Windows 10: 2nd monitor display issue

I just recently updated Windows 10 and am unable to use my second monitor connected via an HDMI cable. This was working fine prior to the upgrade. I can use the PC only mode or the Second screen only mode, but not extend or duplicate.

:)

 

2nd display monitor

Hello, my name is Brad, I'm an Independent Advisor and I wanted to add to my colleagues' efforts.

Below is a link to a walk-through that will show you each step to enabling the 2nd monitor.

On the walkthrough, if you click the button that says "Open Display Settings" and says "Ok" to the prompt, the Display Control panel will be opened on your computer for you. Not worry, this page is hosted by a different part of Microsoft so it's perfectly safe.

Link:

https://support.microsoft.com/en-hk/help/434033...

 

Color Display on 2nd monitor

I am using Windows 10 on a Dell laptop with a 2nd monitor which has been working fine. For some unknown reason I have suddenly lost the full color range on the 2nd monitor. I don't know if I have changed some setting by accident or what. I have tried
resetting the defaults but that didn't change anything on the 2nd monitor. The primary screen on the laptop continues to work fine. Any suggestions what needs to be done to restore the full color range on monitor #2?

 

Dual monitor issue - 2nd monitor "out of range"

Hi,



Thank you for writing to Microsoft Community forum.



The error message Out of Range usually occurs when the video card feeds the monitor, a signal stream in excess from what the monitor can handle.



I suggest you to try the steps listed below and see if it works for you:

• Boot the computer in
  Safe Mode, and right click on the Desktop.
  
• Select Display Properties and choose a lower resolution.
  
• Reboot the machine and check if it works.
  
• If the issue persists, boot the computer again in
  Safe Mode, and go to Display Properties.
  
• Click on Advanced Display Settings, and choose
  Display Adapter properties.
  
• Under Monitor tab, choose
  60 Hz as the Screen Refresh rate.
  
• Apply the changes, boot the PC in normal mode to see if it works.
  

Regards,