15.7 lock screen duration

[LannyC]

Since updating my iPad Pro to iPadOS 15.7, the lock screen no longer goes back to sleep shortly after pressing the power button or plugging/unplugging the charge cable. It stays on for at least 8 minutes, the longest I've bothered to experiment, unless unlocked with the Home button or put back to sleep with the power button. Not a functional issue, just a strange bug that makes me wonder what else might be broken.

 

[twerppoet]

Have you gone to Settings > Display & Brightness to see if your Auto-Lock settings have changed? Sometimes an update can default a setting(s).

 

[LannyC]

It's not that. It used to go black a minute or so after being poked, as long as I didn't unlock it.

 

[twerppoet]

Does it do the same thing whether it is plugged into power or on battery?

My lock screen goes black within a few seconds if I don't interact with it. I'm not in a good position to see what it does when plugged in.

 

[LannyC]

No difference. My iPhone, on iOS 15.7, blanks itself after 5 seconds if not unlocked. Both devices are set to auto-lock after 5 minutes.

 

[twerppoet]

You've already powered the device completely off and on again, yes? I'm grasping at straws here.

Note: I did eventually test my iPad while plugged in, and as you say it only takes a few seconds for the screen to go black again.

 

[twerppoet]

Assuming a restart is not the solution, the only thing I can think of is Settings > General > Transfer or Reset iPad > Reset > Reset All Settings. (Be careful what you chose from this menu. Don't carelessly tap the wrong item.)

This defaults many of the system settings and a few of Apple's first party apps. It does not erase anything or mess with your account. You do end up having to go back through settings and re-tweak things to the way you prefer them.

There have been a few times on the forum where this cleared invisible settings glitches that cropped up when updating, or just out of nowhere. Those problems were quite a while ago, but this is all I can think of for now.

 

[LannyC]

You've already powered the device completely off and on again, yes?

Oops. I'd forced a Home-Power restart, but not a power cycle. That worked!

Thanks, TP.

 

[twerppoet]

Oops. I'd forced a Home-Power restart, but not a power cycle. That worked!

Thanks, TP.

Glad you got it solved.