Can anyone help me understand the EDID from my display (TV monitor)?

[ToastyX]

(11-28-2021 06:55 PM)discord Wrote:  Regarding HDMI 2.0. I thought that supported extra bandwidth beyond 10Gb / s so 4:2:2 support was possible. I was under the impression that 4:2:0 used under 10Gb / s but I'm just exposing my ignorance.

Technically YCbCr 4:2:0 was not officially supported until HDMI 2.0, but 3840x2160 @ 60 Hz can fit within HDMI 1.4 bandwidth with YCbCr 4:2:0, which is what the TV defines, but macOS does not seem to support that with your laptop because it's being ignored.

(11-28-2021 10:47 PM)discord Wrote:  Right now I presume what is happening is that MAC OS is overlaying the EDID information. We also see that the EDID information does not contain the exact model number. I might try my own overlay because the product documentation states the device ports are HDMI 2.0

MacOS would not change the EDID in that way. This is a problem with the TV. The TV is not reporting HDMI 2.0, and it's only reporting 3840x2160 @ 60 Hz with YCbCr 4:2:0.

That leaves only four possibilities:

1. Some setting needs to be changed in the TV to enable HDMI 2.0.
2. Only some of the ports actually support HDMI 2.0 despite the labeling.
3. The TV supports HDMI 2.0, but is not reporting it correctly.
4. The TV doesn't actually support HDMI 2.0.