Windows 10: Window not detecting second screen

Discus and support Window not detecting second screen in Windows 10 Ask Insider to solve the problem; It was working fine before the recent update. I've tried disabling/enabling the driver, update the driver, re-installing the driver, manually detect on... Discussion in 'Windows 10 Ask Insider' started by /u/91837throwaway, Sep 17, 2020 at 2:02 AM.

  1. Window not detecting second screen


    It was working fine before the recent update. I've tried disabling/enabling the driver, update the driver, re-installing the driver, manually detect on the display setting, change HDMI cable, and nothing worked. please help

    submitted by /u/91837throwaway
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    :)
     
    /u/91837throwaway, Sep 17, 2020 at 2:02 AM
    #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, Sep 17, 2020 at 2:15 AM
    #2
  3. 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:


    Window not detecting 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:


    Window not detecting 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":


    Window not detecting second screen c3d9b599-f3cc-4c43-aaae-03782ee98234?upload=true.png


    • In the device manager, I can find under screen adapters "Intel(R) Iris(R) 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
    • I restarted Windows after every change

    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.
     
  4. LAPIII Win User

    Window not detecting second screen

    Windows won't detect by second display.

    I have my monitor and TV connected to my GPU. In Display Settings, under Rearrange your displays I have the 2nd highlighted. Clicking the Detect button will render: Code:
    It isn't listed in Devices:


    Window not detecting second screen [​IMG]


    Nor Sound:


    Window not detecting second screen [​IMG]


    It is listed in Control Panel:


    Window not detecting second screen [​IMG]
     
Thema:

Window not detecting second screen

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