Why is this phone's auto-brightness so utterly useless? - Samsung Galaxy S10 Questions & Answers

What's going on with this thing? i always have to switch the screen on and off to get it to adjust to the current lighting. Everything about this phone is such a mess.

Do you have adaptive brightness turned on? My snapdragon did not work until I enabled that setting.
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Mudig said:
What's going on with this thing? i always have to switch the screen on and off to get it to adjust to the current lighting. Everything about this phone is such a mess.
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It might be a problem with the ambient light sensor on your unit. My S8+ does the same thing, other S8's don't. Get it replaced.

Iam pretty sure its somewhat normal. Auto brightness has never been great on Samsung phones. I realised this when i briefly switched to the Iphone xs. Its auto brightness worked perfectly. I find the adaptive brightness on the S10 plus to be terrible too. Its as if its either too dark or too bright and sometimes it changes without the lighting conditions changing. Its tolerable but its def nowhere near as good as my iphone xs. Its strange because you would think its a feature that would be easy to get right.

work great for me, better than my old S9

I found one issue. I have used a couple of screen savers with clocks on my night stand. They automatically dim the screen. I noticed every time after using them that the auto brightness was too dark. I figured out that since the phone was on auto brightness when the screen savers dimmed the screen, it was being factored into the averages and causing the overall brightness to be lower than I wanted. Now I try to turn off auto brightness before I use the screen savers. I'll probably set up Tasker to do it for me soon.

Blaalad12 said:
Iam pretty sure its somewhat normal. Auto brightness has never been great on Samsung phones. I realised this when i briefly switched to the Iphone xs. Its auto brightness worked perfectly. I find the adaptive brightness on the S10 plus to be terrible too. Its as if its either too dark or too bright and sometimes it changes without the lighting conditions changing. Its tolerable but its def nowhere near as good as my iphone xs. Its strange because you would think its a feature that would be easy to get right.
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I've noticed the same thing, on my XS Max I rarely had to adjust the brightness but on the S10 I have to do it quite a bit compared to the XS.
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Reset the useage patterns with adaptive brightness
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same problem on my s10e, its much worse than my note 9

Reset the useage patterns with adaptive brightness
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I'm very happy with it. Especially the learning part. I like to usually have the screen dimmer than standard and after a few days it started to do this automatically.
Works like a charm I'd say.

I agree that the S10 does not seem to respond to ambient light well when setting the screen brightness, especially in dark settings. I have a Bixby Routine to set my screen to 10% at night and even then it's still too bright.

Related

[Q] light sensor / auto brightness

HTC's website says the HD7 has an "Ambient light sensor".
When I have the Brightness settings on "Automatically adjust", I do not see any changes to the screen brightness. Darkness and sunlight have no effect. Curious to know if others are having the same problem or if my phone is faulty.
Thanks
If I set mine to Automatically Adjust on either low/medium or high settings it does adjust according to ambient lighting.
Have tested by holding up to a light bulb on all 3 settings and have noticed the changes.
Thanks for your reply.
A bit more experimenting with a LED torch and it does seem to be working. The curve is not as I would like though. I would prefer the screen darker in darkness and brighter in the light much like my old iPhone. I was in full sun today and the screen still wasn’t full brightness. So with it on High and Auto off, the screen was brighter than when on High and Auto on. So Auto was bringing my brightness down to what seemed to be about medium levels making the screen a bit of a pain to see. I want full brightness in sunlight please. I am sure others will prefer this default setting though, especially those concerned about battery life. Hopefully a future software tweak will allow sensitivity and brightness curve adjustments. Until then, I will stick with the "high" setting and Auto off.
Thanks again.
Have same problem.. Automatic light have no effect on my HTC HD7 (unbranded, with and without nodo).
I totally agree, with me its more of a problem in the darkness. It is way too high when it is completely dark and its more obvious when I switch it from auto to "low" as the screen does become much darker.
Its something with either HTC or windows as my old touch pro 2 had the same problem, in complete darkness the screen would never go lower than 30%...
The light sensor on my hd7 never seems to work..they should implement the way it is on the iphone
Sent from my HD7 using XDA Windows Phone 7 App
Is anybody know is there light sensor available physical on HD7?
Heared on HD2 it work's fine. If it software issue then MS mast fix it.
yea my phones ambient light sensor doesnt work either i see no changes with the auto setting on.
Auto-Brightness works fine over over here - o2 debranded with NoDo update.
When i take the phone out of my pocket/case in sunlight, i notice about 2 - 3 seconds after I unlock it, it gets noticeably brighter and when comparing to "high" brightness without auto it's exactly the saem. Agreed though i would like it to be dimmer in complete darkness (in bed, for example).
I am curious if there is a registry entry that I can change to help with the highest and lowest settings. If I turn on auto it does adjust it slightly when I am inside, but when I am in the sunlight I can hardly see anything. If there is no light also it is still what looks like a medium setting making it very bright. I hope we can figure this out, it isn't a big deal but still BTW I am on TMOUS with NODO

screen not so bright on high

So I noticed that the screen isn't as bright as my Note 4 on high brightness , however when I have it set to auto and I'm outdoors it's night and day difference. It's much brighter under auto, even makes my note 4 (on high) seem like it's on medium brightness . Does anyone else notice this? Anyway to make it bright like this all the time? Because full manual brightness seems like medium brightness compared to other phones. A bit disappointed
waleed300 said:
So I noticed that the screen isn't as bright as my Note 4 on high brightness , however when I have it set to auto and I'm outdoors it's night and day difference. It's much brighter under auto, even makes my note 4 (on high) seem like it's on medium brightness . Does anyone else notice this? Anyway to make it bright like this all the time? Because full manual brightness seems like medium brightness compared to other phones. A bit disappointed
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That was already discussed in many reviews
Sent from my SM-G900F
Correct.
Manual brightness only goes to something like 450 brightness, but auto can go to 750.
No way to change that. Was mentioned in multiple reviews.
I was at the beach today and everytime I'd look at my screen it would start out really bright and then dim to like 90%. I wouldn't be able to get it bright until I locked it again. It was very annoying.
There is an issue with the auto bright on the Edge. Not sure if it is the same on plain S6 though.
There is? Mine seems to work as I would expect...
Yeah turn auto off and the phone will still dim in dark rooms and bright up if you shine a light into it. Also the Edge does not appear to be as bright at max as the standard S6.

Screen issue normal

Have the s6 have the screen on basic setting. For some reason it still adapts to sunlight making it brighter automatically. When in low light it goes away. Just wondering if it's normal.
Brightness and screen tone are two separate settings independent of one another
SASQUATCH said:
Have the s6 have the screen on basic setting. For some reason it still adapts to sunlight making it brighter automatically. When in low light it goes away. Just wondering if it's normal.
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Yes, that is so you can see it in sunlight. I actually love this feature. AMOLED panels are notoriously bad in full sun so this really helps out.
laureanop said:
Brightness and screen tone are two separate settings independent of one another
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I have tone on basic and auto brightness off. It still happens.

Auto brightness works wrong in the dark

I have my new Note9 on wireless charger in the night. When I get it from the charger and check it the brightness it very high. When I turn automatic brightness off and on then the brightness is decreased to correct value.
Now I created a workaround using Tasker but am I alone with this issue?
I remember that similar issue was on S9 and S8, so is Samsung going to put this bug in each new model?
libb said:
I have my new Note9 on wireless charger in the night. When I get it from the charger and check it the brightness it very high. When I turn automatic brightness off and on then the brightness is decreased to correct value.
Now I created a workaround using Tasker but am I alone with this issue?
I remember that similar issue was on S9 and S8, so is Samsung going to put this bug in each new model?
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I have yet to find ANY phone that gets attenuation right.
I've found the Note 9 to do OK when cranking it up for well-lit outdoor use,but,it's a bit too dim on the lower end in the other extreme dark/poorly lit situations.
So,it does seem this bug/feature has continued.
Too bad there's not some some fine-tuning baked-in,say, in dev options, to create your own attenuation from lowest to highest brightness (on all phones).
It worked perfect since I bought the phone in Sept until the latest update in Nov. Now the auto brightness did not auto adjust. Either needed me to toggle the auto brightness to OFF and On again or hit the power button to OFF the display and ON back the display.
I find auto brightness to be a bit to bright in lower lighting conditions.
I came back to samsung note 9 (UK model 128gb 6gb) from oneplus 5T which had great battery optimisation and great auto light adjustment.
Overall the oneplus has better face recognition software (quicker and more accurate and you don't have to look at a very particular distance) the fingerprint (sensor) on the oneplus is also quicker.
Hope samsung resolve the bug.
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I am also facing the same issue.
I am also facing the same problem brother when I unlock my phone using iris scanner the brightness increases and then doesn't drop to required level in low light please notify me when you find a solution.
Try...
Settings
Biometrics and security
Face recognition
Brighten screen
Turn it off see if it helps.
(assuming that you are using intelligent scan that could be the issue for the bright at the unlock and taking a bit to go down)

Another greenish tint/hue screen, ambient EQ to blame?

Can anyone provide a picture of 2 phones or the same phone with separate pics actually showing ambient EQ doing it's thing? I tried having it on and off for long periods of time and I've noticed what seems like no difference in color temperature. I just got this XL off swappa a few weeks ago and I came from the 2 XL which has a totally different color experience. I like the color and temp on the 2 XL over this 4 XL but what's boggling my mind is the settings and if they are what is causing the issues! I've read that a ton of people are having issues with this greenish tint/hue at lower brightness and it seems as though this phone has the problem as well. It's killing me as the screen always looks like I have a low level of night mode on, it's super warm and will turn grays to greenish hues at lower brightness. I wonder if ambient EQ that is supposed to be dynamically adjusting screen temp and colors based on ambient light is just basically broken and THAT is what is causing so many issues with the color temp and washed out vibrancy. I've tried all the suggested settings about forcing 90Hz, AOD, etc etc but nothing seems to change this. Infact 90Hz just being on in the normal display settings makes it worse. I did a split screen with settings and chrome on this website (I have dark theme enabled) and toggled smooth display and I can see it get MORE greenish when on so I've turned it off for now. Anyone else think that ambient EQ might be the root of the issues? By the way, I factory reset this phone like 4 times already when I first got it thinking that might help but it has not. Thoughts??
Blame samsung. Oneplus 7t which also has 90hz refresh rate suffers the same issue

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