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Second Monitor Not Detected Windows 7

Second Monitor Not Detected Windows 7

Is your second monitor not detecting window 7? Don’t worry! Here you will find a couple of solutions on how to fix the issue if a second monitor has not detected windows 7.

You can work with many apps and play games with a second monitor. Web programmers and web developers frequently employ dual monitor setups. Having a second monitor allows them to work on the website code while simultaneously viewing the modifications on the other display.

There are a variety of reasons to connect two monitors to your Windows 7 Desktop computer, including providing a more immersive gaming experience. It would be quite inconvenient if Windows 7 failed to identify your second monitor. But don’t be concerned. You’ll be relieved to learn that it’s simple to fix in this article.

Second Monitor Not Detected Windows 7

Dual monitors can occasionally cause problems. Windows do not detect the secondary monitor, which is the most typical difficulty with dual monitors. Follow the steps below to resolve the problem on your secondary monitor and get back to work quickly.

So How To Fix If Second Monitor Not Detected Windows 7?

Option 1: Adjust the display settings on your computer

When Windows 7 fails to detect your second monitor, it’s most likely because the display settings for the second monitor are turned off. To change the display settings, follow these steps:

  • To open the Run box, hold down the Windows logo key and hit R on your keyboard.
  • Press Enter after typing control.
  • When you select View by Large Icons, click Display.
  • Select Adjust resolution from the drop-down menu.
  • Select Extend these displays from the Multiple displays section. Then click OK > Apply.

Check to see whether your second monitor is on. It’s amazing if your second monitor is detected. If it’s still not identified, you can try another method.

Click here, If you are interested in reading our latest buyer guide on Best Second Monitor for iMac.

Option 2: Revert your video driver to a previous version 

  • Press and hold the Windows logo key, then press and hold the Pause key on your keyboard.
  • Navigate to Device Manager.
  • Select Display adapters by double-clicking. Then pick Properties from the context menu when you right-click on your video driver.
  • In the Driver pane, select Roll Back Driver.
  • Select Yes. After that, Windows should revert your video driver to an older version.
  • Once it’s done, restart your computer to see if your second monitor is displaying.


Option 3: Install the most recent version of your video driver

If neither of the above techniques works, you can try updating your video driver to the most recent version. You may acquire the correct driver for your video card in one of two ways:

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Manual driver update: You may manually update your video driver by visiting the manufacturer’s website and looking for the most recent proper driver for your video card. Make careful to select the only driver that is compatible with your Windows 7 version.

Automatic driver update: If you don’t have the time, patience, or computer skills to manually update your video driver, Driver Easy can do it for you. Driver Easy will detect your system and locate the proper driver for your specific video card and Windows 7 version, which it will then download and install properly:

  • Download Driver Easy and set it up.
  • Open Driver Easy and select Scan Now from the menu. After that, Driver Easy will check your computer for any issues with drivers.
  • Select Update All to have all the missing or out-of-date drivers on your system immediately downloaded and installed. (The Pro version, which includes full support and a 30-day money-back guarantee, is required.) If you select Update All, you’ll be required to upgrade.
  • Check to determine if your second monitor is active by restarting your computer.


Option 4: Double-check that you have the correct cable.

You should use the correct cable for your displays and PCs’ cable ports. The following are the most prevalent connection types:

Make sure your computer and monitors are connected with the correct cable.

Option 5: Restore your drivers to an earlier version

Have you updated your graphic card’s driver and now your system isn’t detecting the second monitor? If this is the case, you’ll need to reinstall your graphic card’s driver. What method will you use to do this? Please read the instructions at this rollback driver before proceeding.


Option 6: Update the driver for your graphics card

We recommend that you upgrade your graphic driver to the most recent version if you haven’t already done so. There are two ways to go about it. One option is to use Microsoft Upgrade to update the graphic card driver, or you may get the official driver from the vendor’s website.


Option 7: Adjust the refresh rate

The monitor refresh rate will be changed using this approach. On Windows 7, we’ll teach you how to modify frequency.

  • To access Settings, hold down the Windows logo and press I. 
  • Select the Monitor tab.
  • Choose 60 Hertz as the screen refresh rate. If 60 Hertz was previously selected, choose anything else and then “60 Hertz.”
  • After that, click OK.
  • Use a second monitor to project your screen


Option 8: Try with a few different techniques

If you use a notebook, we recommend that you try some of the following tips.

  • While connected to your monitor, try to close the laptop lid (this means the laptop display will be temporarily disabled). The monitor will now be recognized as the primary display, and when you open the lid, both screens will be functional.
  • When connected through HDMI, put the computer to sleep and then wake it up. It worked for some users as well.
See also 


Option 9: Activate Multiple Displays

You’ll need to run NVIDIA or AMD software to activate Multiple Display if you installed the entire driver for your NVIDIA or AMD graphics cards. Using NVIDIA Control Panel, we’ll demonstrate how to switch on multiple screens.

  • NVIDIA Control Panel may be found by going to the Start menu and typing NVIDIA Control Panel.
  • NVIDIA Control Panel is now open.
  • Select a display option.
  • Click Set multiple displays
  • Choose the displays you’d want to use.

Option 10: Make sure your BIOS is up to date

If you have a motherboard that supports integrated graphics cards with two ports, you should upgrade your UEFI BIOS.

Method 11: Reinstall the prior version of your operating system.

If you are one of the customers who upgraded from Windows 7, Windows 8, or Windows 8.1 to Windows 10, and now you are unable to utilize the second monitor, we propose reverting to a prior version of Windows when everything functioned perfectly. Because your graphics card or driver for your graphics card is incompatible with Windows 7. You will have to wait for an appropriate graphic card upgrade. Please do not employ third-party website fixes.

Option 12: Check the display, splitters, and cables

First and foremost, three ways have failed to address your problem, and you are looking for the greatest remedies. Please be patient as we work our way through this. You will test your display as well as the cords that link your computer or laptop to the monitors using this procedure. You can utilize VGA, DVI, HDMI, and DisplayPort, as stated at the beginning of this post. Let’s begin with the monitor for testing.

Unplug the first monitor from the computer or laptop and attach the second monitor to the same cable if the first display is operating properly. But what if the second monitor doesn’t have the same cable as the first? Use a different cable and examine the second display in that scenario. You will need to replace your monitor if it does not operate on two separate ports and two other ports.

Please change the cable if the second monitor works on the first cable, but not the second. Also, if you’re using a VGA, DVI, or HDMI splitter and it breaks, you’ll need to replace it.

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Hint: If none of the above methods have worked, we recommend utilizing Restore Repair Tool, which can examine the repository for faulty and missing data. When the problem is caused by system corruption, this method usually works. In addition, Restore will optimize your system for optimal efficiency.


How do I get Windows 7 to recognize my second monitor?

  • Select Screen resolution from the menu bar by right-clicking any blank area on your desktop.
  • Select Extend these displays or Duplicate these displays from the Multiple displays drop-down box.

What do I do when my second monitor is not detected?

When Your Second Monitor Isn’t Detected, What Should You Do?

In Windows 7, fix if the second monitor is not detected.

  • Restart your computer.
  • Forcing Windows 7 to detect a second PC monitor is a good idea.
  • Connect a wireless display to your computer.
  • Make sure your display adapter is up to date.
  • The graphics driver can be updated, reinstalled, or rolled back.
  • Take Control of Your Displays.


Does Windows 7 support dual monitors?

Working with many monitors has never been easier than it is now with Windows 7. Although earlier versions of Windows allowed you to use several monitors, Windows 7 gives you more control over your display by allowing you to change the resolution, orientation, and look of objects on each monitor.

In Closing

Fortunately, this post will assist you in resolving the issue with Windows 7 not detecting a second monitor.  Second monitors are a simple and practical solution to boost productivity or increase gaming performance. Not only that, but it also provides a broader canvas that may be used as a second workstation for general multitasking.

Please share your own experiences in the comments section below.

This Article is Updated.

Robert Smith
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Robert Smith

Robert Smith is a technology lover and loves to write about laptops, monitors, printers, tablets, Apple products and anything that's related to computers and games. He is passionate enough that he maintains this blog regarding tech updates on a daily basis.