Windows 10: 2nd Montior (VGA) detected but always blank

I am having trouble getting my second monitor to work. This system has been working with 1 monitor just fine. I dug up an older HP VGA monitor to add on and the system detects the monitor just fine, but nothing appears on it.

The HP monitor works fine when I connect it using the same cable to my wife's laptop.

I configured Windows to DUPLICATE the monitors (for now). I have searched for solutions and find others with similar issues, but no solutions that seem to apply to my situation.

Thank you for any advice you can give!!

Here are some screen shots that might help:

Device Manger Detects Both Monitors:





Windows Detects Both Monitors In Graphics Settings:





AMD Control Center Sees Both Monitors





Windows Version #: 1909 (Build 18363.752)

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Just one more detail...The HP monitor seems to be detecting a signal because the Check Video Cable message goes away and it indicates that it is set to 1600 x 900 - 60Hz

:)

 

Windows 10 stopped detecting 2nd monitor

Hello Chaya,

When 1 and 2 are posted under the Display option, it means that the device is detecting a video input. Concerns related to signal input could be associated with the driver or the hardware component of your device. To help us determine the appropriate troubleshooting
steps that can resolve your concern, we would like to ask the following questions:

• Do you see your monitors under Display settings? To check, right-click on the blank area on your desktop and select Display settings.
• What projection option did you choose for your monitors? To check, press Windows + P on your keyboard.
• What is the make and model of your device?
• How are the monitors connected to your device? Examples of connections are VGA, HDMI, and DVI.

In the meantime, you can follow these steps on how to configure your other monitor on Windows 10. To do this, follow the steps below:

• Check the back or the side of your device to see if it has any of the connectors below.
  
  
  
  
  
  
• Connect the secondary monitor to your laptop via VGA,
  DVI or HDMI port.
• Configure display settings. Right-click on the blank area of the desktop and choose
  Display settings.
• Click Identify to show numbers on corresponding displays (1 is the primary).
• Click the Multiple display drop-down list, and then select
  Extend these displays.
• Once done, restart your device to apply the changes and check if the issue persists.

Note: If you cannot see the additional monitor(s) listed. Click
Detect. If it does not work, try restarting your computer and do the steps of switch between display modes by pressing
Windows key + P key on your keyboard.

Your reply is most important for us to ensure we assist you accordingly.

 

my acer aspire laptop dosent detect external vga monitor .

Hi Sivaram,

Thank you for writing to Microsoft Community Forums.

1. Since when are you facing this issue?
   

This issue might be happening because of the faulty drivers. That’s the reason you are getting intermittent connection on external monitor.

However, you may try the below suggested steps.

Step 1: Try connecting on a different monitor and check if the issue still persists.

Step 2: Try using a different VGA cable to connect with external monitor and check the status of the issue.

Step 3: Update display driver adapters

You may refer the article
Update drivers in Windows 10 and check the status of the issue.

Step 4: Check for an updated Video driver on the

Acer drivers and Manuals page.

For more information you may also refer
troubleshoot black screen or blank screen errors.

Hope it helps.

Muralidhar

Microsoft Community Moderator

 

No VGA detected

Hi Becky,

Answer these questions which will help us to assist better:

• What is the make and model of the Windows 10 PC?
• Using which cable is the monitor connected to the computer?

If you tried connecting a VGA cable, try connecting an DVI/HDMI cable (if the monitor supports) and check.

Get back to us with the details to further assist you with this issue.