So, installed the Radeon Software Adrenalin 2020 / 19.12.2 drivers and thought everything was working fine at first.
On desktop, Windows has HDR enabled, monitor is in DisplayPort HDR -mode, HDR videos work etc.
However, as soon as I started first game the problems became apparent.
Overwatch, which is SDR game, for whatever reason runs the monitor in DisplayPort HDR mode in fullscreen mode, but it used to look just fine on earlier drivers (since the HDR got finally fixed in 19.10.1 or whenever it was). Now, it's all washed out and a bit darker.
Hellblade: Senua's Sacrifice, which is HDR game, was really, really dark. Toggling HDR off/on just made the screen freak out with overblown brightness (to the point almost everything burns through). The problem persists until a reboot.
Star Wars: Battlefront II, which is HDR game, wasn't dark, but instead it was overbright from the beginning, and again, problem persists until reboot.
I tried doing clean install with the new drivers, no help. Clean installing the previous set I used (19.10.2 I think) fixed things, but now I'm missing everything new in 2020.
Ryzen 7 3700X @ stock
16GB (2x8GB) DDR4-3600 CL16
ASUS Prime X570 Pro
Sapphire RX 5700 XT Pulse
Creative Sound Blaster Zx
750W Seasonic Focus+ Platinum
Windows 10 Pro x64, build 1909
Samsung C32HG70 (DisplayPort)
More or less the same on my rig.
Two ongoing errors, both in plain windows and in games, has forces me to downgrade my drivers to 19.12.1 which is the driver I have the least problem with.
1. Washed out colors and too dark when selecting HDR.
2. Overblown brightness close to burning out everything on screen.
This happens regardless of enabling/disabling HDR in windows.
Running monitor in Freesync 2 or Freesync still causes the same issues.
Affected games I have tried:
Ghost Recon Breakpoint
The Division 2
Halo Wars 2
Star Wars - Jedi Fallen Knight
Red Dead Redemption 2
Clean install did not help either, back to 19.12.1
Asus RX 5700 XT
Ryzen 7 3700X
Asus ROG Strix B450-F
Corsair Vengeance LPX DDR4 3200MHz 16GB
OCZ Fatality Power Supply 750W
Windows 10 Home build 1903
Samsung C49RG9X (DisplayPort original Samsung cable)
DITO! >>> Same issue with sapphire 5700 xt pulse and BenQ EX3203R
Ryzen 5 1600X
Gigabyte GA-AX370-Gaming K5
G.Skill Flare X 16GB, DDR4-2400, CL16-16-16-39 (F4-2400C16D-16GFX)
Super Flower Golden Green HX 750W
Win 10 Pro build 1903
Yeah, I'm having the same issue. I have since reverted back to the previous driver.
I have a 5700XT and the 27" Samsung CHG70 as well. Interesting multiple people have this monitor although I do see a BenQ mentioned above.
I will mention the readme says the HDR colors can be a problem if image sharpening is enabled. So, I disabled this feature. The Samsung monitor has a two Freesync modes, enhanced and standard. With image sharpening disabled, the enhanced freesync still has the problem. Leaving the game the colors are still washed out so bad you have to reboot (only way I know to resolve this that I'm aware of). If you put the monitor in standard freesync, the game looks slightly dark compared to normal. But, now when you go back to desktop everything looks normal so disabling image sharpening helped a bit.
Hope this helps.
Same issue with my XFX 5700XT and Samsung C27FG70
Too dark when i play Red dead redemption 2 and Ghost Recon Breakpoint
19.12.3 - Sadly it lacked a lot, HDR too dark ingame (Ghost Recon Breakpoint), burned out in windows.
On a positive note thou, HDR in Star Wars Jedi Fallen Knight seemed to work very well.
Going back to Win10-Radeon-Software-Adrenalin-2019-Edition-19.12.1-Dec2