Fix Second Monitor Not Detected on Windows 10 [Solved]

April Cai, in Common error Tags: DriversWindows 10

To get more work space or better game experience, you would connect dual or more monitors to your Windows 10. If your second monitor can’t be detected, don’t worry. You’re not alone. Many Windows users are reporting it. The good news is you can fix it.

Why my Windows 10 can’t detect the second monitor?

A compatible and updated display driver enables the successful contact between your Windows 10 and monitors. If the display driver is old or incorrect, your Windows 10 can’t detect the monitor.

How do I fix this error?

Here are 2 solutions you can try to fix this problem. You may not have to try both of them; try Method 2 if Method 1 did’t solve your problem.

1. Roll back to previously installed display driver

2.Update your display driver

Method 1: Roll back to previously installed display driver

Sometimes the new drivers don’t work on Windows 10. So you can try to roll it back to the previously version.

1) On your keyboard, press the Windows logo key  and to invoke the quick-access menu.

2) Click Device Manager.

3) In Display adapters section,  right-click on your display device software to select Properties.

4) In Driver section, click Roll Back Driver.

5) Go on to follow the on-screen instructions.

6) When it’s done, reboot your Windows 10 to see if it can detect your second monitor.

Method 2: Update your display driver

If roll back display driver to previous version didn’t serve you,  make sure to update your display driver to the latest one. 

To update display driver, you can download the latest one from your monitor manufacturer’s website manually. If you are not a tech-savvy, we advise that you use such a 100% safe and helpful driver tool to update drivers automatically —  Driver Easy. Under its help, you can say goodbye to driver headaches and delays forever. 

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to a flagged display driver to automatically download and install the correct version of this driver (you can do this with the FREE version).

Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).

4) Restart your computer and check to see if your Windows 10 can detect the second monitor.

That’s all there is to it.
Please feel free to leave your comment below if you have any questions, thanks.

Help Us Improve Article
  • Raze Arein

    I’ve been working for two hours trying to figure this out with an HPes. Rolling back the driver worked like magic. Thank you so much.

  • First just press WINDOW KEY + P and see if you can Simpy add the 2nd display.

    • Kayra Gemalmaz

      God bless.

    • I didn’t know there was such a shortcut in Win 10! Thanks for the tip, it solved the problem in my case.

  • Elisa

    I had the same issue I have HP Pavilion Notebook – 17t-g100 CTO (Touch) and I had to go to the HP website and download an older driver for my display adapter (Intel Graphics 520), but this solve the problem, now I just need to fix the colors but is better than not having a dual monitor.

  • MJ343

    Alright so my 2nd monitor(previously a tv) was working just fine. I unplugged it for something, and then when I put it back in, it won’t detect it at all. Got the No Signal on it. The rollback method did not work at all. Any suggestions on if Driver Easy still does not fix my problem? The TV works but for some reason it’s not getting a signal anymore. If D.E. fixes it, then I’ll update this comment. But suggestions would be welcome!

    • jr92

      I’m having the same issue with my second computer monitor. After updating windows it no longer is working- very frustrating. Hopefully someone will have some suggestions!

  • Joy Kodani

    THANK YOU! THANK YOU! THANK YOU! I have been struggling my computer randomly ceasing to detect my second monitor for months. Until yesterday, simply deleting my driver software and rebooting did the trick. But after two days of multiple attempts and copious swearing, I finally found your fix in a desperate Google search. It worked like a charm. Color me happy!

    • April Cai

      Hi, Joy Kodani! Very glad we could help?

  • Barb

    Hello! Roll back is not showing up for me,

    And when I go to update the driver, it’s telling me that it is updated. Any advice?

    • April Cai

      Hi, Barb. To get the previous version or the latest version of your driver, you can choose to download from your display adapter manufacturer’s website as we mentioned in the article. For some reasons, Microsoft might not detect the update for you, thus you need to update the driver manually.If you want to save time, you can take a try on Driver Easy.