Solved Display brightness SP3. after Windows 10 upgrade

[Moonsurface]

Hmmm, that would be auto dimness... um, not a personal setting...

Definite case of user dimness...!!!

 

[sharpuser]

My teenaged kids used to have auto-dimming when I would ask them anything regarding school. Or friends. Or anything whatsoever.

 

[GreyFox7]

My teenaged kids used to have auto-dimming when I would ask them anything regarding school. Or friends. Or anything whatsoever.

Any question starting with Why/what/where/when/how/who did you... is guaranteed to generate the auto response: I don't know contracted (I-dough-no)