Lines Running Across my Monitor

[arihershkowitz]

Hi, I have a dual 4k setup and my second monitor has been causing some slight issues. I was hoping it could be narrowed down here.

 

The issue is that I occasionally see red lines running across the monitor. They're thin and disappear quickly.

 

Here are some facts:

 - The monitor is rated for 4k at 60 fps

 - It has display port, but my only display port on the GPU is used by my primary monitor

 - It is rated for 4k at 60 fps on HDMI as well as display port

 - It does not happen when I move from 60 to 30 fps in Windows settings

 - I'm using a GTX 1060 that has never caused any issues, so I doubt that the GPU is to blame

 - I'm not using one of those fancy, expensive HDMI cables, but still from a good brand

 - All other components in my PC are top of the line, so I doubt the problem is there

 

Has anyone here had this problem before? What could possibly be the cause of it? Troubleshooting ideas? 

[Cereal5]

What kind of 1060 only has one displayport output... Recheck to make sure both the monitor and GPU support HDMI 2.0. HDMI 1.4 only supports 4k 30Hz, and it's possible that one side of the connection is 1.4 while the other is 2.0.

[arihershkowitz]

Both sides are HDMI 2.0