Auto-Brightness - Samsung Galaxy Note 8 Questions and Answers

So, at night my brightness is set to the lowest (in a dark room). The problem I have is when I turn the phone on from being locked and screen off...it goes to Iris scanning screen which is about 20% brighter...it stays at that brightness even after the unlock. The phone then takes about 10 seconds to adjust to the darkness.
Is my sensor messed up? Is there a setting I'm missing somewhere?

I was wondering the same thing also. When I select auto brightness on or off nothing happens. Stays at same brightness Leavell. I come from note5 and when you selected auto brightness on or off you could tell the difference. On brightness would dim and react to the lighting, off it would be bright. I hope this isn't a hardware issue.
Sent from my SM-N950U1 using XDA-Developers Legacy app

Sounds like the old issue where after taking a pic the homescreen would remain bright.

Weird solution (for me)
I had the same problem (auto-brightness) and I did factory reset and even sent back to Samsung (they did another reset). But end of the day I figured out it was a VERY WEIRD situation for me - believe it or not, I am using Spigen Liquid Armor case and that is the culprit.
I remove the case and it works perfectly. I put it back on, it stops working. I tried on my friend's Note 8, exactly the same issue. It is just a rubber case - I cannot explain at all.
IF you happen to use a Spigen case - give that a try.

I was going to get a slim armor one, I think an urban armor plasma would be better then!

So it must be interfering with one of the light sensors?

Related

Auto brightness not working as it should?

I have been noticing that my auto brightness doesn't work like it did when I first got my phone a few months ago.
Back then it seemed like it changed brightness after a few seconds when it should.
Nowadays it doesn't seem to do that anymore.
Now if I hold my phone close to a bright light, hit the power button and unlock the phone, the screen is very bright, as it should. When I hold my phone in a dark place, it doesn't adjust the brightness. It keeps being very bright.
BUT, if I hold my phone in a dark place and hit the power button and unlock the phone, it's dark, but when I move my phone to a brighter location it does make the screen brighter.
I first thought this had to do with CM, but now on stock froyo it does the same thing.
Is this normal, and am I just mistaken? And should the phone adjust the brightness when I hold my thumb on the sensor thats just right under the power button on the front of the phone (I expect the screen to be less bright)? Because it doesn't do that.
Thanks in advance.
No it's not normal, mine reacts to changes in ambient light in a second or 2 (FRF50), just like yours used to.
When I cover the light sensor with my thumb, the screen dims right down.
Thanks for your reply.
Is there anything I can do to check why this doesn't happen on my phone?
Can I perform a check on the status of my sensor, on it's behavior?
And are there any known reasons why this could happen?
Thanks in advance.
This exact issue is happening with me ever since I updated to 2.2. It worked perfectly before but now I notice that once the screen adjusts to maximum brightness in a well lit area, it never dims....don't know what the problem is. But I hope there is a solution.
Good to hear I'm not the only one with problem, that gives me hope this might be a software issue rather than a non-working sensor.
Rusty! said:
No it's not normal, mine reacts to changes in ambient light in a second or 2 (FRF50), just like yours used to.
When I cover the light sensor with my thumb, the screen dims right down.
Click to expand...
Click to collapse
Actually I may have to take this back, in retrospect, the dimming actually could have been the screen timing out.
When covering the sensor with my thumb and not having the screen set to 15secs, it doesn't dim until I lock/unlock the screen.
Reading on another forum this is by design rather than a flaw, as people complained the screen would fade in and out in certain light conditions... now it can't.
Ah, okay. Good to hear.
Thanks again, Rusty.
froyo seems to fix the autobrightness for me, at least now i can see the screen brightness is changing according to lighting condition, previously i don't notice it (using cyan ROM prior to froyo).

Screen changing brightness when not on Auto and no power saving...

I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
I don't have the flickering when not on auto and lowest setting.
However some apps can dimm the screen while loading.
On the TF700 the stock browser did that when loading a page but on the TF701 the brightness doesn't do that.
You have an ambient light sensor built into the device. It adjusts the brightness based on the lighting in your environment. It can't be turned off either.
Sent from my Transformer Infinity TF701T using Tapatalk HD
xRevilatioNx said:
You have an ambient light sensor built into the device. It adjusts the brightness based on the lighting in your environment. It can't be turned off either.
Click to expand...
Click to collapse
It can't be turned off? So when you turn on automatic brightness it just changes the brightness more drastically? This doesn't sound right.
Based on the other poster's response, I think I need to return this unit. The screen dimming/brightening happens to often and randomly to be part of my apps and I even noticed, in some apps, that just touching the screen causes a brightness change.
Even if this is by design, it is far too distracting.
dbozam said:
It can't be turned off? So when you turn on automatic brightness it just changes the brightness more drastically? This doesn't sound right.
Based on the other poster's response, I think I need to return this unit. The screen dimming/brightening happens to often and randomly to be part of my apps and I even noticed, in some apps, that just touching the screen causes a brightness change.
Even if this is by design, it is far too distracting.
Click to expand...
Click to collapse
Read it and weep my friend. Proof is in the pudding..
Sent from my Transformer Infinity TF701T using Tapatalk HD
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
My 701 is doing this as well. Turned off auto brightness, turned off power saver, rebooted. When it comes back up the device acts like auto brightness is on, with screen brightness fluctuaating randomly. Turning power saver on and off again seems to solve it, but that behavior is very annoying - it's why I turn auto brightness off in the first place.
US SKU running 4.3 installed via ota, no root or unlock or anything - straight stock. Its also my second device, my original had a bad cable and wouldn't charge. Serial number ends in 072259.
Sent from my K00C using Tapatalk 4
Aaroneious said:
My 701 is doing this as well. Turned off auto brightness, turned off power saver, rebooted. When it comes back up the device acts like auto brightness is on, with screen brightness fluctuaating randomly. Turning power saver on and off again seems to solve it, but that behavior is very annoying - it's why I turn auto brightness off in the first place.
US SKU running 4.3 installed via ota, no root or unlock or anything - straight stock. Its also my second device, my original had a bad cable and wouldn't charge. Serial number ends in 072259.
Sent from my K00C using Tapatalk 4
Click to expand...
Click to collapse
I also tried turning power saver mode on and off and for me it seemed to improve the situation but not eliminate it. I am going to return the tablet and wait for the nexus 10.
Ugh, mine has been doing this, too. Can't believe there isn't a setting somewhere...
Mine is doing the same thing... glad that it's not just me, but this flickering is very annoying
Driving me nuts
I'm having the same problem and it's driving me nuts!
I'm quite convinced it's a software "feature" but currently there seems to be no way to turn it off?
It's one of those "Adjust brightness of the screen based on content" or "Changing LCD refresh rate and colors for power saving" but sadly it does it the wrong way around (This has been going on for a while now, manufacturers don't really get it). When there is a lot of bright content the brightness will rise and when there is mostly a dark screen it will fall.
Of course, this should happen exactly the other way around. When there is a lot of bright/white on my screen it should lower and when there is mostly black it should become brighter thus giving you more contrast but keeping the overall lux that comes off your screen the same...... My Intel graphics notebook does this too and it's very irritating. There they do it by manipulating the LCD screen and lowering the refresh rate and other tricks to save battery. First thing I turned off.
However way it goes though, you should be able to turn it off!
Quindor said:
I'm having the same problem and it's driving me nuts!
I'm quite convinced it's a software "feature" but currently there seems to be no way to turn it off?
It's one of those "Adjust brightness of the screen based on content" or "Changing LCD refresh rate and colors for power saving" but sadly it does it the wrong way around (This has been going on for a while now, manufacturers don't really get it). When there is a lot of bright content the brightness will rise and when there is mostly a dark screen it will fall.
Of course, this should happen exactly the other way around. When there is a lot of bright/white on my screen it should lower and when there is mostly black it should become brighter thus giving you more contrast but keeping the overall lux that comes off your screen the same...... My Intel graphics notebook does this too and it's very irritating. There they do it by manipulating the LCD screen and lowering the refresh rate and other tricks to save battery. First thing I turned off.
However way it goes though, you should be able to turn it off!
Click to expand...
Click to collapse
I'm having the same issue. I think it's the smart dimmer option Asus have used before but they forgot to include it in the Asus customised options. I'll have a dig through the ROM to see where it is stored.
I'm having this problem as well.
I have my brightness set to about 80%, Auto-Brightness Off, Power Save Off.
It is very annoying when reading magazines that have a lot of white background. My screen will be stable for minutes then, often on a touch, will change the screen brightness, seemingly by 5-20%.
I was just getting ready to return it, and thought I would check here to see of anyone else has this problem. Has any actually called Asus with this complaint? I would be interested to know if they see this as a hardware defect, software bug, or working as designed.
PS - I just placed a technical support request about this on the Asus Website. Here is my problem description:
Even with automatic brightness & power saving turned off, the brightness of the screen will change over time, often seemingly in response to a touch. (Reading Mode is Off as well.)
The period between changes can vary from several minutes to 30 seconds. It happens both while docked and undocked. It happens with apps and just at the launcher.
The amount of brightness change is 5-20% and it will often seem to step through some values before it stops at a particular one.
Given how fantastic looking the screen is, this unwanted fluctuation is particularly annoying.
I also own a TF201 and have not experienced this problem on that product.
Click to expand...
Click to collapse
sschlosnagle said:
I'm having this problem as well.
I have my brightness set to about 80%, Auto-Brightness Off, Power Save Off.
It is very annoying when reading magazines that have a lot of white background. My screen will be stable for minutes then, often on a touch, will change the screen brightness, seemingly by 5-20%.
I was just getting ready to return it, and thought I would check here to see of anyone else has this problem. Has any actually called Asus with this complaint? I would be interested to know if they see this as a hardware defect, software bug, or working as designed.
PS - I just placed a technical support request about this on the Asus Website. Here is my problem description:
Click to expand...
Click to collapse
I have this issue too but not a real biggie as the connection problems between dock and tablet.
Same problem!
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
Thank you very much for creating this topic, because I was worried for my tablet too!
---------- Post added at 11:55 AM ---------- Previous post was at 11:52 AM ----------
Snah001 said:
I have this issue too but not a real biggie as the connection problems between dock and tablet.
Click to expand...
Click to collapse
I heared a lot of people say I about this, but happily I seem to don't have it or I don't detect it. What is this dock problem about?
I suspect this is the same "smart dimming" feature that the 700 had.
improvius said:
I suspect this is the same "smart dimming" feature that the 700 had.
Click to expand...
Click to collapse
Yep me too and as soon as I root I'm going to see if the same fix will turn it off
There seems to be no way to disable this. Some believe it's the light sensor, but I've taped over mine with black electrical tape and tested and I don't see any difference in the behavior. Check our my Youtube video if you are a user who doesn't see the issue (look for threads in this same XDA forum).
I've finally been able to get someone at Asus to look into this and it's been sent to TW for review. I haven't heard anything back yet. I strongly recommend that other people who are annoyed by this (I find it tremendously distracting) to search on "asus escalation" which will bring up a special mailbox. Here is the link (although I do not know if the link will work for you). This should get looked at by someone with at least some ability beyond reading a script. If enough people do this, I think that they will fix it. Since you can temporarily override it by toggling smart saver on/off, it has to be fixable by software.
http://www.service.asus.com/#!escalation-mailbox/c1scx
derekk1 said:
There seems to be no way to disable this. Some believe it's the light sensor, but I've taped over mine with black electrical tape and tested and I don't see any difference in the behavior. Check our my Youtube video if you are a user who doesn't see the issue (look for threads in this same XDA forum).
I've finally been able to get someone at Asus to look into this and it's been sent to TW for review. I haven't heard anything back yet. I strongly recommend that other people who are annoyed by this (I find it tremendously distracting) to search on "asus escalation" which will bring up a special mailbox. Here is the link (although I do not know if the link will work for you). This should get looked at by someone with at least some ability beyond reading a script. If enough people do this, I think that they will fix it. Since you can temporarily override it by toggling smart saver on/off, it has to be fixable by software.
http://www.service.asus.com/#!escalation-mailbox/c1scx
Click to expand...
Click to collapse
I returned my tf701, waited for cyber Monday, and bought the Samsung note 2014 since the nexus 10 2 is so elusive. I put in an escalation request anyway and included a link to this thread in my complaint.
improvius said:
I suspect this is the same "smart dimming" feature that the 700 had.
Click to expand...
Click to collapse
I also saw this issue on my TF701. This seems a "feature" of Tegra SoC

proximity sensor issue?

Anyone else seem to have a problem with the ambient light/proximity sensor on their N6? I've noticed that a lot of times when i make calls, the screen won't shut off when i put the phone to my head... often with that resulting in my cheek touching something, and the person on the other end not being able to hear me. If i leave the phone at an angle against my ear so my cheek doesn't touch the screen, eventually the screen will shut off, but won't come on when i take the phone away from my ear, resulting in me having to press the power button to turn the screen back on.
Had that happen to me yesterday ... Rebooted and it hasn't happened today.
Sent from my Nexus 7 using Tapatalk
I'm having a issue now. Phone call comes in and screen stays on. I did a reboot, factory reset even installed custom ROM. It was working the other day. Anyway to calibrate this thing? Or do we have a bad sensor.
Also now my phone won't rotate screen.
Sent from my Nexus 6 using Tapatalk
Do any of you happen to have a screen protector on? As there have been some users that have been reporting issues with certain screen protectors. I believe most are tempered glass protectors that are the cause of the problems.
I took mine off and still nothing.
Sent from my Nexus 6 using Tapatalk
v4npro said:
I took mine off and still nothing.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Did you try going to settings , accessibility , power button ends call, toggle that on and off.
We own two new Nexus 6 devices that are rooted and decrypted. We have the same issue where the phone screen stays on during a call. Rebooting fixes for a short period (hours or so) but the problem comes back. Other threads show this to be an issue with other phones (nexus 5) with Lollipop. Not sure of a fix. These devices are only a few weeks old so it is not a dust issue.
Having the same issue that just suddenly started. Rebooting does not seem to help.
Happening here too. Frustrating.
My screen turns off when taking the phone to the ear but it doesn't turn on again after i take it away from my ear.
It's pretty bad on my phone. The screen turns on when I am on a call making the notification bar drop down. Also, the phone doesn't wake up when I pull the phone away from my fasce 80% of the time. When I am on a call the phone randomly vibrates like I am getting a notification and when I look I have nothing. With all of this going on, making phone calls on this device is a nightmare.
Restore clean wipe did nothing.
nexus 6
The below mentioned fix is for brand new Nexus 6.
Did you try going to settings , accessibility , power button ends call, toggle that on and off.
After completing the above mentioned step. Reboot your phone and try making a call. I hope the issue get resolved.
I tried this step on an unrooted phone, which was recieved just yesterday.
I got this fix from some other thread.
aditya2529 said:
The below mentioned fix is for brand new Nexus 6.
Did you try going to settings , accessibility , power button ends call, toggle that on and off.
After completing the above mentioned step. Reboot your phone and try making a call. I hope the issue get resolved.
I tried this step on an unrooted phone, which was recieved just yesterday.
I got this fix from some other thread.
Click to expand...
Click to collapse
I'm using an app a Dev created just for this issue and it's fixed.
Nexus 6
Krunk83 said:
I'm using an app a Dev created just for this issue and it's fixed.
Nexus 6
Click to expand...
Click to collapse
What app
Orzly works fine... It doesn't cover the sensor. The Slimwrap orange vinyl (leather) face was a problem for me, had to enlarge the cutout to get suitable performance. I believe the sensor is longer than it is wide, the opposite of the factory cutout? It frames the face of the phone nicely with this screen protector on and I didn't want to take it off. The 24mm added height changes the profile of the phone alot, it no longer rests on the speaker bars/guards. This must also have effected placing the wrap on as well. The larger cutout box for the sesnor is a detractor, but the sensor works 100%. This is good , as it is my intention to run nekid with this phone but its size precludes using a case with any of the pockets I currently own.
fazbender said:
Orzly works fine... It doesn't cover the sensor. The Slimwrap orange vinyl (leather) face was a problem for me, had to enlarge the cutout to get suitable performance. I believe the sensor is longer than it is wide, the opposite of the factory cutout? It frames the face of the phone nicely with this screen protector on and I didn't want to take it off. The 24mm added height changes the profile of the phone alot, it no longer rests on the speaker bars/guards. This must also have effected placing the wrap on as well. The larger cutout box for the sesnor is a detractor, but the sensor works 100%. This is good , as it is my intention to run nekid with this phone but its size precludes using a case with any of the pockets I currently own.
Click to expand...
Click to collapse
Thanks I was just having a crazy time trying to install the front, similar case (glass protector in front) and ended up cutting a hole for the proximity sensor about 2 times the factory height, everything (seems) normal now. I used this program to help make the minimum cut, and align correctly. Did you run into any issues with the thin left & right vertical part of the front cover? Mine seems to "wrap" around the glass protector, not sure if it will stay there though

Auto brightness working well for you guys?

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?
Click to expand...
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+
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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

Max brightness bugged, help me pls

I am experiencing automatic dimming of my screen when set to maximum. The big thing is Adaptative Brightness is Off. I also set Power Mode to High Performance to make sure power management would not dim. I even bought an app that supposedly cranck up brightness beyond system limits (did not work)
I first noticed this when taking pictures of my garden in bright daylight, the screen was dim and even going over the orange marker on the dial I still struggled to view the screen (sun was almost 90 degree angle).
However when I placed my hand over the screen I could see well but then I noticed a sensible dim. At first I thought it was some king of optical trick, so I tried to repeat the experiment in different conditions to the point that I would simply crank up brightness and have a strong light over my phone then I used a black sheet of paper just above sensors. If I take the sheet off the brightness ramp up a bit, if I put the sheet over the screen dims. And again no auto Adaptative Brightness is turned on neither Power Mode in save.
I guess this wasn't supposed to happen, if I want to ramp up brightness as much as I want I should be allowed and the system should not interfere with my preference? I don't need to justify my use to anyone but as a courtesy to those that are inclined to help me, here it is: I work a lot with gardening and construction all day, including strong daylight, and I need to take a lot of pictures for my work.
What can I do to squeeze this bit more brightness from my Note 9?
Thanks a lot.
felcas said:
I am experiencing automatic dimming of my screen when set to maximum. The big thing is Adaptative Brightness is Off. I also set Power Mode to High Performance to make sure power management would not dim. I even bought an app that supposedly cranck up brightness beyond system limits (did not work)
I first noticed this when taking pictures of my garden in bright daylight, the screen was dim and even going over the orange marker on the dial I still struggled to view the screen (sun was almost 90 degree angle).
However when I placed my hand over the screen I could see well but then I noticed a sensible dim. At first I thought it was some king of optical trick, so I tried to repeat the experiment in different conditions to the point that I would simply crank up brightness and have a strong light over my phone then I used a black sheet of paper just above sensors. If I take the sheet off the brightness ramp up a bit, if I put the sheet over the screen dims. And again no auto Adaptative Brightness is turned on neither Power Mode in save.
I guess this wasn't supposed to happen, if I want to ramp up brightness as much as I want I should be allowed and the system should not interfere with my preference? I don't need to justify my use to anyone but as a courtesy to those that are inclined to help me, here it is: I work a lot with gardening and construction all day, including strong daylight, and I need to take a lot of pictures for my work.
What can I do to squeeze this bit more brightness from my Note 9?
Thanks a lot.
Click to expand...
Click to collapse
Try the the twilight blue app filter. It works wonders with the bulb features on your phone
jd14771 said:
Do you have a screen protector? Could something be obstructing the sensor on top?
Click to expand...
Click to collapse
no screen protection at all

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