Windows 10: pc doesnt detect second monitor tv

I have updated my drivers and done everything i could find on the internet to solve this problem. My pc is not detecting any kind of second monitor. When i go to device manager and press and expand display adapters it also doesnt show my second monitor. I have to say my second monitor im trying to use is a Tv but ive used it before as a second screen on my laptop. How do i fix this for my pc?

:)

 

second monitor not detected

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Second monitor (TV) is plugged in, detected by Windows, but no signal

Today I purchased a DP -> HDMI cable to hook up from my PC’s NVIDIA GEFORCE RTX 2060 Super to a Toshiba 50LF621U19 Amazon Fire TV. DP end in the graphics card, HDMI end on the side of the TV, and alas, no signal.

Windows still detects the TV and interprets that a second monitor is present - the mouse can move to the second unviewable screen and do what it wants, and be brought back to the main monitor. Display settings allow me to tweak all the settings for the TV
display but none of them make a signal appear.

Cable isn’t an issue - connects to other screens and displays them just fine. Computer shouldn’t be an issue either if it detects the TV and lets me configure the display that isn’t appearing. Computers have been able to connect to this TV just fine in the
past, but now this one is having issues.

I’ve snooped around quite a few threads on the internet and found little to help my case here. Any suggestions?

The main monitor is an ASUS VP249QGR, 1080p @ 144Hz by the way.

 

Windows 10 monitor is working, but windows doesn't detect second monitor

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