HDR fullscreen problems

G

gamerk2

Version: Windows 10 17134
GPU: NVIDIA 1080 Ti (Driver 397.31)

Display: LG OLED 55" B6P


Problem: Windows HDR implementation barely works properly. Here's a list of issues I've seen so far:


1: SDR applications that are not exclusive fullscreen start in HDR mode, distorting the colors. If an OS overlay [such as the volume overlay] come up, the display will go blank until the overlay dissapears.


2: SDR applications that are exclusive fullscreen go blank. From what I can see, my display is in SDR mode, so I'm guessing there's a mismatch between Windows trying to output HDR content and the display receiving it. [And no, the problem is on Windows end; the display can handle HDR just fine on other systems]


3: I've had a case where an SDR application, on exit, somehow resulted in the system HDR setting being disabled. I've also had another case where on exit the system is reporting its in HDR mode, but outputting SDR even on the desktop.


So in short: Windows is not managing HDR properly.

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