Windows 10: Multiple displays monitor A/B are the same size but Windows thinks my laptop monitor is the...

I have two 24" ProDisplay P240va monitors that are connecting correctly to my laptop and the desk extension to the laptop screen is functioning correctly. However, in settings→Display all three monitors are showing the same size, when in the past, Windows has identified that my laptop has a 12" screen therefore the size of the laptop in the arrangement diagram at the top would should two boxes of identical size and one that is 1/4 of that size. I could then align the landscape extension of the desktop with the bottom of all three screens aligned. Right now, if I cross from the monitor to th

:)

 

monitor display size

Hi Kathy,

This issue with monitor display can be caused by screen resolution problems.

As an initial troubleshooting step, try changing the screen resolution by following the steps below:

• Right-click on the desktop screen.
• Select Display settings.
• Click Display.
• Under Resolution, click on the drop-down menu and change the screen resolution.
  
  Note: You can select the most recommended resolution (1920 x 1080) if applicable and see if the issue will persist.

Let us know if you have any other concerns.

 

Desktop Size exceeds Monitor Display Size

Hi Spud,

For us to better assist you with your monitor display size issue, we'd like to know the following:

• Which build and version of Windows are you running on your computer?

To check, press Windows key + R > type winver
> hit Enter.

• Is this the first time you've tried connecting your monitor to the Windows 10 computer?
  
• If no, were there any changes made to your computer prior to this issue (e.g. Windows updates)?
  

We're looking forward to your reply.

 

Full screen with multiple monitors

Hi Adrian,

Thank you for posting your query on Microsoft Community.

I understand that you need to get Windows 10 full screen / maximize to span multiple monitors rather than just one monitor.

Please answer the below question to assist you better.

What is the make and model of the computer?

Follow the below methods and check if it helps.

Method 1:

Press Windows Key + P Keyboard Shortcut

1. Close all open programs.

2. Hold down the Windows key and press the
P key on your keyboard.

3. Select one of the following display style options

o PC Screen Only

o Duplicate

o Extend

o Second Screen Only

Method 2: Display Settings Menu

• Close all open programs.
• Right-click an empty area on your desktop, and click Display Settings.
• Click the Multiple Displays drop-down list, and select
  Duplicate these displays or Extend these displays or
  Show only on 1 or Show only on 2.
  
  If you cannot see the second monitor(s) listed, click Detect. If this does not work, try to reconnect the cables on your monitor, restart the computer and repeat steps 1 and 2.
• Click Identify to see which monitor is number 1 (Primary Monitor) and number 2 (Secondary Monitor).

• Click Keep Changes if you are prompted to save the changes made to the display settings.

Hope this information is helpful. Please do let us know if you need further assistance, we’ll be glad to assist you.