Go Back   MacRumors Forums > iPhone, iPod and iPad > iPhone

Reply
 
Thread Tools Search this Thread Display Modes
Old Jul 26, 2010, 09:53 PM   #1
WhySoSerious
macrumors 65816
 
WhySoSerious's Avatar
 
Join Date: Jun 2007
Location: Dallas, TX
Question How the hell does Auto-Brightness work?

Seriously, how do you get it to work? I have it turned on and the slider is all the way to the right (most bright). However, when I'm sitting in the living room where it's really dark at night and turn my phone on, it stays at 100% brightness.....it doesn't "auto" down.
__________________
...do you honestly think you're clever for replying to my post with "why so serious"?
WhySoSerious is online now   0 Reply With Quote
Old Jul 26, 2010, 09:55 PM   #2
xraydoc
macrumors Demi-God
 
xraydoc's Avatar
 
Join Date: Oct 2005
Location: 192.168.1.1
Quote:
Originally Posted by WhySoSerious View Post
Seriously, how do you get it to work? I have it turned on and the slider is all the way to the right (most bright). However, when I'm sitting in the living room where it's really dark at night and turn my phone on, it stays at 100% brightness.....it doesn't "auto" down.
Not sure it does at full brightness.
__________________
3.5GHz i7 27" iMac Surface Pro 3 i5 2.5GHz i5 Mac mini + 27" Thunderbolt display iPhone 6 Plus
xraydoc is offline   0 Reply With Quote
Old Jul 26, 2010, 09:57 PM   #3
chembox
macrumors 6502a
 
Join Date: Feb 2010
I believe it readjusts every time you lock and unlock the device.
chembox is offline   0 Reply With Quote
Old Jul 26, 2010, 10:00 PM   #4
draz
macrumors 6502a
 
Join Date: Jun 2010
It is not as automatic as say a MacBook... But it does do it eventually. I noticed it usually has to be a huge change in the light for the screen to adjust minor changes don't effect it like a MacBook.
draz is offline   0 Reply With Quote
Old Jul 26, 2010, 10:04 PM   #5
spblat
macrumors 6502a
 
spblat's Avatar
 
Join Date: Jun 2010
The range is not enough IMHO. It dims somewhat, but never as much as I would like. Last phone I had with an adequate auto-dimmer was a Sidekick. But on the other hand, my battery life with iPhone 4 has improved to the extent that I don't feel the same need to micromanage brightness.
__________________
spblat on twitter | spblat on youtube
spblat is offline   0 Reply With Quote
Old Jul 26, 2010, 10:08 PM   #6
_Matt
macrumors 6502
 
Join Date: Aug 2005
It really does suck. Especially when traveling through rooms in my house with different light atmospheres.

It looks the best on full brightness but I don't want my vision to get any worse.
__________________
| iPad (3rd Gen.) Wi-Fi 32 GB Black| iPhone 4 16 GB Black |
_Matt is offline   0 Reply With Quote
Old Jul 26, 2010, 10:44 PM   #7
Tom G.
macrumors 65816
 
Tom G.'s Avatar
 
Join Date: Jun 2009
Location: Champaign/Urbana Illinois
Mine works quite well.
__________________
Tom G.
Sent from my iPad Air.
15" retina screen MBP; iPhone 6 Gold 128G, iPad Air 2 Gold 128GB 4G LTE.
Tom G. is offline   0 Reply With Quote
Old Jul 26, 2010, 10:45 PM   #8
SDub90
macrumors 6502a
 
Join Date: Nov 2009
Location: Long Island
I notice it, but I keep mine set on the lower end of the scale.
SDub90 is offline   0 Reply With Quote
Old Jul 26, 2010, 10:49 PM   #9
wirelessmacuser
macrumors 68000
 
wirelessmacuser's Avatar
 
Join Date: Dec 2009
Location: Planet.Earth
Mine is working as it should.
wirelessmacuser is offline   0 Reply With Quote
Old Jul 26, 2010, 10:57 PM   #10
DoFoT9
macrumors P6
 
DoFoT9's Avatar
 
Join Date: Jun 2007
Location: Singapore
Send a message via AIM to DoFoT9 Send a message via MSN to DoFoT9 Send a message via Skype™ to DoFoT9
its usually a very gradual change, it wont happen instantly.
__________________
Official MacRumors IRC @ irc.krono.net #macrumors (Or http://kewlirc.net:9090/)
2012 2.5GHz Mac Mini Dual - 16GB RAM
Win8 PC - i5-3570k - 16GB RAM - SSD
DoFoT9 is offline   0 Reply With Quote
Old Jul 26, 2010, 10:58 PM   #11
WhySoSerious
Thread Starter
macrumors 65816
 
WhySoSerious's Avatar
 
Join Date: Jun 2007
Location: Dallas, TX
thx for the replies, but i'm not seeing ANY changes in the brightness scale. it's still at 100% in a dark room. this is the same things I saw on the 3G and 3Gs.
__________________
...do you honestly think you're clever for replying to my post with "why so serious"?
WhySoSerious is online now   1 Reply With Quote
Old Jul 26, 2010, 10:58 PM   #12
cirial
macrumors regular
 
Join Date: May 2010
Location: Pompano Beach, FL
The only thing that sucks is that after it brightens your display, it doesn't dim back down if u go in a dark room.
cirial is offline   0 Reply With Quote
Old Jul 26, 2010, 11:18 PM   #13
doboy
macrumors 65816
 
Join Date: Jul 2007
Quote:
Originally Posted by WhySoSerious;
thx for the replies, but i'm not seeing ANY changes in the brightness scale. it's still at 100% in a dark room. this is the same things I saw on the 3G and 3Gs.
It's not working for you because you set the slider all the way to the right, which is max brightness. You need to move it to about 1/3 to 1/2 way. I think that sets the minimum for the brightness. Try that.
doboy is offline   0 Reply With Quote
Old Jul 26, 2010, 11:38 PM   #14
maddux2005
macrumors 6502
 
Join Date: Jun 2010
100% brightness?!! Inside?!

Turn that down man! Lol your killing your eyes and more importantly draining the hell out the battery
maddux2005 is offline   0 Reply With Quote
Old Jul 26, 2010, 11:44 PM   #15
DoFoT9
macrumors P6
 
DoFoT9's Avatar
 
Join Date: Jun 2007
Location: Singapore
Send a message via AIM to DoFoT9 Send a message via MSN to DoFoT9 Send a message via Skype™ to DoFoT9
Quote:
Originally Posted by maddux2005 View Post
100% brightness?!! Inside?!

Turn that down man! Lol your killing your eyes and more importantly draining the hell out the battery
yeh i never put it at 100%. its normally <50%! the battery dies at those levels
__________________
Official MacRumors IRC @ irc.krono.net #macrumors (Or http://kewlirc.net:9090/)
2012 2.5GHz Mac Mini Dual - 16GB RAM
Win8 PC - i5-3570k - 16GB RAM - SSD
DoFoT9 is offline   0 Reply With Quote
Old Jul 26, 2010, 11:54 PM   #16
mcdj
macrumors 604
 
mcdj's Avatar
 
Join Date: Jul 2007
Location: NYC
I would kill for a shortcut to the brightness slider in the subdock.
mcdj is offline   3 Reply With Quote
Old Jul 27, 2010, 12:04 AM   #17
livingonvideo13
macrumors regular
 
Join Date: Jun 2009
Quote:
Originally Posted by mcdj View Post
I would kill for a shortcut to the brightness slider in the subdock.
Ditto. (Well maybe not kill but hurt somebody real bad)
livingonvideo13 is offline   1 Reply With Quote
Old Jul 27, 2010, 12:19 AM   #18
omgitscro
macrumors 6502
 
Join Date: Jul 2008
Auto-brightness changes take effect when one changes apps or when one enters the springboard.
__________________
Ph.D. student in Pennsylvania
omgitscro is offline   0 Reply With Quote
Old Jul 27, 2010, 12:23 AM   #19
sparrky
macrumors 6502a
 
sparrky's Avatar
 
Join Date: Oct 2008
Location: California
Quote:
Originally Posted by mcdj View Post
I would kill for a shortcut to the brightness slider in the subdock.
You would kill.... but would you jailbreak? SBSettings provides a nice shortcut to the brightness slider. I really wish this sorta stuff was built in, though.
sparrky is offline   0 Reply With Quote
Old Jul 27, 2010, 12:27 AM   #20
Eso
macrumors 68000
 
Eso's Avatar
 
Join Date: Aug 2008
Quote:
Originally Posted by WhySoSerious View Post
thx for the replies, but i'm not seeing ANY changes in the brightness scale. it's still at 100% in a dark room. this is the same things I saw on the 3G and 3Gs.
You do realize that the brightness slider in settings will not actually move, right? The screen still gets darker. On the iPhone 4, the screen can get brighter too (on all previous models, auto-brightness will only darken the screen or do nothing).
Eso is offline   0 Reply With Quote
Old Jul 27, 2010, 12:32 AM   #21
WhySoSerious
Thread Starter
macrumors 65816
 
WhySoSerious's Avatar
 
Join Date: Jun 2007
Location: Dallas, TX
Quote:
Originally Posted by maddux2005 View Post
100% brightness?!! Inside?!

Turn that down man! Lol your killing your eyes and more importantly draining the hell out the battery
do you not comprehend the original post?

I have the brightness set to 100% with auto-adjust set ON.

So, i assume that when i turn my phone on in a dark room, the auto-adjust will lower the brightness down to....say...50%; however, it won't. It stays at 100% by no choice of my own.

That's the problem, Mmm-kay pumpkin.
__________________
...do you honestly think you're clever for replying to my post with "why so serious"?
WhySoSerious is online now   -5 Reply With Quote
Old Jul 27, 2010, 12:37 AM   #22
_Matt
macrumors 6502
 
Join Date: Aug 2005
This might be the stupidest thing I've ever said, but is this how auto-brightness works?

In high light conditions (sunny day), the iPhone screen gets dimmer.

In low light conditions (dark room), the iPhone screen gets brighter.

So, unless I'm completely crazy, the software is not designed to dim the screen in a dark room. Ever. Even if it's set to full brightness.

When set at 50% the auto-brightness works best because it has the room to change the brightness based on lighting conditions.

Try sliding auto-brightness off and back on?

Sorry if this was stupid but that's all I got. I've just never seen my iPhone dim in a dark room or get brighter in a light room.
__________________
| iPad (3rd Gen.) Wi-Fi 32 GB Black| iPhone 4 16 GB Black |
_Matt is offline   0 Reply With Quote
Old Jul 27, 2010, 01:19 AM   #23
pablo7
macrumors 6502
 
Join Date: Nov 2008
Location: LOS ANGELES, CA.
Quote:
Originally Posted by _Matt View Post
This might be the stupidest thing I've ever said, but is this how auto-brightness works?

In high light conditions (sunny day), the iPhone screen gets dimmer.

In low light conditions (dark room), the iPhone screen gets brighter.

So, unless I'm completely crazy, the software is not designed to dim the screen in a dark room. Ever. Even if it's set to full brightness.

When set at 50% the auto-brightness works best because it has the room to change the brightness based on lighting conditions.

Try sliding auto-brightness off and back on?

Sorry if this was stupid but that's all I got. I've just never seen my iPhone dim in a dark room or get brighter in a light room.
Works opposite of what you described.....its dims in low light cause you can see it better and brightens in the sunlight or brightlight so its easier to see... try this with autobrightness set to on, at about 50% lock then unlock your phone in a semi dark room and then walk over to a lamp and watch it get brighter then see the difference as you go back to the darker part of the room it takes about 4-5 seconds for it to brighten up while your holding it under the light bulb of the lamp.

Last edited by pablo7; Jul 27, 2010 at 01:27 AM.
pablo7 is offline   1 Reply With Quote
Old Jul 27, 2010, 01:22 AM   #24
maddux2005
macrumors 6502
 
Join Date: Jun 2010
Quote:
Originally Posted by WhySoSerious View Post
do you not comprehend the original post?

I have the brightness set to 100% with auto-adjust set ON.

So, i assume that when i turn my phone on in a dark room, the auto-adjust will lower the brightness down to....say...50%; however, it won't. It stays at 100% by no choice of my own.

That's the problem, Mmm-kay pumpkin.
No reason to be rude. I was messing around (hence the emoticon) mmm k pumpkin

Still. 100% brightness isn't needed indoors. But it's your phone. Not mine. Just my 2 cents
maddux2005 is offline   0 Reply With Quote
Old Jul 27, 2010, 01:25 AM   #25
doboy
macrumors 65816
 
Join Date: Jul 2007
Quote:
Originally Posted by WhySoSerious;
do you not comprehend the original post?

I have the brightness set to 100% with auto-adjust set ON.

So, i assume that when i turn my phone on in a dark room, the auto-adjust will lower the brightness down to....say...50%; however, it won't. It stays at 100% by no choice of my own.

That's the problem, Mmm-kay pumpkin.
Read my post above. The slider is to set the minimum so by setting the slider at 100%, it'll stay close to max even when you are in the dark. Lower the slider to 1/3 to 1/2 and it should work fine. You mentioned you tried 3G and 3GS, did you own those models and you still don't know how to use auto-brightness?
doboy is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iPhone

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
iPhone: iPhone went into safe mode now auto brightness seems to not work shenan1982 Jailbreaks and iOS Hacks 14 Jul 12, 2013 09:25 PM
Auto Brightness does not work - ios 6.0 aka777 iPhone 8 Nov 12, 2012 11:01 PM
No auto brightness on the 5th gen, here's my work around for it WindowsFan iPod touch 4 Oct 26, 2012 08:24 PM
iPhone: Auto Brightness doesn't work fotomatt1 iOS 6 6 Oct 23, 2012 05:42 AM
Passbook app doesn't work with auto brightness deanfx4u iPhone 5 Oct 4, 2012 01:12 AM

Forum Jump

All times are GMT -5. The time now is 09:28 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC