5 Fixes to Try When Windows Doesn’t Detect Your Third Monitor

Adding multiple monitors to your computer is pretty straightforward with Windows, but sometimes the system won’t recognize the additional monitors, which can lead to frustration.

Sometimes Windows fails to recognize a third monitor. And while this is by no means a Windows-exclusive problem, Microsoft’s operating system has ways to fix the problem, whether it’s hardware or software related.


Below we have discussed five effective troubleshooting methods that have worked for other affected users.

1. Reconnect the monitors

If one of your monitors in a multi-monitor setup is not working, the first thing to do is reconnect them all one at a time. More often than not, the problem is caused by a temporary glitch in the system, and reconnecting the monitors from scratch can fix the problem.

To get started, disconnect the cables, then configure the monitors one by one.

2. Update your graphics drivers

An outdated or corrupt graphics driver can also prevent your PC from detecting the third monitor. Drivers allow Windows to detect and use hardware components. So you may run into problems when the drivers themselves don’t work properly.

The solution in this case is simple: you just need to update the graphics drivers. In this method, we will first install an updated version of the graphics driver on your system.

If this is not enough, then we will proceed to disable the Intel Integrated GPU driver.

To install the latest updates, here is how to proceed:

  1. Hurry To win + R together to open Run.
  2. Type devmgmt.msc in Run and click Walk in.
  3. In the next window, expand the Screenshot taken section and right-click on your graphics driver.
  4. Picking out Update driver from the context menu.
  5. Picking out Automatically search for drivers in the next dialog box.
  6. Now wait for the computer to check for an updated version of the driver. If you find one, install it by following the on-screen instructions.
  7. If the Device Manager method does not work, there are other ways to update the graphics driver in Windows that you can try instead.

Now you can check if the issue is resolved. If not, try disabling the Intel Integrated GPU driver in Device Manager. There are times when this driver interferes with the Windows default graphics driver process, causing issues like this.

Follow the steps below to do so:

  1. Open Device Manager and expand the Screenshot taken section.
  2. Right-click Intel Integrated GPU Driver and choose Disable device from the context menu.

You can now try reconnecting the third monitor and check if it works now.

3. Run the Hardware and Device Troubleshooter

Another way to troubleshoot issues with hardware is to use the relevant troubleshooters built into Windows. The most appropriate tool, in this case, will be the Hardware and Devices Troubleshooter.

This troubleshooter scans the system for hardware-related issues. If any issues are found, it will automatically fix them or recommend effective fixes that you can apply.

Here is how to run this utility:

  1. Hurry To win + R to open Run.
  2. Type cmd in Run and click CTRL + Gap + Walk in to open the command prompt with administrative privileges.
  3. Alternatively, you can type cmd in Windows search and choose Execute as administrator from the displayed results.
  4. Once you are in the command prompt, type the command mentioned below and click on Walk in.
    msdt.exe -id DeviceDiagnostic
  5. You should now see the Hardware and Devices Troubleshoot dialog on your screen. Click on Next above to start the initial scan.
  6. If the troubleshooter identifies a problem and suggests a solution, click Apply this hotfix.
  7. If no problem is detected, click Close convenience store and proceed to the next method below.

4. Change settings in the manufacturer’s control panel

It is also possible that the display settings in the graphics card control panel are not configured correctly. To make sure the settings are correct for you, you need to access the multiple display settings in your graphics card’s control panel.

The steps to follow vary depending on the graphics card you are using. However, you can usually access these settings by expanding the Display section in the right pane of Control Panel.

Once you can access these settings, make sure the boxes for all the monitors you want to use are checked. Hopefully adjusting these settings will fix the problem for you once and for all.

5. Choose extended projection mode

Typically, the display is automatically extended to the second and third monitors when you connect them to your computer. If this didn’t happen automatically for you, you won’t get any signal on the third monitor. It may seem like something is wrong, but in truth, Windows knows it’s there; it just hasn’t been told to use it yet.

Luckily, you can tell Windows to use it yourself. Here’s how:

  1. Hurry To win + P to launch project settings and choose PC screen only among the options.
  2. Now carefully disconnect the additional monitors and reconnect them.
  3. Launch the project settings again and this time choose To deploy themselves.

Another way to do this is through Windows Settings. If the above steps don’t work for you for some reason, follow these steps:

  1. Hurry To win + I to open the Settings app.
  2. Picking out System > Display.
  3. In the next window, click on the problematic display and click on Multiple displays.
  4. Picking out Extend these displays.

Use multiple monitors smoothly

Using multiple monitors has many advantages. they optimize your work performance and significantly reduce downtime. Adding a third monitor to your computer is usually pretty straightforward, but sometimes you may run into issues. By now, you should have fixed the problem with one of the methods listed in this guide.

About Sally E. Bartley

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