IPhone :: How Does Auto-brightness Work

Jun 4, 2012

On my iPhone 4s i have turned the auto brightness feature on but it does not seem to work so i wanted to know how to make it work. when i have my brightness on 100% it does not work and then i tried puting it on 50% but it still does not change automatically like it should.

Info:
iPhone 4S, iOS 5.1.1

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IPhone :: Auto-brightness Actually Work?

Mar 24, 2012

When I bought my first iPhone (4) I never knew the auto brightness actually works straight away when you walk from a bright area to a darker one, or vice versa. I had an issue with the home button and later my Phone provider swapped a new one for me. This replacement iPhone 4's auto Brightness actually dimmed in lower light areas noticably and in real time. It was really handy and the way it should work.

I recently upgraded to iPhone 4S, and noticed that the auto brightness doesnt change. I checked with my wife's iPhone 4S too and its the same problem. So, I want to know, does it actually change like the miraculous replacement iPhone 4 I received or is auto brightness a "meh" function that I shouldn't expect it to change. The reason I am asking is because I find in darker rooms, the iPhone is way too bright and I have to keep changing the brightness manually.

Everytime I do this I always see the Auto Brightness funtion on and its starting to bug me that it doesn't work like my old iPhone 4 did. Can someone explain if Auto brightness actually work?

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Jul 28, 2015

Iam thinking of using auto brightness because of the dynamic lighting I experience during the day.

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Sep 13, 2015

When I set the phone to auto brightness it gets dimmer then the manual value that I set, but even when auto brightness is on I can still move the brightness slider and it affects the screen brightness despite it being in auto brightness mode.

I would like to know by how much percent does the screen get dimmer in auto brightness mode compared to what's set manually via the brightness slider?

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Sep 28, 2015

I'm running stock 5.1.1, and even though my auto brightness is off my phone occasionally dims my display when it's on full brightness. It's not running particularly hot (37 degrees C according to my battery widget) so I don't know what's causing it to dim.

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Feb 27, 2015

My xperia z2 display flickering slightly in low brightness when auto brighness is off.........why is this happening is this normal??

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Apr 25, 2015

My S6 keeps randomly changing brightness even though auto brightness is off. And so I found this option via search within settings, which may very well be exactly what I was looking for but couldn't seem find it in the settings menu in developer option(which has already been enabled).....

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Dec 2, 2014

How can we tell if the auto-brigtness is functioning properly?

Info:
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Aug 18, 2010

On my 32G iphone 4, the auto brightness option gives a very dim screen in a dark room. Tried to search a little, seems many users reported the same behavior. I wonder if this is the same to every iphone 4 out there. This is very annoying, making the phone almost unusable in dark environment.

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My S6 keeps randomly changing brightness even though auto brightness is off. And so I found this option via search within settings, which may very well be exactly what I was looking for but couldn't seem find it in the settings menu in developer option.

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Jun 7, 2012

I have been reading a lot about the Neo V and I am thinking about buying one but I have just found out something really disturbing: you cannot disable the light sensor. The auto brightness feature works in a way that is undesirable to most people because the screen is too dim when in a dark room or viewing a dark video. (I looked at a friend's Xperia Play, which I think has this same "feature"... it was so dim in a darker room that it was really unpleasant to use - is it the same with Neo V?)

I have read that the only possible way to get around this is root your phone and install an application that disables the light sensor.

Of course I do not want to root the phone because I do not want to risk my warranty. But this auto brightness feature bothers me so much that I might just not buy the phone at all because it would be really annoying to have this nice phone, but with a dark, dim screen. I know, it saves battery life, but what's the point of having a nice display with a dim screen.

Has this changed at all with the ICS update?

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Aug 27, 2015

I have an strange, occasional problem with screen brightness. This problem has survived a factory reset and flash from Android 5.0.x to 5.1.x. I had also recently cleared the partition cache.

My screen sometimes goes very dim. I keep brightness on Auto. However, when this happens, cycling brightness to full makes no difference to the dim screen. Furthermore, the screen is dim only in some instances, such as: ChromeNova Launcher home screenSome other apps (can't recall which)

In other places, I see full brightness. For example, the notification shade is in full brightness (or whatever Auto sets it too).

The other day, I was outside in bright sunlight. My browser suddenly went dim, almost unreadable. I clicked home - dim. I pulled the notification shade down - full brightness. Pulled notifications back up - dim again. On restart, everything is fine again.

I use Screen Filter, but it was not on. In fact, turning it on darkens the screen even further.

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Nov 14, 2015

I have the TMobile S6 variant that I've had for about 6 months or so and noticed a few weeks back that that auto brightness does not work. it stays very very low even in very bright settings, I always have to go in a manually change th3 screen brightness. Is there a fix for this in an update or something because I seem to be the only one with an S6 having the issue although it has been reported for the Edge only.

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I have started getting a problem with the auto brightness switching itself off.

I keep switching it back on and then after a periods of time... Can't be specific but when I come out of an app or having been watching a video and go back to the homescreen it's really bright and the auto setting is off again.

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It seems my auto brightness is randomly turning off. Sometimes when the device is powered on and I'm using it and sometimes when its off. I don't know why my phone just decides to unchecked auto brightness but its annoying especially when I'm reading something and my phone just decides to blind me at random.

I'm on AT&T if that is important information....

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Jul 20, 2014

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I come from a Nexus 5 and I'm new to Samsung. It is NOT the edge model.

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Is it just me or there's something wrong the G4's auto brightness logic.

On my way home the train passes by some tunnels which is totally dark.

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Several times now, I've noticed that my screen brightness is changing by itself, making it either 0% or 100% bright. I'm on T-Mobile, if that makes a difference.

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I think I've noticed it a few times before, but tonight I've been able to replicate it on purpose. I have my brightness at close to it's dimmest setting, yet in direct sunlight the screen goes to max brightness; hold it in the shade and it goes back dim.

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Mar 1, 2012

I have already turned off the brightness auto adjustment, however I still notice the screen brightness change slightly when there is movement on screen, for example when you use finger touch and move on the screen. ( very noticeable when background is white).I tried to live with it however find it very annoying when you play on a white background game. Like the free game Penguin ( which is similar to Tiny Wing on iOS).

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