Tone mapping is used for HDR screens too, if the screen has got less nits than the video. Anyway, probably it's something else, you will have more luck asking D

Tone mapping is used for HDR screens too, if the screen has got less nits than the video. Anyway, probably it's something else, you will have more luck asking DaVinci Resolve developers. It could be they are ignoring the screen color profile, or they set something wrong, there are so many things that can go wrong.