Brightness - Galaxy S II Q&A, Help & Troubleshooting

I am not sure if this is an isolated or common occurence but on several occasions that my brightness setting is changing by itself. Now, i have made absolute sure that my setting is not on automatic and nor have i activated battery saving mode. I can for sure say when exactly this happens but it may be during/after charging. Brightness is always lowered when this happens. Any advice would be appreciated. Thanks.
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The Brightness will only change in the Stock Web Browser if you had set it up different with system brightness, otherwise it should remain at a same level.
Regards.

This happens out with the stock browser.
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Could it be some app you installed lately or is it just this way from the first?

Im not sure...have not had my device long and pretty much installed my apps straight away so its difficult to determine how and when it all started. I did update recently.
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If the problem remains and you still haven't figured out if it's caused by an application or not then I'd advice you to do a Factory Reset, don't forget to Back Up data before.
Regards.

This was happening to me sometime ago! Than I noticed that my brightness gets lowered automatically when my phone overheats (while playing a game) and as a result it keeps the setting!
Don t worry about it! I advise you to lower your brightness to 50% before playing a game so that the phone does not overheat! It s one of the main factors that helped me eliminate overheating problems Hope I put your mind to rest

Thank you...that has certainly put my mind at ease now.
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1. Go to Settings -> Display -> Brightness -> Set it to manual.
2. Go to Settings -> Display -> Auto Adjust Screen Power -> Turn that to off.
Hope that helps.

Related

[Q] Screen in Camera app often very dark

Hi
my woman got the Galaxy S2 and has a problem with the camera app. The app shows a very dark screen like a maximum power saving mode. The rest of the apps are Ok. It can help then if I turn off the automatic brightness of the screen and the energy saving settings and turn them on again. But after a couple of days you have to the same again. So she is a bit p...ed about that. Does anybody of you have an idea how to get it stable bright?
BR MArtin
'my woman'...lol.
Anyway if you go into the camera app settings, scroll to the bottom and click 'reset'. Maybe your exposure settings or contrast etc were changed somehow. If that doesn't work...might be something up with the camera, or even some rubbish on the lens. You could just take it back and get a new one..
Never had problems with that, but all I can think of is that the illumination-sensor next to the front-face cam is dirty?
(less light coming tru makes everything darker?)
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With the settings in the picture everything is ok. The picture taken with the camera are ok. Also the Sensor is ok as it is working fine everywhere else. Any other ideas?
Br Martin
And yes it's my wifes phone I have a HTC Sensation
msichler said:
With the settings in the picture everything is ok. The picture taken with the camera are ok. Also the Sensor is ok as it is working fine everywhere else. Any other ideas?
Br Martin
And yes it's my wifes phone I have a HTC Sensation
Click to expand...
Click to collapse
Strange. Was it like that when she bought it? Just take it back and exchange it for a new one...
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666fff .. Why take it back to the store immediately?
Anyways... So I you have the app (camera) open.. Do the bars (with the icons in it) also seem dark or do they look (normal)bright?
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Yes everything is dark must be some problems with the energy settings or whatever
BR MArtin
Let me eliminate some causes:
- you've unchecked 'automatic screen brightness'?
(@settings)
- you've tried maximizing brightness manually?
- you've rebooted throughout the process? (giving the phone the chance to apply it's settings, sometimes all it needs is a reboot)
Let me know.
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Basically I tried evrything you said with unchacking and Checking the automatically settings and also the additional Energysaving settings it gets back fine for some days but then it changes back to the dark setting unless i check and uncheck the boxes again. So it seems not to be a stable sollution. So I search now for a sollution that the camera app always runs with maximal display brightness
I've tried about everything then.
I ran some tests on my own SGS2 but I can't emulate the dark bars.
Not even by holding my finger over the light-sensor.
But I guess it's like this and I DO NOT know a fix for it: seems like the phone is learning that you don't use the camera much. So if you do. It will automatically go into power saving mode since the priority for battery-use is for system instead of cam (due to low-use)
So the only last thing I could think of, is that you've enabled automatic power saving?
Uncheck it and take Juice Defender as your 'battery saver' fixed alot of issues with brightness going up and down for me(very annoying) never goes up and down for me anymore!.
I hope this is of good help.
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Ok will try that with Juice Defender.
BR MArtin
I have write me a task with Tasker witch put me max sensor light and auto rotation on when I open the cam. after closing it revers to the normal state! ,-)
I think I had the same problem as you.
In the camer app > Settings > Outdoor Visibility > ON
(it unfortunately resets everytime I exit the app)
Hope it helps
I tried with the Outdoor visibility but this seems to change the colors of the screen and not the brightness.
You are right, that does not work. I was at work when I tried this and it seemed to make the screen brighter, but outside in the sun light it does not make any difference. So I have the same problem as you lol
It's not his screen or image. It's the gray bars on the sides that he means.
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I tried the following thing and it's work :
1. Uncheck auto brightness
2. Make the brightness 100 %
3.Check again auto brightness.
On my phone when i made this the brightness on the camera is 100% and is not depending from auto brightness.
this totally worked! seems like within the camera app, there is no auto-adjusting of brightness and it always defaults to what the last brightness setting was set, regardless of auto-brightness status (checked/unchecked).

Auto brightness sucks on this phone, any fix?

Hey,
Had this phone for a week and the auto brightness is just terrible.
It is ALWAYS too dark, and sometime it would instantly go very bright and then down to very dark.
Whats going on?
I know I can keep it on manual, but I prefer auto as it saves battery and adjusts brightness accordingly.
Any fix for this?
maybe it'll come through siyah-kernel and siyah-tool (unpublished) on which gokhanmoral is working on.
No problem here.
Possible try a factory reset .
jje
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Does screen filter save battery?

Since the OTA I can't get my screen to dim enough. Does screen filter save battery.
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i use screendim and i noticed i do save battery.
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Yea I always wondered this but can anyone be certain for sure
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scuzzbag87 said:
Yea I always wondered this but can anyone be certain for sure
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Click to expand...
Click to collapse
why not try it yourself?
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Try this app called LUX. It allows you to customise brightness.
The paid version allows dim below "0%".
You can set it to something like -40% in a dark room, and normal brightness when you're outside. Basically, it's like auto brightness which you can customise. This is so you don't have to on/off a screen filter app.
And yes lower brightness saves battery.
Nikorasu said:
Try this app called LUX. It allows you to customise brightness.
The paid version allows dim below "0%".
You can set it to something like -40% in a dark room, and normal brightness when you're outside. Basically, it's like auto brightness which you can customise. This is so you don't have to on/off a screen filter app.
And yes lower brightness saves battery.
Click to expand...
Click to collapse
LUX is awesome!!! TIP OF THE YEAR!!!
Could we get a market link?
Can't seem to find it, just get light meters and cheap screen flashlights in search results.
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https://play.google.com/store/apps/details?id=com.vito.lux&hl=en (paid)
https://play.google.com/store/apps/details?id=com.vito.lux.free&hl=en (free)
Yep.
Check what is using your battery on your phone.
You will notice that screen mostly use up the power
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Nikorasu said:
Try this app called LUX. It allows you to customise brightness.
The paid version allows dim below "0%".
You can set it to something like -40% in a dark room, and normal brightness when you're outside. Basically, it's like auto brightness which you can customise. This is so you don't have to on/off a screen filter app.
And yes lower brightness saves battery.
Click to expand...
Click to collapse
i just tried this app and it killed my battery faster than using screen dim because this program is constantly running on the background. what settings are you using on it?
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I'm an author of a program named Custom Auto Brightness, currently it's not under-dimming automatically but it'll be added soon.
Meanwhile, could I ask some of you to test it? I'll provide apk if anyone agrees. The problem seems that PoverVR GPUs seem to have problems with screen shading like in Screen Filter and the like, I'd like to check if I were able to circumvent the problem or not.
jahciple said:
i just tried this app and it killed my battery faster than using screen dim because this program is constantly running on the background. what settings are you using on it?
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Click to expand...
Click to collapse
Having something run in the background doesn't mean it's using a significant amount of phone's battery. The amount of battery saved from low brightness is much much more than the battery used for Lux to compute brightness level. Of course I did not test it, but it is common sense: as the display uses most of the battery. You can check your battery use in settings.
Lower brightness, longer battery. Lux doesn't even appear in battery use. My screebl app, which constantly uses CPU to check for orientation uses only 3% in battery use.
Download ES task manager to see what's running on startup, and look at what you do not use, it'll probably shock you.
As for my settings in Lux, I set it to dynamic and so far my linked samples are:
Lux ----- Brightness
2 --------- -40%
25 -------- -25%
550 ------- 20%
20000 -----100%
Been using these settings for a couple of weeks, and no problems. I have also added picture viewers, camera apps, and video players to ignore/compatible list.
Another tip to save battery which most already know: use setcpu to underclock your phone when screen is off to 300max/300min, or 600max/300min if you use your phone for music. Needs root though.
well i noticed after i wake up in the morning the battery has gone down so much more after i started using lux. i disabled it and everything was better. it probably used about 10% more battery in 6 hours.
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I can say the same about battery drain. Been off full charge now for an hour, already down @ 78%.
Sent from my XT910-Rogers using XDA Premium.
I use the brightness control from widgetsoid. I leave it set at 10% and my battery still hase 40% or more charge after all day and evening, even though I read on the train for about 1 1/2 hours and do moderate email ---huge difference from auto brightness setting. Tap the widget to go to auto brightness when outdoors (although, frankly, I go days without using it outdoors so this works great for me).
Hi guys!
I just bought LG L5 II. It's still UNrooted, so I need a brightness control that doesn't require ROOT privileges. The reason is quite simple - the minimum brightness is too bright, when you're NOT outdoors (if you're outdoors, you better set the brightness on 40-60%). I'm posting here because it doesn't matter If I have Motorola or LG - the principle is the same - display is too bright.
I've installed Screen Filter. In this topic some of you lot are chatting about Lux app - is it better than Screen Filter? What's your opinion? Obviously I want to save some battery and to use my display at night or indoors (without causing pain to my feelings and emotions ).
I will test Screen Filter for couple of days and see what's what. Hope some of you have tested it already and give me some tips. Cheers!
PS: Sorry for reviving this old thread mods, found it on Google, dunno if there is a newer one 'bout the same problem.
I think Lux and other screen brightness modification apps use a transparent layer over the main ui and we actually darken and brighten that layer running over the Ui instead of setting a further down limit to the screen LCD power value. This might be the reason that using Lux or any other screen dimmer app consumes more battery~ the screen LCD uses same power and in addition an extra app is running in the background continuously . It is only the transparent layer that darkens to save your eyes in dark atmospheres~ LCD power consumption remains the same.
^^ This right here is what I've been wondering for some time, because I suspect that at least some of those apps work that way, and is also likely imho what the OP was really asking. Yes, everyone knows the display is by far the largest drain on battery, and so lowering the brightness helps with that, so the question is does the app in question actually do that or does it simply provide a customizable overlay, as the poster above me speculates. Because if an app is doing the latter, not only will it not conserve battery it will actually drain it more, to a point, because the actual brightness is still the same (even if you don't "see" it) and the app itself is running all the time. Granted its consumption may be very low, but the point is that scenario certainly wouldn't SAVE any battery. And my guess is that within this group of apps that are the focus of this thread, some are simply overlays and some (the very technical ones) are the real deal, and it's a question of knowing which to pick. What I'd really love is for someone who is very technical in this area to see this thread and provide some definitive info.
GuccizBud said:
^^ This right here is what I've been wondering for some time, because I suspect that at least some of those apps work that way, and is also likely imho what the OP was really asking. Yes, everyone knows the display is by far the largest drain on battery, and so lowering the brightness helps with that, so the question is does the app in question actually do that or does it simply provide a customizable overlay, as the poster above me speculates. Because if an app is doing the latter, not only will it not conserve battery it will actually drain it more, to a point, because the actual brightness is still the same (even if you don't "see" it) and the app itself is running all the time. Granted its consumption may be very low, but the point is that scenario certainly wouldn't SAVE any battery. And my guess is that within this group of apps that are the focus of this thread, some are simply overlays and some (the very technical ones) are the real deal, and it's a question of knowing which to pick. What I'd really love is for someone who is very technical in this area to see this thread and provide some definitive info.
Click to expand...
Click to collapse
This is partially right. If you have an LCD, you are just dimming your screen, not saving battery in the process. If you are using a LED screen, the app's will save battery since LED pixels can be individually lit. Using black or battery saving backgrounds will also help your battery life on LED screens. This is one of the reasons why LED screens are much more preferred than LCD.

[Q] Screen is always Dim

When I unlock the phone it always starts up very dim and sometimes it turns bright sometimes it doesn't. I have auto-brightness off and I have my brightness set to 100%. I have to move the slider off of 100% and back to 100% to get it that bright. It is very weird. Anybody know how to fix this?
I have the same problem.
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Settings > Display > Auto adjust screen power (untick). Try now.
Been unchecked since day 1. Still does it. Possible that I have a defective unit?
HaruSoul said:
Been unchecked since day 1. Still does it. Possible that I have a defective unit?
Click to expand...
Click to collapse
Is it dim on the home screen or certain apps? cuz internet browser, video etc got their own brightness settings built in that you have to change from the settings within the app.
manbatistuta said:
Is it dim on the home screen or certain apps? cuz internet browser, video etc got their own brightness settings built in that you have to change from the settings within the app.
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Click to collapse
It is dim from the lock screen. Everything once I unlock it is dim. If I lock and unlock the phone like 3 times fast it is fine, but it's a pain in the ass. I'll see if I can take a video of it later when I get home.
I know you said "everything" but try to go to internet browser and disable "auto-brightness" under brightness setting.
Also upgrade your firmware to the latest one to see if that help. My Smart detect is not working and after upgraded it work every single time plus the cell stand by is much improved
I just got my phone back from service, they updated to LF5 - so far it has solved my proplems with dim
I have had 2 handsets that do this now. Its really annoying especially when you are outside.
Basically what is happening is that when your screen dims down before it goes off thats what is happening when you unlock the phone.
I can be using it for 5-10 secs before the full brightness kicks in.
It has nothing to do with power saver or internet. Just running through the home pages and apps list it is doing it.
I am on the latest firmware too.
Does anyone know whats causing it? Is it just a faulty handset (or 2)?
Mine the same. I don't think there bad devices I think its just software related tbh
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Well im glad some others of you have experianced this also.
I just hope its something that will be fixed in an update.
It really p****s me off when it does it and im outdoors.

Answer Vibration too weak, any fix? + 2 more questions :D

Hello guys,
I have turned on the Call alert -> Answer vibration (so when awaiting for the receiver to pick up the phone you don't have to hold the phone near ear - that helps to avoid network)
I found out that the vibration is really weak, is there any way to fix it? A lil bit stronger would be nice.
Also the screen to me is a bit over-satured, any apps to calibrate the screen so it becomes a lil bit naturally? The natural mode is not good imho.
Regarding battery, what apps do you guys use to optimize the battery, what task manager you use to kill / block un-needed apps to run in backround?
Thank you!
Uppppppppp
Phone menu > settings > sound > vibration intensity > haptic feedback
Don't use task killers, they are unneeded on latest Android. Block app from starting with using "autostarts" app, requiring root. There are others, but this works well for me.
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UpInTheAir said:
Phone menu > settings > sound > vibration intensity > haptic feedback
Don't use task killers, they are unneeded on latest Android. Block app from starting with using "autostarts" app, requiring root. There are others, but this works well for me.
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No this doesn't work with the answer vibration, only normal vibration when the phone is ringing etc.
Good question by the OP, I too would like a mod for this.
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UpInTheAir said:
Phone menu > settings > sound > vibration intensity > haptic feedback
Don't use task killers, they are unneeded on latest Android. Block app from starting with using "autostarts" app, requiring root. There are others, but this works well for me.
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Click to expand...
Click to collapse
So you advice that using Task killers = not required? Better root the fone, delete the bloat-wares, set CPU and autostarts?
What else do you do in order to make the S3 battery super-man?
g4rvd4 said:
No this doesn't work with the answer vibration, only normal vibration when the phone is ringing etc.
Good question by the OP, I too would like a mod for this.
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Click to expand...
Click to collapse
Yes making it a lil bit stronger would be nice
+ reduce a bit (very lil) saturation would be awesome too.
Today I compared the s3 with Note and I found out that S3 screen is darker (note is brighter a bit) and s3 is has some slight pink-orange tint, note has the tint to something slight blue-green (very very little)
Many ways to help out battery life.
Disabling motion, GPS, auto sync, lowering screen brightness, setup background apps for manual syncing, prevent certain apps from auto starting, removing or freezing bloatware, UV UC custom kernel, using 2g instead of 3g, disabling animations, and many more......
Personally, I just use lower brightness level or auto bright. Sometimes use "auto brightness" app from the market and customise the curve. Everything else i leave on and sync etc. I want to use this phone the way it was made to I have heavy on screen time and still get 6+ hours.
On the SGS2, I would also UV the GPU and CPU, but waiting for more mature custom kernel for the SGS3 first before trying that.
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UpInTheAir said:
Many ways to help out battery life.
Disabling motion, GPS, auto sync, lowering screen brightness, setup background apps for manual syncing, prevent certain apps from auto starting, removing or freezing bloatware, UV UC custom kernel, using 2g instead of 3g, disabling animations, and many more......
Personally, I just use lower brightness level or auto bright. Sometimes use "auto brightness" app from the market and customise the curve. Everything else i leave on and sync etc. I want to use this phone the way it was made to I have heavy on screen time and still get 6+ hours.
On the SGS2, I would also UV the GPU and CPU, but waiting for more mature custom kernel for the SGS3 first before trying that.
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Click to expand...
Click to collapse
My fone is set to auto-brightness, power saving, screen power or something, all vibro and notifications off (using Light Flow to enable LED notifications)
my device is pushing like 4hours with screenie ON.
hieupham said:
My fone is set to auto-brightness, power saving, screen power or something, all vibro and notifications off (using Light Flow to enable LED notifications)
my device is pushing like 4hours with screenie ON.
Click to expand...
Click to collapse
Grab the Better Battery Stats app from XDA or donate version in market to check your wakelocks. Heard something about Light Flow casing wakelock of not configured right. Check the XDA BBS thread or search Q&A. I only skimmed, so could be wrong. You shouldn't need to use power saving to get reasonable battery life.
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