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  2. Apr 24, 2024 · A buggy, outdated, or corrupted graphics driver can cause problems that may prevent Windows 10 from detecting a second monitor automatically. The easiest method to fix this issue is...

    • Best 4K Monitor

      Having an HD monitor is great, but having a UHD monitor...

    • Sydney Butler
    • Editor, Hardware And Cutting Edge Technology
    • Force Detect Displays. While automatic display detection usually works without a hitch, you can explicitly tell Windows to look for new attached displays.
    • Check That Everything Has Power. You should ensure that everything is connected to a power source and turned on. If the monitor or any in-between device, such as an active HDMI repeater, isn't getting power, then Windows won't detect the display.
    • Look for Misplaced Connections. Double-check that everything is plugged in where it's supposed to be. A common reason for this problem is plugging the monitor into the wrong display output.
    • Confirm the Display Is Set to the Right Input. Most modern computer monitors and virtually all TVs have multiple inputs. If you've got your PC plugged into HDMI 1, but the monitor is set to HDMI 2, for example, then you won't see anything on-screen.
  3. Learn how to fix issues with external monitors in Windows 10, such as not showing up, not extending, or not working. Follow the steps to update, restart, roll back, or reinstall your display driver, or use Windows Feedback Hub to file a bug.

  4. Jun 10, 2022 · Second monitor not detected? Here's how to fix it. Check that your monitor is powered on; Ensure your monitor and PC are connected; If you're using a graphics card, check you're using the...

    • Dale Fox
  5. Apr 21, 2024 · Try to manually detect your second monitor. Using the Settings app, you can sometimes force the system to detect your second monitor — here's how.

    • Why is my second monitor not showing up on Windows 10?1
    • Why is my second monitor not showing up on Windows 10?2
    • Why is my second monitor not showing up on Windows 10?3
    • Why is my second monitor not showing up on Windows 10?4
    • Why is my second monitor not showing up on Windows 10?5
  6. Jul 27, 2020 · A buggy, outdated, or corrupted graphics driver may be one of the main reasons why Windows 10 won’t detect your second PC monitor. To resolve this issue, you can update, reinstall, or roll back the driver to a previous version to fix and restore the connection between your computer and the second monitor.

  7. Oct 3, 2023 · If the second monitor is on, but there is no display on a Windows PC, the issue might be with your cable. Use these fixes to resolve the issue.

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