So I got a Samsung KU6300 for my office. I have this annoying issue when in UHD mode. I have to turn on UHD mode in the TV as it's the only way I can do 4:4:4 chroma @ 60hz from my GTX1070. I have a monoprice 18gig HDMI cable but randomly the screen will flicker on and off like it loses video signal for half a second. If I turn off UHD mode and set my card to 4:2:2 chroma @ 30Hz it's fine.
Is it the cable?
Is it the cable?