Windows 10: Second monitor won't display - Windows 10

Discus and support Second monitor won't display - Windows 10 in Windows 10 Drivers and Hardware to solve the problem; As the title says, I'm having an issue where the second monitor in my set-up won't display in Windows. Configuration: Motherboard: Asus Sabertooth... Discussion in 'Windows 10 Drivers and Hardware' started by RobertRGA, Feb 17, 2019.

  1. RobertRGA Win User

    Second monitor won't display - Windows 10

    As the title says, I'm having an issue where the second monitor in my set-up won't display in Windows.


    Motherboard: Asus Sabertooth A170 Mark 1

    CPU: Intel i5-6600K

    GPU: ASRock Phantom Gaming Radeon RX590 running Radeon Adrenalin 19.2.2

    Monitor 1: Alienware AW2518hf (connected w/ DP)

    Monitor 2: BenQ GW2765 (connected w/ HDMI)

    Windows 10, fully patched

    Problem description:

    As soon as the loading screen for Windows appears, the BenQ monitor goes black and I get a "no signal detected" message. From that point forward no image ever displays and no setting changes are ever reflected on that monitor.

    When in windows, both monitors are detected by the OS and the Radeon Adrenalin software. They can both be seen under "Display Settings" with all the dual monitor options available and configurable.

    Steps I've already taken:

    1 - Verified that all connections were secure (yes it's plugged in lol)

    2 - Plugged the BenQ into another port on the graphics card

    3 - Completely re-installed Windows

    4 - Completely re-installed the Radeon drivers

    5 - Voodoo Sacrifice...

    6 - And now I'm here.

    I don't understand how it works perfectly in the BIOS (so I know hardware wise it's good and connections wise it's good) but then it goes totally out when Windows starts. With a fresh install and all new drivers, I'm not sure what else to try. Any help is greatly appreciated.



    RobertRGA, Feb 17, 2019
  2. damtachoa Win User

    4870x2 won't display at 1680x1050 at all!

    OK. Now I know what ur problem is. Step by step:
    1. Go to Catalyst Control Center
    2. Click on the word "Graphic" right on top left corner. It will display drop down menu
    3. Click on Display monitor and will see the list of monitor at near bottom
    4. Right Click the monitor and select "Configure". It will show up the window
    5. There will be 3 option to select. Select the middle one and then click on the tab which show the bar with 15%.
    6. Drag the bar to max, and the screen will stretch to the native resolution 1680x1050.
    7. Also click the tab with showing RGB drop down list and select the last one (it will change to image quality for pc).
    That's it. Good Luck.
    damtachoa, Feb 17, 2019
  3. Windows 10 doesn't show native display for second monitor


    In order to for your Windows 10 to show the native display for the second monitor, you may revert all screen settings back to default, and see if this resolves the issue. If it doesn't, you may try these steps:

    • Press Windows key + P.
    • If your monitor settings is on Duplicate, try choosing
    • If your monitor settings is on Extend try choosing the
    • Check the resolution if both monitors are showing the same resolution value.

    Let us know the result for us to assist you further.

    Jesrael Bor, Feb 17, 2019
  4. Second monitor won't display - Windows 10

    windows Can't detect my second monitor

    Hi Max,

    Thank you for posting your query in Microsoft Community.

    I understand that you are having a tough time working on the computer.

    I will certainly help you to resolve the issue.

    • What happens when you try to connect the second monitor?

    • Do you receive any error code/message?

    • Have you tried to connect the second monitor on a different port?
    I suggest you to connect second display using a different port available on your PC and check if the second display works. If second display works in other port, then the possible cause for this issue may be discrete video card driver.

    Let us try the following steps, and check it helps.

    Step 1: Run the Hardware and Devices

    Hardware and Devices troubleshooter checks for common problems and makes sure that any new device or hardware connected to your PC is installed correctly.

    • Type troubleshooting in the search bar.

    • Select Troubleshooting.

    • Select View all on the top left corner.

    • Click on Hardware and Devices.

    • Follow the on-screen instructions to run the troubleshooter.
    Step 2: Update the Display Adapter.

    • Press Windows key + X and click on
      Device Manager.

    • Expand Display Adapter.

    • Right click on the video driver and select
      Update Driver Software.

    • Restart the computer.
    Also, see:

    How to: Install and Update drivers in Windows 10

    How to add and use a second monitor with Windows 10

    Hope it helps.

    Let us know the status, we are glad to assist you further.
    Abdul_Malik, Feb 17, 2019

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