When I press the power button the screen is immediately turned off and locked. When I press the power button again the screen is turned on and the lockscreen is displayed. However, it is only displayed for about 5 seconds before the screen goes off again. I have to start interacting with it straight away to prevent the screen from turning off. I don't always want to unlock the screen, sometimes I just like to press the power button to have the screen turn on so I can work my way in the dark, as a flash light replacement. But that doesn't work if I have to keep pressing the power button on and off all the time.
Is it possible to change this time? I would like to have it set to at least 30 seconds, or have it stay on all the time until I press the power button again. Is this possible?
I'm not sure it's possible to have the screen stay on until you press the power button, but my old HTC had a longer display time when the lockscreen is shown.
I'm on Galaxy S4 Plus (GT-I9506) with Android 4.2.2 (Jelly Bean). It's stock ROM and everything, brand new.
I tried to google this and it appears that the only time setting you can change for the lockscreen is the time it takes for the lockscreen to actually activate. Below is a screenshot of the "Lock screen" page on an Galaxy S3 with Jelly Bean.
(image source: Android Central)
There was this "Secured lock time" option. It said "the screen will be locked after 30 minutes of inactivity." This is on the Galaxy S3. Mine is a little bit different. Below is a screenshot of the lock screen page on mine.
This however does not change the display time of the actual screenlock... screen (sorry). It only defines when the screenlock will become active.