Windows 10: Something prevents my monitors / windows from going to sleep. Can't find what it is.

As the title says, I can't find the source of interference with time based sleep settings.


When I lock the computer (nothing playing / no files available via network) screen should turn off after 5 minutes, with computer going to sleep 10 minutes later (after 15 minutes of inactivity). Instead I see that the monitor attempts to go to sleep (shuts down) for a second and than flickers back on. The cycle repeats without computer ever trying to sleep.


Setting the sleep settings to equal time, does not help, computer still fails to turn off displays and/or go to sleep.


While trying to troubleshoot, I've tried to run usb devices (mouse, keyboard, etc...) via a powered hub, which I tried turning off to make sure there is no erroneous inputs. No change, screen still blinks instead of going to sleep.


If I go to start > sleep, system goes to sleep as it should, but I prefer automated methods as sometimes I get sidetracked and do not return to the computer for several hours.


Some troubleshooting commands I saw online provide no hits, I've also went through numerous settings usually outlined in guides to no avail.


>powercfg lastwake

Wake History Count - 0


>powercfg -requests

DISPLAY:

None.


SYSTEM:

None.

AWAYMODE:

None.


EXECUTION:

None.


PERFBOOST:

None.


ACTIVELOCKSCREEN:

None.


Any help is appreciated, I would rather try and get to the bottom of this than have to reinstall everything from scratch.


Thank you

:)

 

Preventing sleep on laptop/monitor

Hi Tricia,

In order to help you with your concern about preventing your Windows 10 not to go to sleep mode, may we request you to answer the following questions first:

• Have you made any recent changes to your computer system prior to getting this issue?
  
• What is the current Build and Version of your Windows 10 PC? To know these information follow these steps:
  

• Press the Windows key + R.
• Type Winver.
• Press Enter.
• A small box will appear showing the current Build and
  Version of your PC.

(Should you need to update your PC, you may click on this
link. This will also show you the update history for Windows 10.)

• Are you getting any error messages? If yes, kindly post it here.
• What troubleshooting steps have you taken so far?

You may utilize the troubleshooting suggestions from the post of
Aleksandr 10 in this thread, to remedy the
automatic sleep that your device is displaying. This link has been helpful to a lot of Community members who had the same concern and may also be helpful in the issue at hand.

We look forward to your response.

Regards.

 

Monitors won't go to sleep... Why?

Set a screen saver to start after a minute for testing, then set your monitors to turn off after 3 minutes, don't let a mouse cord be moving. Another thing could be that a program is set to prevent windows from sleeping even.

Change Power Plan Settings in Windows 10

 

Monitors won't go to sleep... Why?

Is your computer still awake?
Also, if you go through the Windows power button and select Sleep (instead of just walking away) do the computer and monitors go to sleep then?