GTX 1070 Dual Monitor Setup Not Working

Hailsoup · January 7, 2018

Hey guys, I'm new here.

I have an EVGA GeForce GTX 1070 SC 8GB graphics card. I have a 24" curved Samsung monitor, and a 50" Westinghouse Smart 4K TV that I'm trying to setup to use as dual monitors. The way my room is set up, the TV is adjacent to my desk, so I'm just trying to use the TV for video games and background movies, etc. The ports on my graphics card are 1 HDMI, 1 DVI-D, and 3 Display Ports. I have an HDMI cable going to my monitor, and a 4K HDMI cable from my TV to a Display Port adapter into my graphics card. For some reason, when I connect more than one cable into my graphics card, both screens go black and say "No signal". I was eventually able to get them both to work by using the NVIDIA Control Panel and using the display settings, but it didn't last long, and eventually whether I used my TV to watch actual television, or switch to my Xbox One S and then revert back to my PC, the same issue would happen, and in order to access my PC, I had to restart my machine manually.

I was wondering if I was somehow doing something wrong, or if I should just buy two Display Port to HDMI cables, and skip trying to use an adapter. The same thing happened when trying a DVI-D to HDMI adapter as well. The 4K enabled HDMI cable was the one that I received with my Xbox One S, the HDMI cable going to my monitor is a 15' cable I got on Amazon, and the Display Port to HDMI adapter is an INSTEN brand that I purchased from Walmart.com. I'm seriously puzzled as to why I'm having difficulty with this. I originally had an EVGA GeForce GTX 750Ti 2GB graphics card before I purchased the GTX 1070, and had absolutely no issue when trying to setup dual monitors; though I'm not using any of the same equipment. I apologize for all of this craziness, but if anyone could help me out I would be so grateful.

Thank you so much for your time.

P.S - I was recently given an AMD FX 8320 Black Edition CPU for Christmas from a couple of friends, and I didn't try this beforehand. I doubt that this addition has anything to do with the issue, but it never hurts to add the additional information. Thanks again.

[-edit- : I did update the drivers to no avail]

Edited January 7, 2018 by Hailsoup
Figured that was helpful towards diagnosis.