maddygoinzen , via OnePlus 8 , Jun 16, 2021 : I own a OnePlus 8, and sometimes when I open my phone after a few minutes, the brightness goes all the way down on its own. The brightness slider shows the original brightness that I had set, and everytime I need to slide the brightness slider a bit to get the correct brightness. Is anyone else experiencing this? Is there any solution? Just letting everybody know that the adaptive brightness is already off, and I've even tried factory resetting the phone, still the problem remains.