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How to Fix Second Monitor not Detected on Windows 10

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Navigating today’s fast-paced world demands effective multitasking, making a second monitor a valuable tool. In offices, it’s common to split tasks between live data on one screen and detailed analysis in spreadsheets on another. At home, the convenience of web browsing on one monitor while watching educational content or taking notes on the second is undeniable.

Yet, what if Windows 10 fails to detect the second monitor? Several potential culprits include damaged cables, insufficient PC support, outdated drivers, or driver limitations. This blog post serves as a comprehensive guide, offering step-by-step solutions to troubleshoot and resolve issues hindering the automatic detection of a second monitor in your system.

Fixing the Additional Monitor Connection Problem Through Fixing the Hardware Issues

  • Restart your system for a stable connection.
  • Verify the selected input using built-in controls on your monitor.
  • Ensure a secure cable connection between the graphics card and monitor.
  • Try disconnecting and reconnecting the cable.
  • Replace the cable if damaged, checking for defective pins.
  • Test different ports on your graphics card and monitor.
  • Swap monitors to rule out internal display issues.
  • Confirm the graphics card is functioning correctly.
  • Check for Surface Dock issues.
  • Update Firmware to address bugs (follow manufacturer’s instructions).
  • Verify power source and turn on the monitor.
  • Refresh the connection by restarting the computer.
  • Choose the correct input port in the monitor’s controls.
  • Check and reconnect the signal cable securely.
  • Test with another known working monitor.
  • Disconnect peripherals to rule out conflicts.
  • If using a dock, connect the monitor directly to the computer.
  • Update external monitor firmware for bug fixes and compatibility.

If the initial troubleshooting steps mentioned earlier don’t resolve the second monitor issue, it might be a software-related problem. Consider the following steps to address the software issue potentially.

How To Fix External Monitor Connection Issues From Settings

Once you’ve confirmed the absence of any physical issues with the connection, monitor, or computer, you can utilize the Settings app to prompt the system to recognize the second monitor. This should help resolve the issue and allow you to use your second monitor without any further problems.

Force second display detection.

To manually detect a second monitor in Windows 10, follow these steps:
  1. Press Win + S to open the Search function.
  2. Enter “settings” in the search box and choose Settings from the results.
  3. Click on System once the Settings interface is displayed.
  4. Navigate to the left sidebar and select Display.
  5. In the Multiple Displays section, click on the Detect button.

Second Display Detection

You can check to see if the “second display not detected” issue has been resolved.

Connect wireless external display

  1. Open “Settings.”
  2. Select “Devices.”

Connect wireless external display

3. Click on “Bluetooth and other devices.”

Connect wireless external display

4. Choose “Add Bluetooth and other devices.”

Connect wireless external display

5. Tap “Wireless display or dock.”

Doce

6. Ensure your wireless monitor is turned on and discoverable.

7. Select your display from the available list.

8. Follow the onscreen instructions.

Once the process is finished, the system will recognize the wireless display as a newly added external monitor.

How To Fix External Monitor Connection Issues From Latest Graphics Drivers

The inability of Windows 10 to recognize your second PC monitor could stem from a malfunctioning or outdated graphics driver. To address this, consider updating, reinstalling, or reverting the driver to an earlier version, restoring the connection between your computer and the second monitor.

Update the Graphics Driver

Update your graphics card driver via Windows Update by following these steps:

  1. Open Settings.
  2. Click on Update & Security.
  3. Choose Windows Update.
  4. Click “View optional updates” and select Driver updates.

Windows Updates

5. Check the graphics driver for updates on Windows 10

6. Click “Download and install.”

Download and install

After following the steps, Windows Update will automatically install the graphics driver, resolving the issue of the external monitor not being detected. In case a newer driver isn’t available through Windows Update, visit the manufacturer’s support website to download and install the latest version, if provided.

Reinstall graphics driver

If updating the graphics driver proves ineffective, attempt a reinstall to eliminate any corrupted or incorrect files, installing a fresh version on Windows 10. Follow these steps:

  1. Open Start.
  2. Search and open Device Manager.
  3. Expand Display adapters.
  4. Right-click and choose Uninstall device.

click Uninstall device.

 

5. Uncheck the box to delete the driver software, then click Uninstall.

Uninstall

 

6. Restart your PC.

7. Open Device Manager, right-click on the computer name, and select “Scan for hardware changes.”

Scan for Hardware Changes

 

Once you finish the process, Windows 10 will automatically reinstall the driver. However, it’s advisable to follow the above steps to ensure the correct installation of the driver.

Rollback graphics driver

If you recently updated the computer or manually upgraded the graphics driver, and Windows 10 struggles to detect the second monitor, consider rolling back to the previous driver version. To do this, follow these simple steps:

  1. Open the Start menu.
  2. Search for “Device Manager” and select the top result.
  3. Double-click on “Display adapters” to open the branch.
  4. Right-click on the specific adapter and choose “Properties.”

Properties

  1. Click the Driver tab.

Click the Driver Tap

6. Click the Roll Back Driver button. If the “Roll back driver” button is disabled (grayed out), rolling back the driver directly is not possible. Instead, visit your device manufacturer’s support website to locate and install an older version of the driver.

Roll Back Driver

7. Choose an option to answer the question.

8. Click the “Yes” button.

9. Restart the device.

Now, Windows 10 will initiate the detection of your external display and function normally.

Updating Through the GPU Manufacturer

GPU manufacturers, including Intel, AMD, and NVIDIA, often provide driver updates to improve graphics card performance and fix bugs. These updates are often available on the manufacturer’s websites, usually in the Downloads or Drivers area.

Make sure you select the correct drivers for your device and operating system specs. Alternatively, you can use dedicated software tools provided by these manufacturers, such as Intel Driver and Support Assistant, Nvidia GeForce Experience, and AMD Software: Adrenaline Edition, to simplify the process of installing the appropriate graphics driver for best performance.

Check manufacturer and driver versions:

To verify the graphics card vendor and driver version in Windows 10, follow these steps:

  1. Open Start.
  2. Search for System Information and click the top result.
  3. Double-click to expand the Components branch.
  4. Select the Display category.
  5. Confirm Adapter Type and Driver Version to identify the graphics card model and current version.

Check manufacturer and driver version

After completing the steps, visit the official links below to locate, download, and install the correct driver.

Intel

NVIDIA

AMD

Conclusion

If Windows 10 fails to display your second monitor, the issue is likely a driver problem. Follow the sequential steps above to resolve this common problem conveniently at home.

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