I have had my s5 for a few weeks now and have come across several very annoying issues with the display. I have to manually turn off the screen using the power button as the screen timeout never kicks in.
- Screen Timeout:
- I have set the screen timeout to 15 seconds, and have turned off the the "Smart stay" option.
- The screen does not turn off after 15 seconds, and stays active indefinitely.
- Notifications:
- The screen turns on when a notification is received; to the lock screen.
- The lock screen stays active indefinitely.
- The only way the the screen turns off is to unlock the phone, clear the notification, and hit the power button.
- Charging:
- The screen turns on when the phone charges to 100% and never turns off.
- I have activated Developer options, and the "Stay awake" check box was not checked.
My power usage is through the roof and my screen accounts for 70% of it. I am at a loss as to what else to do and am about to return the phone.