OK my display settings go to max 2160p, only for external TV or display 2. For 1080p non-HDR monitors, the software player (or maybe MadVR, which I don't use) has to downscale video and apply a LUT to display colors correctly. My display settings in Windows are limited to 1080p maximum unless I switch the monitor (a Dell S2718HN/NX) to 4K HDR mode. No charge if no fix, I just don't know if it's a/the problem? I'm not sure how to answer your question. Does this setting affect transfer of video though, or only the pc's display itself? Dell will gladly take my $100 to find out. When the monitor is in one of the two 4K HDR modes supported by the software, the monitor can accept 2160p HDR10 input, downscale it to 1080p, and use its internal LUT to map colors correctly for HDR.

Could there be some Dell software for the display itself that controls HDR? My desktop PC's monitor is a Dell 1080p 8-bit monitor but has an HDMI port that can be switched from HDMI 1.4 to HDMI 2.0b using settings in the monitor's own software.

Reset audacity default settings