There's not much to talk about, but I know I'm not alone!
HDR bad, gray, not applicable on Sapphire Nitro + 5700XT
Now new drivers - but of course the problem since buying the card.
Monitor: SAMSUNG LC27HG70QQUXEN
Latest Firmware: m-HG727CCAA-1020.0
DisplayPort, FreeSync, 2560x1440, 144Hz (120-60 same)
HDR still totally unusable, gray, dark, or totally inoperable:
Resident Evil 3 Demo
Assetto Corsa Competizione
Far Cry 5
Previously, it worked great with the Saphire RX580 Nitro + and the Sapphire Vega56 Pulse on the same monitor
I deleted the disks and installed new Windows 10. I downloaded the updates, downloaded the latest drivers AMD (Chipset of course known problem "install still 0% but will install" and the latest graphics card drivers 20.3.1).
I downloaded a whole new Battlefield V game to try ... The result is ... still the same. Oh no!!!
But the knowledge - the problem is in DX12 !!! (BF5)
Somewhere here I wrote that "HDR videos on YouTube are perfect in HDR" so I'm sorry, today my friend warned me that the video is as bad as the game I compared it ... result: