I have a Samsung ju6400 and an AMD R9 390. The adapter was working fine and I could do 4k at 60hz. All of a sudden this past week, it can only do 4k at 30hz. The option is completely gone now on the TV. I have all the correct settings that were working previously but this past week I have not gotten 60hz at all when I change it on the display properties. I rolled back to a previous driver as well on the AMD card but that was not the issue. I ended up buying a 2nd cable adapter, but its the same issue with the new one I bought. I have done the whole PC mode and Game mode on the TV settings, and it still does not show 60hz is available. Anyone have any thoughts?
DIsplay to HDMI Adapter. 60hz gone now on 4k!!
I did the custom display creation that was recommended in the pdf document and it works in that way... But I remember getting 4k 60hz with 10 bpc on the color aspect. If fact, I pushed it to 12 at one point. I mean, it works now, though some strange reason with Dark Souls 3(I only tested 4k on this game). The sound was completely messed up. I will have to try with other games later today.
