Windows 10: New DP installed monitors will not Extend.

Newly installed Dell monitors via a DP cable will not extend. Does not seem to identify second monitor. Duplicate works fine. i have tried multiple methods and cords and accessory devices. It was working via VGA cables prior.

:)

 

Trouble with 2 monitors

Hi Tim,

Thank you for posting your query in Microsoft Community.

I suggest you to change the settings to Extended Monitor and check if it helps.

Please follow below steps:

• Right Click any ware of the Desktop, and launch Personalization.
• Go to dual monitor settings under personalization, and change it Extended Monitor.

Please get back to us for future support, we’ll be glad to assist you further.



Thank you.

 

(4K DP, 1440p DP, 1200p DVI-D) Triple monitor setup; 2 monitors have the same background when background is set to slideshow shuffle

Answering your 1st set of questions above:

1. I use Method 1, which you detailed.
2. Yes.
3. Well over 2000.
4. Everything works just fine when 3 monitors are connected via HDMI, DVI-D, and DP. Once 2 monitors are connected via DP, the above problem presents itself.
5. Dell XPS 8500 Special Edition.

Creating a new user account does not solve the problem.

 

Extend Display to second and third monitors

Hi Ian,



Thank you for writing to Microsoft Community Forums.



I appreciate the efforts taken by you in resolving the issue. I understand that you are unable to extend the display to second or third monitor. I’ll certainly assist you with the issue.



However, it would be great if you can help us with the details requested below:

• What happens when you try to extend the display?
  
• Do you receive any error message/code?
  
• Are you aware of any changes made to the computer recently?
  
• 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.
  
• What is the make and model of the laptop?
  

Ideally, to extend the display we can use the shortcut Windows logo key + P, and select
Extend from the menu.



I would suggest you to refer the troubleshooting steps mentioned in the article

Troubleshoot external monitor connections in Windows 10 and see if that helps.



For additional information, see
Set up dual monitors on Windows 10.



Let us know the results.



Regards,

Nikhar Khare

Microsoft Community - Moderator