

Hybrid Sleep
The hypervisor does not support this standby state.

Fast Startup
This action is disabled in the current system policy.

======

Try3 · Mar 6, 2023

And have you checked the tasks that have run between leaving your computer in S3 Sleep and finding it awake?
They are all listed in the opening screen of Task scheduler in the middle section called Task status.
And I also suggest you look in the right-hand side of TS and click on Enable all tasks history. Your a very likely yo need it when tracking down the culprit.

Denis