Windows 10: Dual monitors won't enter sleep mode after timeout - Windows 11 23H2

System Specs:Windows 11 23H2 Build 22631.5335Intel Core i9-12900KNVIDIA GeForce RTX 3080 TiDual monitor setup both connected via DisplayPortIssue: My monitors refuse to enter sleep mode after the configured timeout period. This problem started suddenly after a reboot, even though the sleep functionality was working properly before.Troubleshooting Steps Already Attempted:System Updates: Confirmed Windows is fully updated with the latest drivers installedPower Settings: Configured sleep timeout through both Windows Settings UI and command linePower Requests Check: Ran&nbs

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monitor and PC are not entering sleep/standby

I am using Windows 11 Pro and I set my monitor to go off after 5 minutes and the computer after 15 minutes.

The problem is that after 5 minutes the monitor tries to enters briefly in standby but immediately turn on again.

Something is keeping my monitor or PC to enter sleep mode. I suspect some device connected to my PC.

The question is how to determine what is keeping my PC from entering sleep mode?

Please don't suggest me to reinstall Windows, this is a fresh installation. I would like to know how to use the many Windows diagnostic tools to determine what is keep my PC from entering sleep.

 

Dual monitors not waking from sleep

Hi all,

I'm having issues where my monitors won't wake from sleep in a dual monitor setup. This only occurs after waking them from a sleep state, and they work fine when booting up my PC from scratch.

I have tested both monitors in a single monitor setup and the issue goes away completely as they wake from sleep just fine when only using a single monitor. This issue only seems to occur when using both monitors simultaneously.

I have tried the below steps to no avail to remedy the issue:

• Changed the DisplayPort cable
  
• Uninstalled graphics drivers with DDU and reinstalled them again
  
• Made sure Windows update was completely up-to-date, including any optional drivers
  
• Made sure there were no unknown devices in Device Manager
  
• Turned Link State Power Management under PCI Express in Power Plan settings to off
  
• Completely formatted my PC and reinstalled Windows 11
  

None of these steps have resolved the issue.

Any assistance provided will be much appreciated!

 

Windows 11 Desktop Won't Enter Sleep Mode

I upgraded to Windows 11 last fall (November) and for the most part everything has been working ok. Within the last month, I've had an issue where my desktop will not enter sleep mode. If I select sleep, my keyboard and mouse will shut off but my desktop will idle with the fan periodically cycling for about ten minutes before the desktop shuts off altogether. The only way I can turn my PC back on is by using the power button, which reboots the device.

There are two other issues that have started around the same time, which may or may not be related to the above:

• when I connect to my second monitor, a number of icon images on the start bar on the second monitor won't display
  
• a few times while using Google Chrome, my PC slows down considerably, the memory used by Chrome maxes out in Task Manager (and stays maxed out even when I shut Chrome off), and I am unable to see anything I type in any application I have open (not just Chrome) unless I alt-tab between applications - I have to restart for my PC to become usable
  

I've tried a number of suggestions related to fixing the sleep mode issue but none have worked for me so far. Here's what I've tried:

• Run the power troubleshooter
  
• Disabled my network adapter from waking the computer
  
• Using powercfg to disable processes that disrupt sleep mode
  
• Disabled fast startup
  
• Tried a clean boot and had the same issue
  
• Updated the latest drivers, Windows 11 updates, and BIOS version
  
• Disabled hybrid mode
  
• Scanned for viruses
  
• Ran system file checker and DISM tool
  
• Deleted the hiberfil.sys file
  

I have a X470 Aorus Ultra Gaming motherboard and AMD Ryzen 5 2600X CPU. Any thoughts or suggestions on other things to try would be much appreciated!