RGB will default to 8bit and is not true HDR. Maybe your cable doesn't have enough bandwith.
Good theory, but that's not the issue, and never was. Aside from that, and getting "fake HDR" or whatever the 8-bit implementation ends up being, it seems like the console games with HDR always end up looking better, as far as HDR is concerned anyway. I don't know if that's just how they look, or if it's still just a Windows issue with the implementation right now. Even once HDMI 2.1 becomes more mainstream, it's still up to Windows, the GPUs and developers themselves to properly use it.
I can tell from the color banding immeditely.
RE7 was a banding nightmare for me, especially in specific scenes like at the very start when looking at the laptop, or any time you end up in a dark area that had a heavy light source illuminating from the side. No amount of settings changed that, but setting the TV to "PC mode" also had side effects on the older sets. The C8 I currently have seems to work correctly in that regard, but I haven't tried out any games on it yet. For movies however, I can't have it set to PC, or SDR content has
awful banding.
Thank god HDR is indistinguishable from SDR anyway. No point bothering with this scam shit.
This isn't remotely true, but I'll concede that some HDR content doesn't have an immediate "Wow factor" over the SDR counterpart.
John Wick, for all of its hype looked pretty similar in SDR (it looked great), similarly with
Infinity War. There were differences, but you had to look for them outside of very specific scenes. Games on the other hand are a night and day difference. When Horizon: Zero Dawn first released, it had one of the best implementations of HDR up until that point, and it was a pretty stark difference playing it for around ten hours and then shutting off HDR. Games vary too, but when it's done well (and not faked), it's not the same as SDR at all.
