I just bought Sony X800D TV and it comes with 2 hdmi ports that do 4k at 60Hz and 1 HDMI port that does 4k at 30hz. I have 2015 Macbook Pro 15" with iris pro IGP. As you guys probably know, this macbook support just HDMI 1.4 and it only does 4k at 30hz. I want to output 4k at 60hz and my TV only has HDMI, so I cannot use display port or thunderbolt from my mac. I'm wondering if I could use mini displayport to HDMI adapter to output 4k 60hz. I tried one adapter from Wal-mart with 4k label, but my mac doesn't even recognize the TV is 4k capable anymore.
P.S : I'm not sure if this is the right forum to ask this question. If it is not, let me know.