Answer to "How To Connect Apple LED Cinema Display with HDMI?"Hi Jason glad you found the cables for your setup. The Mini DisplayPort does converts to normal DisplayPort just fine. I also have a Mac Pro and love going between Mojave and Windows via EFI. But I have a dated old R9 280. I managed to get boot screen on it, but I was reading it’s much harder on newer AMD cards. When you say native with boot screen, did you manage to flash your Vega to get Apple EFI boot selector/boot screen? I’m interested to know how you did this? I want to upgrade my card and find a way to get boot screen again. Sorry if this question probably belongs in a different thread.
Answer to "How To Connect Apple LED Cinema Display with HDMI?"Hi there 2 years late. But this is now possible with powered active adapters that are coming down in price. However it's still risky testing, I had issues testing this setup on my Mac Pro with a PC r9 280x with the HDMI port but it sort of worked. However I had complete success getting my display working with my Xbox One X. Let me know if the link doesn't work for you, I made this post myself on Reddit after many years searching for solutions for PCs and laptops, I do also have an older adapter made by Kanex that was discontinued that can convert mini displayport to dual link DVI and needs to be USB powered but works perfectly! https://www.reddit.com/r/Xbox_One_X/comm...-android