Windows 10: Can't detect second screen

Discus and support Can't detect second screen in Windows 10 Drivers and Hardware to solve the problem; Windows can't detect my second monitor. The monitor has an VGA connection and my laptop an HDMI connection, so I'm using an HDMI to VGA adapter. My... Discussion in 'Windows 10 Drivers and Hardware' started by XavierC123, Mar 17, 2020.

  1. Can't detect second screen


    Windows can't detect my second monitor. The monitor has an VGA connection and my laptop an HDMI connection, so I'm using an HDMI to VGA adapter.

    • My computer: Lenovo IdeaPad S340
    • My Windows version: Windows 10 Home
    • Updated: I run windows update, the version is the last one


    Here's what I tried:

    • Unplug the cable and plug it again, one minute later
    • Unplug the screen from power and plug it again one minute later
    • Went to windows configuration and tried to "detect" screen, but it can't detect any screen. Here's what I can see:

    Windows can't find the second monitor:

    Can't detect second screen 64bd5a14-e38b-46ff-8e1e-7fc39bf8dba0?upload=true.png

    I can see different options for configuration, but only "show in screen 1" works. The other ones show an error message:

    Can't detect second screen d2b7f1ab-ec82-498d-b08d-670d569585ab?upload=true.png


    If I go to "advanced settings", I can find the second screen, but it says it is "inactive":


    Can't detect second screen c3d9b599-f3cc-4c43-aaae-03782ee98234?upload=true.png

    • In the device manager, I can find under screen adapters "IntelR IrisR Plus Graphics". Under monitors I can find "Monitor PnP genérico" integrated monitor and Fujitsu SL22W-1 LED second monitor.
    • I enabled and unabled those devices
    • I updated the controlers for those devices
    • I uninstalled and reinstalled those devices


    And so far, nothing is making Windows to work also on the second monitor.


    However, I tried with another computer and with the same second monitor, and it is working correctly. On this other computer, I tried both a direct VGA connection and a VGA-Adapter VGA/HDMI-HDMI connection. Both worked correctly. So, the problem is not on the second monitor nor in the adapter.


    Could you please provide with some hints or solutions to this problem? Thank you.

    :)
     
    XavierC123, Mar 17, 2020
    #1

  2. Project Second screen constantly appearing.

    Hi Norga,

    Thank you for using Windows 10.

    Let us know some more information so that we can diagnose and troubleshoot the issue in a better way:

    • what is the exact issue that you want us to help with? Do you want to get help in projecting a second screen or to remove the popup?
    • As you've said " I tried unsuccessfully to project a screen", do you wish to project a second screen currently?
    • What happened exactly when you tried to project a second screen? Did you receive any error message or any error code?
    The popup comes as the system might not be able to detect the monitors. I suggest you to update the Display drivers, it may force the system to detect the available monitors. Here is the steps:

    • Press “Windows + X” and select Device manger.
    • Locate the driver and expand the driver icon.
    • Right click on the driver icon and click on Update.

    Reply with the information and we'll be happy to assist you.
     
    Navneet Anand, Mar 17, 2020
    #2
  3. Laptop display does not detect itself

    Hi,

    In regards to your concern, since the second screen can't detect the display settings of your other laptop, we suggest that you perform the steps below and see if it helps:

    • Go to Settings.
    • Click on System.
    • Under System, choose Display.
    • Under Multiple displays, click on Duplicate these displays and apply.
    Let us know the details so we could further help.
     
    Acelyn Alc, Mar 17, 2020
    #3
  4. Can't detect second screen

    Windows 10 won't detect second screen

    I don't even have the option to choose another screen - Detect screen doesn't detect anything

    Plus if you look through that thread you'll see that most users have the same issue without a solution
     
    Amichai Naveh Marmor, Mar 17, 2020
    #4
Thema:

Can't detect second screen

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