Screen automatically dims on Inspiron 7368
I have an Inspiron 13 7368 that I bought a couple years ago. Recently, after a bunch of updates (including Windows updates, BIOS update, and driver updates), the screen started to dim after a seemingly random amount of time. I normally keep the brightness at 30, but when the screen dims, it's so dark that even at 100 brightness, it's still too dark.
I've tried every setting I can find, including BIOS (1.17.0) video settings. The only thing that seems to help is rebooting, and that only temporarily resets the brightness until the screen randomly dims again.