Auto brightness or no? - T-Mobile Samsung Galaxy S II SGH-T989

Who here chooses automatic brightness vs the controlled brightness....and does the auto effect the battery a lot?
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I just switched from controlled to auto, and I love it. Battery goes up a ton!!
Sent from my AT&T Galaxy S III using xda app-developers app

It's personal preference, I always use manual brightness control with my phone for several reasons:
- automatic brightness does not always adjust to the correct brightness, especially when moving from outdoor to indoor.
- it's not that hard to adjust the brightness myself. The ROM I am using has a brightness slider in the notification drawer which is very convenient.
- I usually keep my brightness down and only need to turn up the brightness when there is a harsh light reflecting on my phone screen (such as the sun).
- lastly, not using automatic brightness will definitely help with battery life (but only if you keep the screen brightness down and depending how often you keep the screen on)
Using automatic brightness is useful, but for my usage I prefer to save that little bit of battery life if possible.

OK thanks for the feedback
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When I'm home, I set the brigthness to low, but when I'm out, say for example in school, i put it on auto
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I use Lux Autobrightness, you can set custom brightness levels for each environment. Much better than the default autobrightness for android.
https://play.google.com/store/apps/details?id=com.vito.lux.free

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Auto brightness is a major problem with this phone

Been playing with my new phone and love it but man is the auto brightness a piece of crap. It sets the backlight so low you get weird banding on solid colors and off whites. Just turn brightness to 30% or so and boom its a whole different screen, colors pop and I don't notice any banding. Whites are great too.
They need to fix this fast since it comes with auto brightness on and its going to give people a bad impression.
Sent from my Galaxy Nexus using xda premium
That's the first thing I did.
auto-brightness is always a little too aggressive for my liking..
It was a problem with the Nexus S as well. Drove me nuts.
Seems AOSP roms are very aggressive with dimming.
mobilehavoc said:
Been playing with my new phone and love it but man is the auto brightness a piece of crap. It sets the backlight so low you get weird banding on solid colors and off whites. Just turn brightness to 30% or so and boom its a whole different screen, colors pop and I don't notice any banding. Whites are great too.
They need to fix this fast since it comes with auto brightness on and its going to give people a bad impression.
Sent from my Galaxy Nexus using xda premium
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known issue. Manufacturers tend to be really aggressive with this so you can get better battery life (yea I know.. pointless right?)
Just wait for custom ROMs. Or go download paulobrien's tweak for the automatic brightness settings. (of course, as others have said, you can just turn it off)
auto brightness has always sucked on Android, iOS has a customizable auto brightness that adjust to the level you put it on initially, where as on Android there's no option to adjust the default brightness when auto brightness is enabled.
rashad1 said:
auto brightness has always sucked on Android, iOS has a customizable auto brightness that adjust to the level you put it on initially, where as on Android there's no option to adjust the default brightness when auto brightness is enabled.
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Not just iOS, even my 3 year old Nokia allows you to adjust the level of auto brightness. Wish this is native to Android. I found my Nexus One too dim on auto brightness too.
Edit (deleted): redundant post about paulobriens fix
The auto-brightness doesn't just seem too low to me but also buggy. Most of the time it's really dim, but occasionally it will suddenly shoot up to a decent level
Has anyone tried this app? https://market.android.com/details?id=com.nnevod.loggraph&feature=search_result
I find it too bright.. the display is perfectly usable on minimum brightness in a normally lit room bit it keeps winding the brightness up, draining the battery. It seems stuck on about 50%.
My Nexus S did the same thing.. Drove me nuts. I had to switch it off and force it to minimum half the time.
Hopefully the ability to tweak the levels in detail will be ported over from CM7 later. For now, you can use PaulOBrien's kernel where he adjusted it.
TonyHoyle said:
I find it too bright.. the display is perfectly usable on minimum brightness in a normally lit room bit it keeps winding the brightness up, draining the battery. It seems stuck on about 50%.
My Nexus S did the same thing.. Drove me nuts. I had to switch it off and force it to minimum half the time.
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Same here, with my Nexus S, too bright.
This is one of the first things I do when flashing a rom on my incredible. They usually have to ramp down the brightness very quickly, probably for battery life. Cm has the tool hopefully it will be loaded soon.
Sent from my ADR6300 using XDA App
It would be nice if google added an option to set the max and min brightness used during auto. You could just raise floor a little.
Sent from my Nexus S using Tapatalk
Problem I've realized is on SAMOLED devices the screen is an absolute battery killer so there's no wonder they are aggressively keeping it dim. I bet if you ran this phone at 100% brightness just sitting idle it'd last like 10 mins

[Q] What are your automatic back light and light sensor settings on CM9 nightly?

I know that this topic has been scraped upon in piecemeal here and there, so I was hoping to get some tried, tested and true settings, as well as some additional detail as to what some of the settings actually mean/impact.
What does enabling the light sensor filter do?
What impact does the window length and reset threshold have?
If I'm a user who typically doesn't mind having his screen set to minimum/near minimum brightness, but only really need automatic brightness to kick in when using my phone outdoors, what sensitivity and brightness settings can one suggest?
Sent from my Galaxy Nexus using XDA

[Q] Decrease Minimum Brightness?

Is it possible to decrease the backlight of the phone even further than the minimum (for using in bed)? I tried modifying the min brightness setting in build.prop and it makes the brightness slider go further down, but it doesn't actually get any more dim. Is there any way to set this other than using a "screen filter"-type app. Thanks!
Yaab from the market, try it out
Sent from my Nexus 7 using xda premium
Richardsonke said:
Is it possible to decrease the backlight of the phone even further than the minimum (for using in bed)? I tried modifying the min brightness setting in build.prop and it makes the brightness slider go further down, but it doesn't actually get any more dim. Is there any way to set this other than using a "screen filter"-type app. Thanks!
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use and app called screen filter. it places a transparent layer over the screen and dims it further. it works better on amoled than on led lit screens since amoleds don't use a backlight. with led backlights it doesn't dim it, just darkens the images (backlight level remains the same).
I can't remember why I settled on Display Filter instead of Screen Filter. But there's another option for you.

Auto Brightness = Low

Has anyone noticed stock auto brightness is equal to the LOW setting? The only thing it does, whether it's a dark room or bright room is flip the brightness to LOW.
a_ok2me said:
Has anyone noticed stock auto brightness is equal to low?
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no, i think auto brightness is too bright for me in most of the time? did your case block the sensor?
vista1984 said:
no, i think auto brightness is too bright for me in most of the time? did your case block the sensor?
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I don't have a case yet.
I agree that auto-brightness is too low. I manually set the brightness.
I agree the auto brightness is pretty low. However I like it, and it saves battery.
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The auto brightness is to high for me too. In low light conditions if I turn off the auto setting I can force the screen lower.
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I notice when the screen dims especially on auto dim that the screen flickers or strobes like the tail lights on cadillacs, I cant read any thing easily. The best way to see it is to quickly scan from the top of the screen to the bottom or vise versa in a dimly lit room, you will see a stepped image.
That's why I haven't used stock auto-brightness since my last HTC phone. I've used third party apps to control my brightness, since I had the original Note. Lux is my favorite. So much control over the brightness settings. You can control the lowest brightness setting the phone will hit in addition to numerous other variables. Works really well for me.
Mine works flawlessly. It usually is set at the lowest setting until needed to be boosted.
This gorgeous screen still suffers from being too damn bright in the dark! Needs a filter on it so your retinas don't burn in the dark.
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I had to use lux auto brightness to lower mine it was very bright. You might want to use it to increase yours if it's low .

Are there any hacks to change the rules for auto brightness?

My tablet when on auto brightness becomes very dark in unlit rooms and I can barely see it videos or detail.
Sent from my GT-N5110 using Tapatalk
Mod to adjust auto brightness
6Flip9 said:
My tablet when on auto brightness becomes very dark in unlit rooms and I can barely see it videos or detail.
Sent from my GT-N5110 using Tapatalk
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I am not sure if this works with stock roms, but if you install PhilZ touch recovery from the thread... http://forum.xda-developers.com/showthread.php?t=2367151
You have options in the advanced menu to change the response time for auto brightness. The default is 1 minute, you will need to tap about 4 times to get it down to 0, as it counts up to 5.
Which sped up the delay from going from one extreme to the other in ambient lighting.
If you install his custom roms you also get options to adjust the brightness intensity in 5 steps while auto brightness is on. I found this out after some time messing with my settings.
6Flip9 said:
My tablet when on auto brightness becomes very dark in unlit rooms and I can barely see it videos or detail.
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Lux Auto Brightness - perfect app for brightness tuning - you can set you own profile - matching desired screen brightness to sensor reading, and the process is very easy.
Short info, taken from app description:
Lux isn't your ordinary brightness app. It intelligently adjusts the brightness of your display based on the environment you're in. If, for example, you step into a dimly lit room, Lux will automatically lower the brightness of your display to make it not only comfortable to read, but to also preserve battery power.
Lux provides the option to automatically adjust the backlight at fixed intervals (periodic mode), when a change in environment is detected (dynamic mode), or when the phone wakes from sleep. It's also possible to adjust the backlight manually. Simply disable automatic mode and you can use it like a traditional brightness tool!
Perhaps the best thing about Lux is that you can teach it how to behave. If the backlight is too bright or dim for your liking, simply open the provided Dashboard, adjust the brightness slider to the level you desire, then hold the link button. Lux will use this new 'link' as a reference in future.
lux and velis both work. i paid for both, but i prefer lux.

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