Nowadays HDMI 2.1 is very messy term, haha

But what i mean is after certain length of extension for HDMI 2.1, the feature will degrade.

Example in my case now for Xbox Series X and LG TV CX:
1) I use hdmi 2.1 "3 meter" combine with hdmi 2.1 "2 meter" extension = no 4k120
2) I then change the "3 meter" to "1 meter" (meaning 1 meter + 2 meter extension) = i get 4k120

So case 1 (3+2), under xbox hdmi 4k = not all green tick
while case 2 (1+2), all green tick
[attachmentid=11515506]

But in my case 2, it still can detect and fully utilise HDMI 2.1 spec , all green ticks under xbox tv setting.

Technically speaking PS5 never actually fully utilize the 'FULL" capability of 48Gpbs HDMI 2.1 cause the console itself gimped at 32Gbps (4L8 for PS5, 40 Gbps 4L10 for Xbox Series X). So basically, the PS5 can only output YUV4:2:0/4:2:2 8, 10, 12 color bit depth or full chroma RGB 4:4:4 but at 8-bit only based on this chart below.

Console gamers can use this chart below:



new HDMI 2.2 spec is just out by the way.

https://www.hdmi.org/spec/hdmi2

As mentioned it is just one of the USB 2.0 port has slower speed than the other side by side one.

So it is quite weird and that’s was the reason why I bought it up to Sony before 2 years warranty expired.

Even the technician cannot explain that so end up they just replace the mobo for me but after replacement still the same. So not tv specific prob.