Hello jibran025 and welcome to Android Forums. If there is a setting to activate the phone's screen after a notification I'm unaware of it... sorry. I'm sure the thinking is that if it were to light the screen with ever notification that it would be a heavy battery drainer. Many users, depending on the notification, will ignore notifications until it is handy to address them. Grouping them and then addressing them in a bunch saves up time for the screen. You certainly wouldn't want the screen coming on while in your pocket... especially if it was a notification you weren't going to view right then. In any event, if there is a setting like you want, perhaps another user will bring it to our attention. Thanks for joining these forums and I hope you enjoy your time here.