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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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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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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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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
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?
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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?
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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.
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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.
I don't know if anyone else feels this way, but I tend to think that the auto brightness setting on stock lollipop is WAY too bright, and, while of course it shows off the screen, it wastes battery life.
I can turn on power saving mode to try and dim the screen to some extent. I've also given Lux a try, but it didn't really seem to do much...
Does anyone have an idea for auto brightness which works similarly to how CM12.1 does it on this phone? Where you can set how bright you want it to be, but it still compensates for ambient light?
Thanks!
duraaraa said:
I don't know if anyone else feels this way, but I tend to think that the auto brightness setting on stock lollipop is WAY too bright, and, while of course it shows off the screen, it wastes battery life.
I can turn on power saving mode to try and dim the screen to some extent. I've also given Lux a try, but it didn't really seem to do much...
Does anyone have an idea for auto brightness which works similarly to how CM12.1 does it on this phone? Where you can set how bright you want it to be, but it still compensates for ambient light?
Thanks!
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Click to collapse
I like screen filter. It's very simple and you can pick which percentage you want. I've gotten it lower than stock. I'd recommend giving it a try. Couldn't hurt.
Not sure about the ambient light bit, last time I used it was on my note 2. It may be available.
There's a setting for ambient light too.
Anyone else having issues with auto brightness after the pie update? My phone sometimes does not change the brightness automatically when I move from a bright to dark environment until I turn the feature off and on again.
poppyjay said:
Anyone else having issues with auto brightness after the pie update? My phone sometimes does not change the brightness automatically when I move from a bright to dark environment until I turn the feature off and on again.
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Click to collapse
go to a dark place slide the brightness to desired level. no go under a bright ligh then shut it off and see.
Just tried this. Sometimes it works and sometimes it doesn't. When it doesn't I still have to turn it off and on again for it to work again.
it's the new adaptive brightness..... you set the desired light in each situation over the next few days using the slider (adaptive ON)... it will adapt to your preferences in different situations.....
edwardob said:
it's the new adaptive brightness..... you set the desired light in each situation over the next few days using the slider (adaptive ON)... it will adapt to your preferences in different situations.....
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Thanks I'll give it a try.
Doesent work with my note 9 Pie...
I Flashed ota from 8.1 and later i flashed back to 8.1.
Later i flashed again 9.0 but this time not via ota. I flashed it clean via odin.
Same issues with adaptive brightness :
1. It does NOT learn my pattern. This means : I turn it darker. And later in the same spot it turns it back to the middle... Over days and days the same.
2. If you turn on the camera-app, it turns the brightness high. That is okay, i like that. But if you turn the app off, and if you are too fast for the system, it stays enlighten untill u lock ur device !
Oreo :
1. It learns my pattern from day one (!). I turn it darker. Later on the same spot : It stays dark ! Perfect
2. Turn on the camera app and it got brighter. Nice, like Pie, right ? Yes, but turning the camera-app off and swiping it instand away from recent apps, it turns imediatly back to the normal brightness, it learned from you !
I hate it ! Pie does not work fine with my brightness preferences !
Other user in other forums have the same issues with pie...
And there is no way around. I tryed it all. Every option and every possibility. Iam not a beginner in android.
I gave the adaptive brightness a cance of 10 Days, but every day it learned nothing. And the Camera problem...Turn the app on and open recent apps and swipe the camera away and then go back to home. If u do it too fast (I do it every time on every phone with MY speed) it stays bright like u throw it in the sun
Same here adaptive brightness has gone bonkers for me after pie upgrade. Just like you it works when it wants to. Really frustrating.
So please guys, tell samsung that problem in the members app.
The users in our german forum did that, and i did that too.
I noticed that on my S10e, auto brightness doesnt work as well as it did on my Note 9.
Sometimes I have to manually turn down my brightness if I turn off the lights in my bedroom for example. Or if i turn on the lights, brightness stays on the same level. But if i turn off my phone display then turn it back on, the brightness is suddenly changed.
How well does it work for you guys?
destz0r said:
I noticed that on my S10e, auto brightness doesnt work as well as it did on my Note 9.
Sometimes I have to manually turn down my brightness if I turn off the lights in my bedroom for example. Or if i turn on the lights, brightness stays on the same level. But if i turn off my phone display then turn it back on, the brightness is suddenly changed.
How well does it work for you guys?
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Click to collapse
I have noticed that my S10e is slow to respond to ambient lighting
I have an S10 and to be honest it's hard to say if auto brightness is working how it should. Coming from an LG V30 this phone's display is significantly brighter and especially more apparent when using it in the dark. Even the darkest setting is too bright. I always check the level to make sure auto brightness is working as it should and I guess it is? Either that or it's stuck.
my only comment is that in totally dark room it does not go all the way down , it stays a little bit brighter than normal and than my old iphone x
talking about the s10+
Mohamad Gahed said:
my only comment is that in totally dark room it does not go all the way down , it stays a little bit brighter than normal and than my old iphone x
talking about the s10+
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yeah same here, and the strange thing is that on my Samsung Note 9 & Samsung S7 it actually used to go all the way down in a totally dark room, but on this phone it doesnt for some reason..
It can take a bit for Adaptive brightness to learn what your favorite settings are like.
Yes, same here, I have s10 and in the dark auto brightness is near to half. Wtf?! I tried to calibrate, no chance. For sure this is a bug. If you go in *#0*# you will see it s writing uncalibrate light sensor
Devhux said:
It can take a bit for Adaptive brightness to learn what your favorite settings are like.
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nah, on my Note 9 & S7 it worked as it should on the first day i got those phones
there clearly is a problem with adaptive brightness on the S10, anyone with the S10 who had another samsung phone previously will notice that
no, the auto brightness is trash. it sucks. it never gets bright enough even tho i've made adjustments literally daily. it sucks.
Charkatak said:
I have noticed that my S10e is slow to respond to ambient lighting
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Yup. Same here. Maybe software update will fix this soon.
Even with factory reset it still happened.
Sent from my SM-G970U1 using Tapatalk
x1tymez said:
Yup. Same here. Maybe software update will fix this soon.
Even with factory reset it still happened.
Sent from my SM-G970U1 using Tapatalk
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I too did factory reset...at least we have tried
Different topic: I will wait for T-Mobile firmware one more day and may possibly return the device back to Samsung and keep my Pixel 2
Charkatak said:
I too did factory reset...at least we have tried
Different topic: I will wait for T-Mobile firmware one more day and may possibly return the device back to Samsung and keep my Pixel 2
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I got my first update on unlocked version. Why return?
Sent from my SM-G970U1 using Tapatalk
x1tymez said:
I got my first update on unlocked version. Why return?
Sent from my SM-G970U1 using Tapatalk
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First reason: I want some T-Mobile features what unlocked doesn't provide natively and may require an extra app to function, but if before return window closes, I would be able to find a 100% firmware that would work, then I may not return the device.
Second reason: I don't like the fingerprint on S10e and maybe it is somehow better than S10's implementation, I still have to be more precise than Pixel 2 and other which had the sensor on the back.
Charkatak said:
First reason: I want some T-Mobile features what unlocked doesn't provide natively and may require an extra app to function, but if before return window closes, I would be able to find a 100% firmware that would work, then I may not return the device.
Second reason: I don't like the fingerprint on S10e and maybe it is somehow better than S10's implementation, I still have to be more precise than Pixel 2 and other which had the sensor on the back.
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Interesting. I came from OnePlus 6t, the in displayed scanner suck kiwi balls. Everytime you switch screen protector you needed to rescan your finger. Lol.
Sent from my SM-G970U1 using Tapatalk
x1tymez said:
Interesting. I came from OnePlus 6t, the in displayed scanner suck kiwi balls. Everytime you switch screen protector you needed to rescan your finger. Lol.
Sent from my SM-G970U1 using Tapatalk
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Oh, that is not convenient at all. I think the manufacturers are pushing their limits to please customers with new designs/features which in reality hurt the quality of the devices we pay for
I have the S10 plus and the auto brightness seems to be functioning fine. Occasionally in the dark I get thrown off with how bright this screen is. The brightness setting does decrease significantly in the dark but when viewing something with a mostly white background, I have to squint until my pupils constrict to a point where my retinas aren't getting torched. In brighter environments, the brightness level seems to increase accordingly.
Hi guys,
I came across an article about this issue from Aman Jain (Valuetalk) : https://www.valuewalk.com/2019/04/galaxy-s10-auto-brightness-no-issue/amp/
Facing Issues With Galaxy S10 Auto Brightness? Do This
Aman Jain Aman Jain
April 3, 2019 11:42 am
Samsung Galaxy Note 10E
rieo / Pixabay
Galaxy S10 auto brightness
rieo / Pixabay
We have already covered the issues with the proximity sensor in the Samsung Galaxy S10. Now, it appears, one more sensor in the Galaxy S10 is not working as it should. Several users are complaining that the Galaxy S10 auto brightness or the ambient light sensor is not working perfectly.
Galaxy S10 auto brightness – what’s the issue?
Affected users have raised the issue on social platforms and Samsung’s product forums (first spotted by tech site PiunikaWeb). Users complained that the brightness level does not automatically come down in low light. So, they have had to do it manually, but it remains at the set level even when the light is good.
“Sometimes I have to manually turn down my brightness if I turn off the lights in my bedroom for example. Or if i turn on the lights, brightness stays on the same level. But if i turn off my phone display then turn it back on, the brightness is suddenly changed,” one user said.
Further, users also say that with adaptive brightness turned on, the screen goes dark when facing the sun. “White highlights are bright blue, and all colors are distorted. It’s unusable. Spin back around or go into the shade, and the screen comes back to normal,” one user said on Reddit.
Users say that this was not the case with the Galaxy S9, where the auto brightness feature worked perfectly. One user even claims that the Galaxy S10 doesn’t even have a light sensor, instead, maybe there is some in-display sensor that needs a software fix.
“..even if you put your finger on the front camera the auto brightness still moves …..also if you acces this *#0*# you cannot find the light sensor because it’s not there like old samsung phones,” one user said on Samsung’s product forum.
Adaptive brightness to blame
Several users believe that the adaptive brightness is to blame here, and so they have turned it off. However, turning it off is not a solution, and many users agree to that.
“This is a huge problem, and should not be happening on a new phone. The adaptive brightness is a major feature of the phone, and simply turning it off isn’t an option as far as I’m concerned,” one Reddit user said.
It must be noted that Adaptive Brightness came with Android 9. It is an AI based feature that gets better with time. Meaning, it would learn from the interactions that users make with the screen brightness slider, and over time, it would customize the brightness automatically to meet the users’ needs.
Google says that in its testing for Adaptive Brightness, it found that half the test users made fewer adjustments to the slider after a week of using the Adaptive Brightness.
Not an issue, give it some time
Based on Google’s explanation, it seems, users need to give some more time for their phones to adapt to the Adaptive Brightness. Even Samsung’s explanation of the issue with the Galaxy S10 auto brightness is somewhat similar.
“From Android P, a user’s brightness setting pattern is learned, and when the user sets a specific brightness the automatic brightness is controlled to be closer to that specific brightness…… However, when you set the brightness, the brightness can be applied immediately in the short term. If more than 30 seconds after the screen is turned off and the ambient light environment changes by more than 60%, this short term setting brightness will return to the light that was relearned,” Samsung developers say.
Additionally, developers say that users can reset the brightness curve to start the learning process again. To do this, go to Settings – Apps – Show system apps – Device Health Service – Storage – Manage Storage – reset Adaptive Brightness.
All this explanation from Samsung developers and Google could mean that the complaints from users about the Galaxy S10 auto brightness are valid, but it still is not an issue. Things will get better with time as AI learns more about users’ preferences.
Though it is not a bug, affected users do not seem very satisfied as they still have to live with inferior quality images (even if for some time until AI applies the learning).
“Not sure it’s a error to be replicated per se. It’s just an inferior looking quality of image. They will have to make the comparison to see the very obvious difference,” one user said.
ValueWalk
FYI : the brightness sensor is under the screen like the proxity sensor, located bellow the wifi / network icon. It's visible at sun light.
inkortage said:
FYI : the brightness sensor is under the screen like the proxity sensor, located bellow the wifi / network icon. It's visible at sun light.
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There are actually two light sensors: front and back of the phone.
Unlock the device without pressing the power button and only by placing your fingerprint on the sensor.
The light sensor starts checking the environment light only in this situation