It was all the rage towards getting 4K 120 Hz VRR on Linux before AMD came along to contribute proper HDMI 2.1 support to the kernel. There is also mention in that thread of a CableMatters adapter that could be flashed with an alternate firmware but it wasn't as stable.
https://www.reddit.com/r/linux_gaming/comments/1pkdfcm/ugree...
It was all the rage towards getting 4K 120 Hz VRR on Linux before AMD came along to contribute proper HDMI 2.1 support to the kernel. There is also mention in that thread of a CableMatters adapter that could be flashed with an alternate firmware but it wasn't as stable.