Auto-Brightness Help Please!

[dan-K]

Hi All,

Apologies in advance if this is a silly question!

I currently have auto-brightness enabled. Sometimes I find I want the screen brighter than what auto-brightness sets it as, so I open control center and manually slide the brightness bar up to my desired brightness (with auto-brightness still enabled).

When does auto-brightness kick in again? Is it after a set time? Or do I have to go to setting and turn it off then turn it back on again?

Hope this makes sense!

Dan

 

[coolio93]

From my experience, it kicks back in after the lighting environment significantly changes

 

[now i see it]

When it's turned on, it's always on. An algorithm determines a set brightness based on the front ambient light sensor. You can then adjust the brightness to your desired level and it will auto-adjust from that setting.
When the phone is turned off, it defaults to its preset original setting again. (Not your setting last used).

 

[dan-K]

When it's turned on, it's always on. An algorithm determines a set brightness based on the front ambient light sensor. You can then adjust the brightness to your desired level and it will auto-adjust from that setting.
When the phone is turned off, it defaults to its preset original setting again. (Not your setting last used).

Perfect, that explains it! Thanks!

 

[Aceroller]

Seems like when I have auto brightness on and then I manually turn the control center toggle all the way up, it just stays there regardless of lighting environment. I have to go back to settings and toggle auto brightness off then back on to engage it again.

 

[Atomic Walrus]

Seems like when I have auto brightness on and then I manually turn the control center toggle all the way up, it just stays there regardless of lighting environment. I have to go back to settings and toggle auto brightness off then back on to engage it again.

What’s happening is that you’re basically calibrating the auto brightness; you’re telling it “at the current ambient light, I want this brightness.”

The auto-brightness algorithm then uses this in its calculations, so if you turned it up to 100% in a fairly dim environment it will no longer get darker than 100% unless the ambient light falls below that level.

I use this on all my devices to slightly increase the minimum brightness.

When you enable/disable auto brightness it will reset this “calibration.”