Windows 10: Cannot Connect Multiple External Monitors

For a long time, I just had one external monitor connected to my Windows 10 laptop. When I got a second external monitor, my PC was not detecting it. I could not see it in the settings. All the monitor was doing was duplicating what was happening on my first external monitor. Even if I press Win + P simultaneously, I cannot see an option to extend the second external monitor. Please help as soon as possible. Thank you.

:)

 

i have a problem to connect 2 monitors.

Hi Ron,

Thank you for posting your query in Microsoft Community.

• What changes did you make in the BIOS? As making the changes in the BIOS is only recommended by Microsoft if done by the manufacturer.
  

• How are you connecting to the 2nd monitor?

I suggest you to follow the steps from this article below:

Windows help & learning - Microsoft Support

[Applies to Windows 10 as well]

Regards.

 

Laptop screen will only work once it has been connected to an external monitor, even if that monitor is switched off

Having an issue whereby I cannot see or use the Laptop screen without first plugging it into an external monitor.

• 
  Upon Windows startup unconnected to any external monitor
  
  • 
    DELL opening logo can be seen on Laptop screen
    
  • 
    Screen goes black with backlight
    
  • 
    Mouse pointer can be seen onscreen if moved to the right, as though a second monitor is connected on the left hand side.
    
  • 
    Attempting to press enter and type in password in the correct order as though the screen was functional does not do anything
    
• 
  Upon connecting to an external monitor (even if switched off)
  
  • 
    Laptop screen will suddenly appear, all functionality restored
    
• 
  Upon disconnecting again from external monitor
  
  • 
    Laptop screen remains visible and functional
    
  • 
    Lock screen /unlock screen no problem
    
• 
  Upon shutting and opening the laptop lid
  
  • 
    Screen black with backlight, same results as windows startup, mouse pointer can be seen and moved as though a second screen is connected on the left
    
  • 
    No functionality until reconnected, even for a second, with an external monitor.
    

Troubleshooting:

• 
  Restarting multiple times, checking multiple display screen is not activated:
  
• 
  

***Post moved by the moderator to the appropriate forum
category.***

 

External Monitors and Ethernet connection--Windows 10

Hi,

Thank you for contacting Microsoft Community.

Drivers for basic functions like storage, networking, input, and display come with Windows. As this version of Windows is still in development stage, some devices might not work correctly.

You can try running the hardware troubleshooter and check if it helps:

Follow these methods.

• Press Start, type troubleshooter
  and choose Troubleshooting from the list.
• Click on Hardware and Sound.
• Click on Hardware and Devices.
  
• Follow the onscreen instruction.

Method 2: I would suggest you to try all the steps from the following link: (Applies to Windows 10 as well)

Connect a second monitor or projector

Windows help & learning - Microsoft Support

Also refer to the link: Get the best display on your monitor

Get the best display on your monitor

Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.