@j82k
Thanks, that very helpfull, would you please install the latest test
build along with nvidia 418.81 drivers and take measurements with those settings:
tone map HDR using pixel shaders
output video in HDR format = enabled
target / real display peak nits = 800
apply dynamic clipping = enabled
apply target nits selection = disabled
LG dynamic tone mapping = off
Because it seems ok for me and almost matchs correct playback using my tv embedded media player.
Btw, did you take the previous measurements with your tv's dynamic tone mapping on or off?