20-03-2021 02:33 AM in
there is a simple workaround
s21 ultra screen adaptive refresh wont work unless you increase the brightness
above maybe 20% if you dont like the higher brightness specially in night
just go to accessibility and toggle extra dim and move the slider to max
and thats it the phone brightness will be above 20% and that will activate the adaptive refresh rate and the extra dim feature will make it look like you didnt raise the brightness
Adaptive refresh rate does not work under a certain amount of ambient lux. Anandtech covered this last year and the year before regarding the note 20 ultra screen too.