tbsteel I don’t know your troubles, but I saw that you have a BenQ monitor. If you’re trying to get 10 bpc to work, you might find another thread in this community helpful. Try going to the bottom of this thread How do you get the WX 5100 to use 10-bit? In short, using an older Enterprise driver, 18.Q1 (Feb 2018), I was able to get 10 bpc, 4K@60Hz. One other user, m0reilly, tipped me off to this. Although my monitor is BenQ SW320, it may work for you as well. But there may be other issues with the driver for you since it is old. See the bottom of the linked thread.
I have the same BenQ EW3270U Monitor that is connected through a DP 1.4 Cable but i am using a non Pro graphicscard the Vega 64 so i cant use a Pro driver (at least not that i am aware of).
I changed to 60Hz in the advanced Adapter Setting, still no luck. Are there any news regarding this for Consumer Cards?
I really don't know what information there is regarding the non-Pro graphics cards. My GPU and driver are the Pro and Enterprise versions, so I can't say, but I would bet there is some information in these forums that will help. The two versions of drivers seem to share parallel development, so I wouldn't give up hope. Just search for your version of driver and GPU and you'll likely find helpful information.