Windows 10: After newest Windows 11 Pro updates all monitor on random basis screens go off and than on...

This week, the 3 P/Cs I have did auto Windows 11 pro updates Now all 3 on a random basis the screens go blank/dark/out and then On again Never happened until these updates were done and P/Cs rebootedI looked at all 3 as to screen settings and cannot find any setting changed that would cause this and even set so monitors are always on and no sleep mode, even power mode set to always on This really is a problem, and seems to do this only when I am not doing something on P/Cs for a few minutes Any ideas what this new updates did and how to correct as P/C are hard to use with screens keep going bl

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Windows 10 KB3213986 Update Cripples Multi-monitor Gaming

The recent Cumulative Update for Windows 10 (KB3213986) cripples multi-monitor gaming, looking at the way Microsoft worded its "known issues" text. After the update is applied, users with multi-monitor setups could experience screen stuttering or clipped screens when running 3D apps on machines with more than one monitor. The only workaround Microsoft suggests for now entails running your 3D apps in non-fullscreen modes, such as windowed-maximized (pseudo-fullscreen) or windowed modes. Microsoft also goes as far as to suggest that people with multi-monitors could try starting their 3D apps with just one monitor connected.

"Users may experience delayed or clipped screens while running 3D rendering apps (such as games) on systems with more than one monitor," the change-log for the KB3213986 update reads. "To work around this issue please consider the following options: 1. Running the application in Windows mode (not full screen), or 2. Starting the application with only one monitor connected," it adds. The update effectively cripples multi-monitor gaming, using technologies such as AMD Eyefinity or NVIDIA 3D Vision Surround.





Source: Microsoft

 

External monitor blanking often

Hi,

Please answer these questions to assist you better.

• What is the make and model of your computer and external monitor?
• Have you installed all pending Windows and driver updates?
• Do you get any error message?

I suggest you to install all pending Windows updates in your PC and also update Display drivers. Follow the steps below.

Step 1: I would suggest you to check and install any latest Windows Updates available.

• Go to Start and then Settings.
• Click on Update and Recovery.
• Check for updates under
  Windows Updates.
• Restart the system and check if the issue is resolved.

Step 2: Please refer to the following Wiki article created by
Andre Da Costa on How to: Install and Update drivers in Windows 10.

Redirecting

Do let us know if you still get random black screen in the external monitor. Thank you.

 

Windows 10 External Monitor only :: How to set Portrait orientation?

Thanks Elise,

I found more links which suggest

1. turn one of the monitor
   
2. feedback to Microsoft
   

Using Steps Recorder on Two monitors. (microsoft.com)

How to limit Problem Steps Recorder to single - Microsoft Community

I need assistance on both suggestions; how to

1. turn off laptop monitor?
   
2. locate feedback hub on Cortana?
   

My workaround is to use PowerPoint Screen Recorder but this need additional screen capture.

The reason for Screen Recorder is Windows 10 Mouse Cursor for Office Menu item disappear when select Screen Capture App. It is cumbersome to show Tech Support what is selected on Office App on captured screen...

Thanks Ahead!