Auto Brightness?

Nuggets

New Member
Bronze
Jul 7, 2007
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#1
How is this supposed to work? Does the phone detect the lighting conditions? What should the brightness slider be set to when auto brightness is enabled? Seems silly that the slider is even available with this setting enabled. Maybe I'm not understanding how it works.....
 

pb30

New Member
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Jul 1, 2007
81
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Minnesota
#2
The phone does detect the lighting conditions and adjusts the brightness. It looks like the slider changes the range of how bright you want it to be. This way it still adjusts, but will be less bright if you want to save battery
 

wjp09

Zealot
Gold
Feb 25, 2007
2,559
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NJ
#3
I think your brightness you select is MAXIMUM Brightness and it just lower from there in certain conditiions
 

joe

New Member
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May 5, 2007
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#5
I actually haven't been too impressed with this feature. I don't ever notice it changing brightness.
I believe it only adjusts when it wakes from sleep. Since we walk around and find ourselves moving in and out of different lighting situations I would prefer that it continually adjusts.
 

adseguy

New Member
Bronze
Jul 1, 2007
401
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#9
I definatley notice it and it's great when working from indoors to outdoors without changing anything.

1.) Get into a very dark room (say a closet) and wake up the phone. Slide the unlock (by then you might see it change).
2.) Sleep the phone
3.) Move outdoors or to a well lite room
4.) unlock the phone (take notice at the brightness as this will change in the next step
5.) Slide the unlock, you will notice the change.

I have noticed it doesn't exactly poll at intervals it just auto adjusts when you change applications. I was at a meeting and the lights were off for a presentation then the lights came back on and about 5 seconds later the phone brightned up to my happy surprise.
 

BoxKrait

New Member
Bronze
May 16, 2007
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#10
Can't you just put your finger over the light sensor and watch it change?
Or am I just slow this morning and that would trigger the proxy thing?
 

adseguy

New Member
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Jul 1, 2007
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#11
Can't you just put your finger over the light sensor and watch it change?
Or am I just slow this morning and that would trigger the proxy thing?
proximity sensor only works when in a call. I mean you wouldn't put the phone close to your face anyother time....unless you type with your nose:p.

i've tried putting my finger over it, but it wasn't setting of the auto-brigtness......light fluctuations will though:cool:.
 

mjeagent

New Member
Bronze
Jun 28, 2007
418
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Northern Virginia
#12
I definatley notice it and it's great when working from indoors to outdoors without changing anything.

1.) Get into a very dark room (say a closet) and wake up the phone. Slide the unlock (by then you might see it change).
2.) Sleep the phone
3.) Move outdoors or to a well lite room
4.) unlock the phone (take notice at the brightness as this will change in the next step
5.) Slide the unlock, you will notice the change.

I have noticed it doesn't exactly poll at intervals it just auto adjusts when you change applications. I was at a meeting and the lights were off for a presentation then the lights came back on and about 5 seconds later the phone brightned up to my happy surprise.

Some may wonder why I am alone in a closet with my iPhone. I mean they know I like it a lot, but do they know I like it that much!
 

joe

New Member
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May 5, 2007
1,113
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#13
Can't you just put your finger over the light sensor and watch it change?
Or am I just slow this morning and that would trigger the proxy thing?
I'm pretty sure the sensor does not adjust the brightness except when waking from sleep (or turning on?).
 

rebelace

New Member
Bronze
May 30, 2007
193
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Beaumont,Texas
www.thechadburge.com
#14
This feature seems to not work. When I first got my phone it worked fine I could obviously notice it changing then I went into the menu and turned it off and back on and messed with the slider and haven't noticed a change since. So I think I broke it :(
 

Zman-iPhone

New Member
Bronze
Jul 26, 2007
83
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#15
ok i cant tell if its working.

ive searched through the forums and nothing.

i have auto-brightness on. about 40%.

i will unlock it in my room which is dark. then ill turn my lamp on and it gets brighter. then i turn it off, and nothing... don't you think that it should go beck to what it was before?

thanks to all

zman
 

adseguy

New Member
Bronze
Jul 1, 2007
401
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#16
The iPhone probably doesn't poll the sensor that often. Try moving around in applications. I've done it and it works.
 
Aug 8, 2007
14
0
0
#17
Thanks for bringing this up Zman. I've noticed the exact same thing. I don't think it's a polling issue because I've waiting several minutes. It just doesn't auto adjust from light to dark...only dark to light.

Anyone else try this?
 

Tinman

Evangelist
Gold
Jul 16, 2007
4,334
183
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Aridzona
#18
I have heard that it only polls the light sensor when waking up from sleep. While I haven't verified this 100%, it does "seem" to be the case with my iPhone.


--
Mike
 

Tinman

Evangelist
Gold
Jul 16, 2007
4,334
183
63
Aridzona
#20
Seems that it only polls after the screen is unlocked... try that.

L
That's what I meant by waking from sleep. I don't know how to to get to the unlock screen without the iPhone being asleep.

But yes, the actual polling does seem to take place after swiping-to-unlock is complete.


--
Mike