If Laptop External Monitor is not working, detected, or displaying anything when connected, or Windows won't recognize second HDMI monitor, see this post.

If the third monitor is not detected by your Windows 11/10 computer, then one of these suggestions is sure to help you fix the issue.

Easy Fix For HDMI TV/Monitor Not Detected In Windows Harvey Hisona June 29, 2022 August 6, 2023 Windows Operating System supports usage of multiple monitors at once.