don't get notification sounds when my phone is idleing for a few minutes

[bitdown]

android 4.2.2 - I don't get notification sounds when my phone is 'dark' for a few minutes. When I use it again the notification sounds work.

SMS notification sounds always works.

This makes my phone useless.

Anybody an idea

 

[B. Diddy]

It'd help to know which phone. Check to see if you have any power saving options on.