Ecmslee wrote:As I said, and also linked in my post (here), I know PS5 is limited to 4:2:2 at 120Hz in 4k. But it should go up to 12 bits. Mine only goes to 8 bits which is too low. If you watch the video you linked he also mentions the same at the 6:00min mark (here)
That's expected. PS5 HDMI bandwidth is currently capped at 32Gbps. 4K 10-bit 4:4:4 120Hz requires 40.09 Gbps. See here:
Your monitor should be fine. It's just a limitation of the PS5. You can get the full capability out of your monitor if you can connect a reasonably modern PC to it.
Problem: The TV is reporting that image has 8bit instead of 10/12bit;
Cause: When the TV is getting a 4:2:2 HDR signal it is always reported as 8-bit even though it is receiving 12-bit. This is a technical limitation of HDMI. The only way to verify what bit-depth you are getting is to use test patterns. It's the same reason why Dolby Vision is reported as SDR. Because the TV doesn't actually "know" what it is getting.