Hello. I updated my T to JellyBean two days ago. I turned auto-brightness off because I thought Sony changed something and it's was working differently - the screen was always as black as possible just like there was no light around me. I just checked Service Menu and Ambient Light Sensor data. Result? Constant "0" value wherever I am - in dark room or outside at direct sun. Do you have the same problem too? Maybe JellyBean breaks ALS for now?
Tapatalked from Poland using Xperia T
romcio47 said:
Hello. I updated my T to JellyBean two days ago. I turned auto-brightness off because I thought Sony changed something and it's was working differently - the screen was always as black as possible just like there was no light around me. I just checked Service Menu and Ambient Light Sensor data. Result? Constant "0" value wherever I am - in dark room or outside at direct sun. Do you have the same problem too? Maybe JellyBean breaks ALS for now?
Tapatalked from Poland using Xperia T
Click to expand...
Click to collapse
Mine says 0 as well, but i have no problem with the display, auto brightness works.
Are you saying auto brightness is broken on your phone?
Odp: [Help] Broken ALS on JellyBean?
Ummm yes. My bad I should have described it better. Yes I think it's broken, because ALS always shows "0" so the screen dims to the minimal value and it's totally ureadable outside with auto brightness turned on. When it's turned off it's ok, no problems at all.
I had no problems on ICS, auto brightness was always turned on and screen brightness was always set to the value where on the brightness widget that sun icon is "off" so it could adjust itself. And I had no problems in dark rooms where the screen was "correctly" dark and outside where it was very bright. Without manual messing with the brightness.
Tapatalked from Poland using Xperia T
ok,
does yur screen change brightnes when you turn auto brightness off in settings?
Odp: [Help] Broken ALS on JellyBean?
I have it turned off now I couldn't use the phone because screen was too dark.
But yes, the brightness changes:
Turning AB on = brightness does not change at all. After turning screen off and on brightness drops to the minimum like I was in a dark room.
Turning AB off = brightness gets back to normal just like it's set.
Tapatalked from Poland using Xperia T
Same for me, auto brightness act strange on my device too. When I thick "adjust brightness" sometimes nothing happends, not every time but it's not normal...
I'm just wondering, on ICS/JB, under brightness, mine had 'Adapt to lighting conditions' but I was still able to adjust the brightness :/
Does yours say auto brightness or adapt to lighting conditions?
SWFlyerUK said:
I'm just wondering, on ICS/JB, under brightness, mine had 'Adapt to lighting conditions' but I was still able to adjust the brightness :/
Does yours say auto brightness or adapt to lighting conditions?
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Click to collapse
Adapt to lighting condition/auto-brightness... In Polish it's "Dostosuj do oświetlenia" so in English it's "Adapt to lighting conditions" but commonly it's just called auto-brightness. I think it does not matter, we all know what's going on
Simply said - the tick option above the bar which you can adjust...
Constant "0" value read by ALS makes my phones screen always dark with auto-brightness on. Period On ICS there were no problems because ALS was working correctly.
EDIT:
I'll try to record a video and post it on youtube to show you my problem.
AW: [Help] Broken ALS on JellyBean?
Same here...auto brightnes act strange on my device with JB.
Gesendet von meinem XPERIA T mit Tapatalk
Thread can be closed - problem solved. I did a total wipe (formatting every partition except the ones connected with sdcards) in CWM and reflashed the FW. Then, after booting the device I did not check the option with restoring my saved data (Wi-Fi passwords, Settings settings etc.). The problem is gone but still auto brightness works so different when compared to the ICS one.
romcio47 said:
Thread can be closed - problem solved. I did a total wipe (formatting every partition except the ones connected with sdcards) in CWM and reflashed the FW. Then, after booting the device I did not check the option with restoring my saved data (Wi-Fi passwords, Settings settings etc.). The problem is gone but still auto brightness works so different when compared to the ICS one.
Click to expand...
Click to collapse
My phone does show ALS value of 0 as well.. but auto brightness seems to work..
ALS value = 0 for me too!
Brightness increases but not decreases until the screen goes off...
I got back to ICS and ALS works fine!
stedrum said:
ALS value = 0 for me too!
Brightness increases but not decreases until the screen goes off...
I got back to ICS and ALS works fine!
Click to expand...
Click to collapse
Yeah you are right. I can revive the thread somehow for any other people here. Also for me because auto brighness does not work again
But I don't care. I use manual brightness for a very long time and I got used to it. No annoying screen flickering and any other stuff
Autobrightness works, but a little different way than on ICS. ALS looks like it's off, but als_results file gives different results in different light conditions and the screen brightness really changes.
But sometimes the sensor stops working for some reason and you have to reboot to repair it. This happened to me between 2 or 3 reboots after fresh install of rom and now it's fine. (maybe a problem with illumination service).
But don't forget that the screen brightness is affected by thermal throttling and values from factory are very low. I think about 50% brightness at about 45°C xo_therm temperature.
I prefer ICS way...
it also happens in Xperia V JB ..
Related
Hi!
The automatic brightness on my Xperia Z behaves weird (altough I think it is a bug)
This is what happens:
I have the phone set to "adapt to light conditions" (automatic brightness)
Now when I slide the brightness slider, the brightness changes. But, depending on the setting of the slider, it will not go to full brightness or darkest on its own. When I turn off "adapt to light conditions", it becomes brighter or darker, depending on slider position. But it will never go to 100% on it's own, not even directly under a lamp. It also becomes a little brighter when I turn off automatic brightness and have the slider set to 100%.
Expected behaviour:
I turn on automatic brightness, and put the slider in a, let's say, 60% position. The phone goes to 2% brightness in a pitch dark room (when I read in bed) and switches to 100% when I'm outside in the bright sun. When it does not sense extreme conditions (e.g. sensor reading <20% ambient brightness or >80% respectively; then gradiently going to darkest or brightest gradiently, of course), it aims for the +-60% brightness I specified with the slider.
Conclusion: The slider is an overall threshold for screen brightness and it does not adjust in a 2-100% brightness range, but around maybe +-30% or so around the position the slider is set at. This sucks!
This seems to clearly be a bug, and imho this contributed to the somewhat "not so impressed with the screen" reviews I read before I bought it. Because the screen is really very good if it is set to the correct brightness.
Thanks for the answers!
PS: When I enter the service menu with *#*#7378423#*#* and check the ambient light sensor, it gives me values between 0 and 1000 - so it does definitely work correctly. Build number is 10.1.A.1.350 - I know there is a newer one, but my phone is carrier branded (3 Austria, for that matter) and hasn't been updated yet, unfortunately. Can someone confirm that is is fixed in .434?
x-post from talk.sonymobile.com
I dont think this is a bug. It's been like that on the t, tx, v since they were launched.
LitoNi said:
I dont think this is a bug. It's been like that on the t, tx, v since they were launched.
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Click to collapse
Really? This is almost a deal breaker for me :/ that is a really stupid behaviour, what do I need automatic brightness for if I have to change it myself anyway? I really don't want to care about this miniscule thing on a 600€ device - I expect it to adapt to all conditions.
I didn't want to root it or put a custom rom on it - Sony did a good job with the software as it is, except the automatic brightness.
Sony phone has the best auto brightness
You can find on any phone.
You can say Samsung's auto brightness sucks but not Sony
In auto mode you have the choice to set the minimum brightness level you want and the level will go up depends on the lighting situation and sensor reading.
Yes it has some threshold limitations but it's very sufficient.
Sent from my C6602 using xda premium
gm007 said:
Sony phone has the best auto brightness
You can find on any phone.
You can say Samsung's auto brightness sucks but not Sony
In auto mode you have the choice to set the minimum brightness level you want and the level will go up depends on the lighting situation and sensor reading.
Yes it has some threshold limitations but it's very sufficient.
Sent from my C6602 using xda premium
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Click to collapse
Sorry, but "best auto brightness" is not what would've come to my mind thinking about the xz and I would never buy a Samsung plastic brick
I had a Nokia N9 previously (that I miss dearly, but the internal 3G antenna was broken so I had to replace it... still by far the best phone I ever owned) and it had exactly the auto brightness behaviour I expected - when I read in the dark, it when down to the lowest possible setting. And when I was in bright sunlight, it went to full brightness wihtout a delay or hassle. I could read it perfectly under any condition and never thought about the settings. The slider only indicated a preferred standard brightness - always had it at 60% and it was perfect.
I really don't understand why other manufacturers wouldn't do it exactly the same way? As I said before, why even have an auto brightness setting if I have to go to settings to adjust it anyway?!?! If I put the slider on 60% and auto brightness on, it burns my eyes in the dark and I can't read it in bright sunlight - I even have to adjust it when the sun shines through my windows at work?!?! WTF Sony?
We are talking android here
I don't know if you had the chance to use gingerbread,froyo....
Maybe android has some limitations.
Sent from my C6602 using xda premium
gm007 said:
We are talking android here
I don't know if you had the chance to use gingerbread,froyo....
Maybe android has some limitations.
Sent from my C6602 using xda premium
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Click to collapse
iirc it didn't annoy me (and boy am I picky about details like that! ) on the HTC Magic (up to the last CM that supported it) and the Nexus S I had before the N9... anyway, seems I have to get a decent brightness toggle widget :/ (maybe you can point one out?)
but thanks for your replies!
just for the record and anyone who may find this thread in the future:
I just installed "Auto Brightness" and it seems to work well and has tons of settings. Would have preferred a more native solution... I hope this doesn't drain the battery.
dr. g
I just got my XZ1 Today and straight away upgraded to 4.3.
I am having problems with the brightness, I have turned the 'adapt to lighting' setting off, but each time i go to my home screen my screen brightness goes down, it also does the same when I go to the last page of the app draw. This also occurs when starting games, the brightness will go down in the loading screen and then go normal when the game starts.
Is this a bug/issue, or is this meant to happen? If its the former, is there a fix
Sorry if this sounds newbie
Thanks,
Alex
Sent from my C6903 using xda app-developers app
I don´t think that this is normal !!! Maybe you should do a factory reset: settings ----> Backup&Reset ----> Factory data reset Before doing this you should save your data, e.g with pcc (PC Companion) Hupfully I could help you
PS: Next time questions please in the Q&A section please
I think it's normal, this option is called something like "Optimized Backlight". It could be turned off in one of the earlier firmwares, but that caused random reboots so Sony decided to make it an always-on option and removed the entry from the menu.
Optimized Backlight adapts the brightness according to the displayed content, the more crowded and vivid the picture is the brighter the backlight gets.
OfficerTux said:
I think it's normal, this option is called something like "Optimized Backlight". It could be turned off in one of the earlier firmwares, but that caused random reboots so Sony decided to make it an always-on option and removed the entry from the menu.
Optimized Backlight adapts the brightness according to the displayed content, the more crowded and vivid the picture is the brighter the backlight gets.
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Click to collapse
I forgot about this Option, but in my case I can not notice any brightness differences in many situations
I did not like the stock brightness controller so I have installed Lux Auto Brightness from google play and its working perfectly
Hi,
After I installed KitKat with Cyanogenmod 11 on my Samsung S3 Mini the Automatic Brightness function stopped working.
I read all the posts regarding light sensor on this issue (for S3 Mini) and found opinions vary between "no light sensor at all", "light sensor combined with proximity sensor", "light sensor exists but obscured by hardware", "light sensor disabled in kernel"...
My questions:
Did anyone manage to activate the light sensor on CM11? Is there some change I can do in the kernel to activate it?
I also tried to test for the light sensor with *#7353#, but all I get is a message saying "MMI complete" but it didn't work. Does that work only on the custom ROM? Is there a way to do this test on CM11 ROM?
If there is no light sensor then how did the Automatic Brightness function work on the custom ROM? (and I think I remember noticing the brightness changing automatically at different light levels, but I'm not 100% sure).
Many thanks!
SIII mini doesn't have a light sensor so obviously it's not working. That's all.
soralz said:
SIII mini doesn't have a light sensor so obviously it's not working. That's all.
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Click to collapse
If that's true, then how come automatic brightness was working with the stock ROM?
Is it possible that the stock ROM was using the camera for it?
(I wrote before: "If there is no light sensor then how did the Automatic Brightness function work on the custom ROM? (and I think I remember noticing the brightness changing automatically at different light levels, but I'm not 100% sure)." I meant STOCK ROM not custom ROM).
trax72 said:
If that's true, then how come automatic brightness was working with the stock ROM?
Is it possible that the stock ROM was using the camera for it?
(I wrote before: "If there is no light sensor then how did the Automatic Brightness function work on the custom ROM? (and I think I remember noticing the brightness changing automatically at different light levels, but I'm not 100% sure)." I meant STOCK ROM not custom ROM).
Click to expand...
Click to collapse
Huh? Previously my SIII Mini I8190N doesn't have such automatic brightness selection on stock 4.1.2. Probably you have installed a mod and let the camera determine the lightning conditions?
I can confirm, as far as I know, that there is no ambient light sensor on S3 mini, so the automatic brightness on custom rom doesn't work on our device.
Install Lux app which uses the front camera to estimate incoming light to auto adjust screen brightness.
ffoucault said:
I can confirm, as far as I know, that there is no ambient light sensor on S3 mini, so the automatic brightness on custom rom doesn't work on our device.
Install Lux app which uses the front camera to estimate incoming light to auto adjust screen brightness.
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Click to collapse
I'm 100% sure I was able to select automatic brightness on the stock ROM. Maybe it didn't actually do anything, but it was possible to enable it...
Anyway, obviously changing the brightness level manually would be less battery-consuming, but assuming that I'm lazy and will keep it on relatively high settings, would I be saving battery life if I use the front camera for it, or would using it will actually consume more than I'm saving?
Cheers!
trax72 said:
I'm 100% sure I was able to select automatic brightness on the stock ROM. Maybe it didn't actually do anything, but it was there...
Anyway, obviously changing the brightness level manually would be less battery-consuming, but assuming that I'm lazy and will keep it on relatively high settings, would I be saving battery life if I use the front camera for it, or would using it will actually consume more than I'm saving?
Cheers!
Click to expand...
Click to collapse
Lux can be triggered only when you wake up the phone so it can adjust the brightness. Usually my screen don't go beyond 20-40% when i'm indoor, In my opinion you'll drain your battery way faster with your display set to a fixed high setting.
@solution
You can easily try with Lux Auto Brightness an app witch uses the camera instead of light sensors it changes the brightness every time screen turns on
ffoucault said:
Lux can be triggered only when you wake up the phone so it can adjust the brightness. Usually my screen don't go beyond 20-40% when i'm indoor, In my opinion you'll drain your battery way faster with your display set to a fixed high setting.
Click to expand...
Click to collapse
Alright, I'll try it out
Cheers!
soralz said:
Huh? Previously my SIII Mini I8190N doesn't have such automatic brightness selection on stock 4.1.2. Probably you have installed a mod and let the camera determine the lightning conditions?
Click to expand...
Click to collapse
Most definitely not.
Just picked up an ME572c and I'm very impressed for the price. However I have noticed the screen brightness levels keep fluctuating as if the light sensor is constantly detecting different light levels.
Has anyone else experienced this?
madgibbon said:
Just picked up an ME572c and I'm very impressed for the price. However I have noticed the screen brightness levels keep fluctuating as if the light sensor is constantly detecting different light levels.
Has anyone else experienced this?
Click to expand...
Click to collapse
Hi,
i notice this too, but that can be related to the power saving mode. Plz turn it off and check the settings in detail. Maybe that helps.
Further inside the developer options there is another option to configure the auto brightness.
You can change the behaviour from dynamic to immediately or slow mode and active an onscreen lux, gain and brightness value display.
Btw i am not satisfied with the auto control, as for my taste the brightness is still too low in a less lighted room. Sensor is reporting 0 lux already with a brightness of 14 which would be ok for a really dark room & night but not at daytime.
What is your experience?
I tried playing with power saving mode and the auto brightness controls in developer options. While I could reduce the fluctuations, I could eliminate them completely. Unfortunately I found it too distracting and returned the device earlier today. It's a shame as everything else was quite impressive for the money.
I also found the fluctuations annoying, my solution was to turn the auto-brightness off. Honestly I dislike auto-brightness on any device, it was also one of the first things I turned off on my laptop.
I am using Lux app now and raised minimum brightness at 0 lux. Thats ok for me now.
tycoo said:
Hi,
i notice this too, but that can be related to the power saving mode. Plz turn it off and check the settings in detail. Maybe that helps.
Further inside the developer options there is another option to configure the auto brightness.
You can change the behaviour from dynamic to immediately or slow mode and active an onscreen lux, gain and brightness value display.
Btw i am not satisfied with the auto control, as for my taste the brightness is still too low in a less lighted room. Sensor is reporting 0 lux already with a brightness of 14 which would be ok for a really dark room & night but not at daytime.
What is your experience?
Click to expand...
Click to collapse
Just bumping this to confirm this works and so that others can see. I used Developer options as well (before I found this post) and noticed the instant setting works best.
One more setting to also double check... Make sure that in developer options under auto brightness that you disable allow change gain...
Even with everything disabled it appears as if something still is changing the display. I particularly see it with something like a reddit browser when I'm viewing pictures. You click the pic, it loads and displays and then 1-2 seconds later the display adjusts based upon what is being displayed. Depending upon the picture it can be pretty annoying. I may have to root and start poking around to find out what is causing this.
with the lollipop update this issue is fixed for me.
Is lollipop really solve the problem?
muiriddin said:
with the lollipop update this issue is fixed for me.
Click to expand...
Click to collapse
Hello!
Im on lollipop, but the problem you had, still occur at me.
Did you noticed this problem, since you on lollipop?
I have the same problem. When i read, or browsing, the brightness changes in 2-3 steps.
Ok guys so I need to know if there is a sensor issue with my phone .I don't use auto brightness no more because if you go in the sun the brightness overrides itself to brighter than max brightness and it is the reason why I've had burn in 4 times so far and had to get the screen replaced. But I've also noticed that with auto brightness off but you have the brightness maxed out and go in the sun or shine an led torch at the sensor the screen will kick up to override max brightness sun mode out like when using auto brightness. Is this normal behaviour. Can anyone test this fpr me please .only 6 months left of warranty left
So if this is a feature its stupid ,and make sure you never put your phone on max brightness in manual or autobrightness if out side and it's sunny as it will kick in and cause screen burn .
I've factory reset it and cleared cashe still the screen in manual mode if maxed out in the sun with the brightness maxed out will auto ride to super max brightness mode .im on the oreo uk fm
Phone is uk unlocked note 8.
Anyone? I see lots of views no replys I'm sure everyone that view this thread owns a note 8?
OK lol thanks for the great respone guys smh this place sucks :good:
haircut123 said:
OK lol thanks for the great respone guys smh this place sucks :good:
Click to expand...
Click to collapse
No, this place does not , if you do not get any response , it means nobody has something useful to share, beeing rude will gain you a ban
Maybe your the only person that has this error, so no one has any advice to give other than to factory reset (which you all ready done).
Most people has moved on to other phones. So you'll have to be patient. I say is take it to the Samsung store and see if it is covered under warranty.
I'm not the only person all note 8s do this i think but nobody in this thread owns a note 8 or 9 other than me because they both do it. On both my phones.its a terrible feature as it will cause burn in.if you want to be able to see the screen outside in the sun
So i've been using auto brightness for 2 years, i don't have any burned screen. Last week I've been using phone on sun, taking a lot of pictures (brightness set to auto, on camera app its option to set it to max bright) and still no burnout. I think you should say your problem to guy who will accept your warranty next time
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
haircut123 said:
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
Click to expand...
Click to collapse
I will add that friend have a s8, his screen is good. Also another friend had note 8 and now note 9, always autobrightness on, no problems so far.
I have a little experiment
1st, I set auto brightness on, turn on a torch on the sensor, brightness go to max, then turn it off, and brightness go to middle (room light on)
2nd, set the auto brightness off, slide the brightness to minimum, turn on the torch to sensor, and brightness remain to minimum, nothing change
So I assume maybe it's a software feature I don't have, you can check with your friend running the same firmware, or you can check using *#0*# on keypad, click on sensor, look for light sensor, and do a simple test, see how much lux you have when you're on direct sunlight, or in a room, then you can flip your phone down / reverse the light source, the lux sensor must be read it on continuous count, as you flip your phone, the number will get decrease
I hope you understand what I am saying, because English is not my native language
ahmadddea said:
I have a little experiment
1st, I set auto brightness on, turn on a torch on the sensor, brightness go to max, then turn it off, and brightness go to middle (room light on)
2nd, set the auto brightness off, slide the brightness to minimum, turn on the torch to sensor, and brightness remain to minimum, nothing change
So I assume maybe it's a software feature I don't have, you can check with your friend running the same firmware, or you can check using *#0*# on keypad, click on sensor, look for light sensor, and do a simple test, see how much lux you have when you're on direct sunlight, or in a room, then you can flip your phone down / reverse the light source, the lux sensor must be read it on continuous count, as you flip your phone, the number will get decrease
I hope you understand what I am saying, because English is not my native language
Click to expand...
Click to collapse
You did the test wrong friend you need to turn off auto brightness and slide the brightness slider to max brightness it must be fully maxed .then shine led torch at the sensor then the brightness overide kicks in and goes even brighter just like In auto brightness mode.but if the slide is not fully maxed it won't do it
haircut123 said:
I'm not the only person all note 8s do this i think but nobody in this thread owns a note 8 or 9 other than me because they both do it. On both my phones.its a terrible feature as it will cause burn in.if you want to be able to see the screen outside in the sun
Click to expand...
Click to collapse
haircut123 said:
Well this is good to know just went to the sammy service centre and tested the phones they had there with my led torch and they all do it including the s9 plus .so it maybe always was like that or it's been added into a fw.
Click to expand...
Click to collapse
Interesting you mentioned all devices do this before you went to the service centre and confirmed it. That admission renders your entire post pointless. If all the devices does this, it means it's not a fault on your sensors or anything on your side, and it means it's indeed just a feature.
Max_Terrible said:
Interesting you mentioned all devices do this before you went to the service centre and confirmed it. That admission renders your entire post pointless. If all the devices does this, it means it's not a fault on your sensors or anything on your side, and it means it's indeed just a feature.
Click to expand...
Click to collapse
I said imo that all devices have this issue. Because bothe my note 8 amd 9 have the same issue .and i found a thread on reddid where 2 others also had the same issue.its not a feature because it can damage the screen it must be a software bug that Sammy need to fix
haircut123 said:
You did the test wrong friend you need to turn off auto brightness and slide the brightness slider to max brightness it must be fully maxed .then shine led torch at the sensor then the brightness overide kicks in and goes even brighter just like In auto brightness mode.but if the slide is not fully maxed it won't do it
Click to expand...
Click to collapse
Ah I see, after doing that, I found out that the screen goes brighter and the colors seem to be fade out
Maybe it will help us to watch better when we got under direct sunlight (I think it's not a bug)
But in real life usage, I have my adaptive brightness turn on, then when I think it's too much bright at the moment, I will manually adjust it to my desire brightness
So that the system will learn the pattern and will apply automatically next time I had the same condition
Doesn't do that with mine and I live in Hong Kong.