Originally Posted by aaronwt
Do Not use 444 with a TCL set for HDR10 content. With HDR10 and 444 it is not shown properly on the TCL. DV is fine though since RGB is sent. I send 422, 420, or RGB for HDR10 from all my devices.
Rtings mentions in their review that 444 is only sent properly when in PC mode. And PC mode cannot be accessed manually. It will only switch to it automatically when connected to a PC.
So I want to make sure I understand Chroma when using the Apple TV 4k device.
-Is there an advantage of using 4:4:4 vs. 4:2:0? (Apple says increased sharpness)
-If I keep it is 444 mode and I get an HDR movie playing, what happens?
-When I tested 444 mode thru the ATV4k unit, it shows a good screen..does that mean its working ?
-If not, In order to start 444 mode, I have to do the following?:
From rtings: The TV supports most resolutions without issue. For use as a PC Monitor, PC mode must be enabled; either by the TV's auto-detection or by changing the input label to Computer. The TV must be in PC mode for chroma 4:4:4 to work.
-What are the disadvantages of running in 444 mode if I have to change the input to Computer?
-If I dont change to Computer and still tell the ATV4k to use 444, what happens? Does it down grade to 420 on the tv side when seeing a 444 signal?