I am using a preinstalled eOS on a Fairphone 3.
Since at least two updates ago the adaptive brightness feature is acting strange (maybe the problem has already been the from the very beginning and I just didn’t notice it before).
Sometimes when I am in a closed room without changing lighting conditions, the brightness of my phone is automatically changing every 6 seconds or so. Sometimes it dims to complete minimum, becoming too dark to use. After I adjust the brightness to my liking, it becomes even brighter some seconds later, becoming too bright (and draining my battery). Like it was at 25%, dimmed down to 0%, I set it to 25% again, suddenly it chances to 50%.
I’ve also experienced this at night in complete darkness while watching videos.
I need to further experiment to see when this is happening.
Maybe for different brightness levels it remembers my preferences and a slight chance in lighting results in a previously set state?