https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #6 from Dillon Dixon dillondixon@gmail.com --- I was reminded today that this TV is a bit strange in that 4K @ 60 Hz only works with 4:2:0 chroma, while the common expectation would perhaps be 4:4:4. Perhaps that can help lead to a solution?