There are two ways you can get the right driver for your video card: manually or automatically. If rolling back your video driver doesn’t enable Windows 10 to recognize your second monitor, it’s likely you’re using the wrong driver. Note: If the Roll Back Driver option grayed out, you can download a previous video driver from the manufacturer’s website for your video card and install it on your Windows 10, or try the following Method 2.ĥ) When complete, restart your computer, and see if Windows can now detect your second monitor. To check if this is what’s causing your problem, simply roll back to a previous version of your video driver (aka ‘display driver’).ġ) On your keyboard, press the Windows logo key and R (at the same time) to invoke the Run box.ģ) In the Display adapters section, right-click on your display device software, and select Properties.Ĥ) Select the Driver tab and click Roll Back Driver, then follow the on-screen instructions. Sometimes the latest drivers don’t work properly on Windows 10. Make sure your monitor refresh rates are set to sameįix 1: Roll back to a previously installed video driver.Roll back to a previously installed video driver.If unluckily, after dealing with your video driver problem, Windows 10 still can’t detect your second monitor, try Fix 3, then Fix 4. If it doesn’t, updating the driver almost certainly will. Rolling back the driver to an older version may fix the problem. If your video driver is out of date, incorrect or faulty, Windows 10 (and Windows 7) won’t be able to extend or mirror your desktop to your second display.

Read on to find out how… 4 Fixes for ‘second monitor not detected’: Usually it’s a driver problem, it should be very easy to fix. If your second monitor is not detected on Windows 10, even though you know the monitor itself works fine and the video output it’s connected to is fine, don’t give up hope. Your second monitor is not detected? Follow this guide to solve it right now!

Install viewsonic monitor drivers