Yeah I saw a lot on line out that issue. The best thread I saw on this is this one:
https://www.drivereasy.com/knowledge/windows-10-not-detecting-hdmi-tv/

Several of the responses were positive!...

No problem with the Hijack! LOL! We're all in this together! I did solve my problem. After reading up on HDMI and going to Sanyo website for support, I found out my TV HDMI was HDMI DVI. There is...

I should be able to stream on my PC and show it on my TV with an HDMI cord....isn't that correct? In any case, my issue is the computer recognizing the TV using an HDMI cord. Any help will be...

I'm trying to stream video on my TV from my computer using an HDMI cord. Both have an HDMI port. The TV is the HDMI2 port. I've done everything suggested on the web to get his to work. I do have 2...