About those change back and forth fixes it. That tells me there's some bug in the drivers. As these are from the maker you have to get back to your PC's maker to ask for this to be fixed.
ALSO, driving 2 4K UHD monitors may have them tell you you need 2 video cards. Do you have that?
I'm new to this so bare with me. A few days ago I bought two Samsung 24 inch 4K monitor's (U24E950D). Prior to buying this I checked my graphics card was 4K capable and it was. Once I got the monitors installed them using display port connections and downloaded the appropriate drivers. However, after this is where the problems began. My monitor's are completely fine when loading up usual videos that aren't 4K. But if I were to watch in 4K at some point watching this just below the bottom half of the corresponding monitor would start flickering black. When this occurs I will commonly just go to adjust the screen resolution to something lower and then revert back to normal settings. After that everything is alright. Although I can manage this I would like to use what I paid for and be able to watch something in 4K without the monitors flickering. As someone that is quite tech savvy and is the type of person that other people come to when something goes wrong with their computer, i am stumped and not sure what to do. I'm open to any suggestions on what to do. Please answer, help is needed.

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