Several Windows users have repeatedly been complaining that they are unable to use the third monitor with their PC. As per reports, Gaming enthusiasts or users who normally use a setup with three monitors said that their PC wasn’t able to detect the third monitor. Now, as per our research, the problem is common with such types of displays and not only with Windows 10, but it can arise even if the frequency is higher especially with older monitor models.
All Fixes for “Third Monitor Not Detected Issue”

Today, in this article, we have compiled a list of multiple fixes that will help you in resolving the “Third Monitor Not Detected” issue. The fixes will also help if you are experiencing issues like- 3rd Monitor is Detected but not Displaying or Windows 10 Triple Monitor not Working. For more elaborated discussion, make sure you go through the entire solution guide below. Have a look:
FIX 1: Reconnect all the Monitors one by one:
One of the easiest solutions to help you resolve the “Third Monitor Not Detected” issue is to reconnect all three monitors one by one. We recommend this because, at times, various technical problems can occur when you use more than one DVI to Display Ports.

