Windows 10: Why did Windows 11 stop seeing the second external monitor

I have a USB-c dock with 2 monitors connected. I switch the dock connection between 2 computers - my work computer running Windows 10 and my personal computer running Windows 11. I have been using this setup for about 4 months with no errors or issues. Yesterday, when switching the dock to my personal computer it stopped seeing both monitors connected to the dock. If I plug only one monitor into the dock, regardless of which monitor it is, it works fine as a single monitor. As soon as I plug in the second monitor, windows 11 stops seeing the larger - using the HDMI, and ONLY SEES THE MONITOR c

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windows 11 cannot detect my second monitor

Windows 11 cannot detect my second monitor. Help. I did all the suggested troubleshooting steps but nothing seems to work.

 

See through window issues in External monitor

Hi,



Thank you for writing to Microsoft Community Forums.



We will need some more information from you to help you with the appropriate troubleshooting steps. Please reply with the following details:

• How is the second monitor connected?
  
• Which build version of Windows 10 is installed on the computer? To check type:
  winver in the search bar on the Taskbar and hit
  Enter.
  

Since this is happening on the second monitor, I suggest you to try updating the Display drivers and check if the issue persists. Please follow the steps mentioned below:

1. Press Windows key + X, and select
   Device Manager.
   
2. Expand Display adapters.
   
3. Right click on the display driver and select
   Update Drivers.
   
4. Restart the computer if prompted.
   

Article for reference: Update drivers in Windows 10.



Please reply with the status of the issue, we will be glad to help you further.



Regards,

Nikhar Khare

Microsoft Community - Moderator

 

Updating to Windows 11 broke my external monitor

I gave you a series of links in Step 1 for the known issue of Windows not recognizing second monitor after Windows 11 upgrade, asking you to report back the results of each step in each link. I see no results posted except for the additional steps I gave in Step 2 for all things to be tried with the Display driver.

Please go back and perform all steps that are working for others with this known issue, and report back the results for each so I know what else to suggest. I am standing by here to help.