While connected to pc android wont lock itself.question

My question is that when i turned on when i am connected my device wont lock, now i want to diable this but i cant find it back.
Does any1 know where the setting is that i can chage this?

Much thanks

My question is that when i turned on when i am connected my device wont lock, now i want to diable this but i cant find it back.
Does any1 know where the setting is that i can chage this?

Much thanks

Hi, do you activate AirMirror service when you find that the phone screen doesn't lock itself?