CameraLightSensor - Samsung Galaxy S20 FE Questions & Answers

Anyone having CameraLightSensor battery drain?
Edit: it is 4g Exynos model, latest firmware

I just checked and I do not see it on mine at all. T-mobile version.

No battery drain on mine either.

Possibly disable the face unlock, its going to save alot of battery for you.

coolmaster121 said:
Possibly disable the face unlock, its going to save alot of battery for you.
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Don't have it enabled, it seems it is auto brightness

Off topic: could you tell me what kind of SoT you're getting? There are no replies yet in the official thread and I'm interested in the Exynos version.

Pufanu said:
Off topic: could you tell me what kind of SoT you're getting? There are no replies yet in the official thread and I'm interested in the Exynos version.
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4 hours sot max

dzontra83 said:
4 hours sot max
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Ouch! That's on 120hz, I assume. I was half-expecting that. Thanks.

Pufanu said:
Ouch! That's on 120hz, I assume. I was half-expecting that. Thanks.
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Yup, will report tomorrow with auto brightness turned off, because today CameraLightSensor was running in the background for almost 9 hours.

dzontra83 said:
Yup, will report tomorrow with auto brightness turned off, because today CameraLightSensor was running in the background for almost 9 hours.
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That's definitely not right. Hope you get it sorted out.

Pufanu said:
That's definitely not right. Hope you get it sorted out.
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I know, don't know where to start, so first step is to disable auto brightness....

dzontra83 said:
I know, don't know where to start, so first step is to disable auto brightness....
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It definitely seems to be auto brightness, I turned it off, charged the phone to 100%, and today CameraLightSensor it not showing in the battery usage at all.

dzontra83 said:
Yup, will report tomorrow with auto brightness turned off, because today CameraLightSensor was running in the background for almost 9 hours.
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Same thing on my T-Mobile model - 3.1% over 9 hours. I have not checked my unlocked model, as its still in the box.
Have you noticed the 'ring" of pixels around the camera changing color to black when using the phone? I notice it mostly when browsing the web, or on a phone call.
Hard to describe what it is, but a "ring" about 5 px wide turns black or dark grey around the front camera just for a second. Is that the light sensor thing?
---------- Post added at 12:37 PM ---------- Previous post was at 12:27 PM ----------
Interesting - I read an article about samsung using the camera instead of a sensor in new phones to detect the ambient brightness. The phone will take a picture, adjust the brightness, then the picture is permanently deleted. I guess that flash of the ring around the camera is the phone doing that to see what the light levels are in the room.
I turned off auto brightness and that ring flashing has stopped.

fncd said:
Same thing on my T-Mobile model - 3.1% over 9 hours. I have not checked my unlocked model, as its still in the box.
Have you noticed the 'ring" of pixels around the camera changing color to black when using the phone? I notice it mostly when browsing the web, or on a phone call.
Hard to describe what it is, but a "ring" about 5 px wide turns black or dark grey around the front camera just for a second. Is that the light sensor thing?
---------- Post added at 12:37 PM ---------- Previous post was at 12:27 PM ----------
Interesting - I read an article about samsung using the camera instead of a sensor in new phones to detect the ambient brightness. The phone will take a picture, adjust the brightness, then the picture is permanently deleted. I guess that flash of the ring around the camera is the phone doing that to see what the light levels are in the room.
I turned off auto brightness and that ring flashing has stopped.
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Definitely when you turn off auto brightness, the CameraLightSensor is not working in the background. But it must be a software glitch, it should be active only when the screen is on, it shouldn't be active while the device is in sleep.

dzontra83 said:
Definitely when you turn off auto brightness, the CameraLightSensor is not working in the background. But it must be a software glitch, it should be active only when the screen is on, it shouldn't be active while the device is in sleep.
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I spoke too soon. Even with auto brightness turned off, the flashing ring of pixels around the camera still persist. ?
Edit: Sent in an error report along with two of them about the screen sensitivity issues.

Just checked my S20 FE 5G variant and it too has the CameraLightSensor draining at 2.8% for a total background usage of 8hrs and 28 minutes
(Snapdragon)

dzontra83 said:
It definitely seems to be auto brightness, I turned it off, charged the phone to 100%, and today CameraLightSensor it not showing in the battery usage at all.
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How many hours SOT after auto-brightness is turned off please?
My country will only have the 4G Exynos type too.

fncd said:
I spoke too soon. Even with auto brightness turned off, the flashing ring of pixels around the camera still persist.
Edit: Sent in an error report along with two of them about the screen sensitivity issues.
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Flashing ring of pixels around the camera???

ChildishSmef said:
Flashing ring of pixels around the camera???
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Yes - Whether on the home screen, in a call, or in an app, there is a perfect "ring" (if you will) about 3-5 pixels wide around the camera that goes black for a split second or so and then changes back to the color of whatever it was displaying (think background color of a chrome tab, phone call, etc). It's impossible to catch as it happens so quickly. It's almost as if a perfect circle is turning off and then back on. And it has happened on both of my S20 FE, with or without adaptive brightness turned on.
I don't think it's something that screen recorder will even capture since that doesn't show the camera cutout, but I'll try!
EDIT: So I made a screen recording - and I think it was just the troubleshooting I needed to figure out what the problem is (was). . . When recording, the screen never shuts off, so there is no need for Smart Stay to activate (the camera checks to see if you're looking @ the phone to stay on). . . As soon as I stopped screen recording, that ring of pixels turned off and back on as it has been doing. I turned off Smart Stay, and it hasn't happened in the past 10 minutes or so. . .
I wonder if those that are seeing the high CameraLightSensor usage have Smart Stay turned on? It's not on by default - you have to look for it in settings.

fncd said:
Yes - Whether on the home screen, in a call, or in an app, there is a perfect "ring" (if you will) about 3-5 pixels wide around the camera that goes black for a split second or so and then changes back to the color of whatever it was displaying (think background color of a chrome tab, phone call, etc). It's impossible to catch as it happens so quickly. It's almost as if a perfect circle is turning off and then back on. And it has happened on both of my S20 FE, with or without adaptive brightness turned on.
I don't think it's something that screen recorder will even capture since that doesn't show the camera cutout, but I'll try!
EDIT: So I made a screen recording - and I think it was just the troubleshooting I needed to figure out what the problem is (was). . . When recording, the screen never shuts off, so there is no need for Smart Stay to activate (the camera checks to see if you're looking @ the phone to stay on). . . As soon as I stopped screen recording, that ring of pixels turned off and back on as it has been doing. I turned off Smart Stay, and it hasn't happened in the past 10 minutes or so. . .
I wonder if those that are seeing the high CameraLightSensor usage have Smart Stay turned on? It's not on by default - you have to look for it in settings.
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I have smart stay off, accidentall touch protection off, face unlock off, and from today adaptive brightness off, and my CameraLightSensor is not working in the background when I turned it off. Auto brightness was definitely the culprit for me.

Related

[Q] What is the "Auto sleep"?

As the title says, what is it? I mean how does the auto function? couldn't find anything about it on XDA or the Owners Manual.
Stock rom, 1.28.401.7, attached a screenshot.
omar302 said:
As the title says, what is it? I mean how does the auto function? couldn't find anything about it on XDA or the Owners Manual.
Stock rom, 1.28.401.7, attached a screenshot.
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I'm guessing that it adjusts the timeout accordingly.
Like if you were to put it down (but face-up) it'll decrease the timeout down to 15 seconds or something like that. Whereas if you're holding the phone normally, it'd be something like one minute.
Probably just smart stay esque feature.
Quick check of camera to see if your looking at the phone. Not like this is a Samsung thing, there are apps in the play store that do this.
Yeah it's screen time out so if you set it for 1 minute the screen will stay on for 1 minute then shut down
Yeah its like smart stay, try waving your hand in front of the phone and not touch the phone, it wont sleep. Dont work very well as sometimes I lie phone down for a sec but as there is no movement it sleeps quickly.
omar302 said:
As the title says, what is it? I mean how does the auto function? couldn't find anything about it on XDA or the Owners Manual.
Stock rom, 1.28.401.7, attached a screenshot.
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Nice. I keep wondering why HTC doesn't advertise some of these features - Samsung keeps touting them but even though HTC has something similar, sometimes better and sometimes not, it isn't mentioned anywhere. They really need to up their marketing efforts.
Nekromantik said:
Yeah its like smart stay, try waving your hand in front of the phone and not touch the phone, it wont sleep. Dont work very well as sometimes I lie phone down for a sec but as there is no movement it sleeps quickly.
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are you sure or are you just trying to get people to wave there hands around like mad men
theres nothing on the web about that its just plain old screen off after how long you set it for:laugh:
jaythenut said:
are you sure or are you just trying to get people to wave there hands around like mad men
theres nothing on the web about that its just plain old screen off after how long you set it for:laugh:
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It is autosleep OR a time. So it's definitely not 1 minute. Will have to try this
I sent the question to HTC & today got this lame answer:
Please note that you can use the sleep mode in order to put the device in standby mode when you are not using the screen for a long time the screen will go in sleep mode " Standby" automatically
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After doing some testing, I have found the following pattern with "Auto sleep":
If the device is held vertical (holding the phone up) or at an angle, in other words, you are actually looking at the screen; the display will sleep in about 1 minute of not touching the display.
If the device, after use, is put on a table (horizontally), the display will sleep in about 15 seconds.
So it seems that "Auto sleep" uses the gyro sensor, not the Camera.
Sounds similar to Screeble. ...a must-have app IMO.
I think auto sleep uses the camera and the proximity sensor to determine if you're looking at the phone, because for down reason it doesn't work in a completely dark environment like a bedroom at night, even though I was looking at the phone dead on..... It's an interesting feature nonetheless
banksc said:
Sounds similar to Screeble. ...a must-have app IMO.
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No must-have anymore... with this auto sleep function built in. It's in HTC One X too with the 4.2.2 update.
---------- Post added at 11:56 AM ---------- Previous post was at 11:53 AM ----------
ryanaathome said:
I think auto sleep uses the camera and the proximity sensor to determine if you're looking at the phone, because for down reason it doesn't work in a completely dark environment like a bedroom at night, even though I was looking at the phone dead on..... It's an interesting feature nonetheless
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As stated before, it's probably using sensors to increase time-out, not to disable time-out entirely, like smart-stay does, probably using less energy then smart-stay.
webpatrick said:
No must-have anymore... with this auto sleep function built in. It's in HTC One X too with the 4.2.2 update.
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Will give it a try since it is one less app on the phone... I like that I could set up the angle for which it is activated both for portrait and landscape with Screeble. I don't control anything with the sleep function. Also, I get the impression the phone will still shut off at some point...doesn't with Screeble.
Answer
I was intrigued to know the answer myself. Not being able to find the answer, I tried the following on my phone:
I placed the phone horizontally on a table and left it there without touching the screen or moving it until the screen turned off. It took 1 minute for the screen to time out.
I placed the phone at an angle (approximately 45 degrees) and left it still without touching the screen or moving it until the screen turned off. Again, it took 1 minute for the screen to time out.
I grabbed the phone and moved it constantly without touching the screen. I keep doing this for over 2 minutes and the screen never timed out. I got bored, so I put the phone down and from that moment, it took 1 minute for the screen to time out. I tried this at different angles and I realized the angle doesn't really matter as long as the phone is in motion.
This made me to conclude the phone uses the the gyroscope when "auto sleep" is selected to determine when to turn off the screen.
I might be wrong but you can try this yourself. I hope it helps!
tchan said:
I was intrigued to know the answer myself. Not being able to find the answer, I tried the following on my phone:
I placed the phone horizontally on a table and left it there without touching the screen or moving it until the screen turned off. It took 1 minute for the screen to time out.
I placed the phone at an angle (approximately 45 degrees) and left it still without touching the screen or moving it until the screen turned off. Again, it took 1 minute for the screen to time out.
I grabbed the phone and moved it constantly without touching the screen. I keep doing this for over 2 minutes and the screen never timed out. I got bored, so I put the phone down and from that moment, it took 1 minute for the screen to time out. I tried this at different angles and I realized the angle doesn't really matter as long as the phone is in motion.
This made me to conclude the phone uses the the gyroscope when "auto sleep" is selected to determine when to turn off the screen.
I might be wrong but you can try this yourself. I hope it helps!
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Click to collapse
What rom version are you running? What you explained would explain why the phone does not sleep when I put it down in the car's cupholder, as long as the car is moving the phone would vibrate/shake & hence does not turn off the display. This is with the Android 4.3 updates (leaks & official 3.22 developer edition).
Previously, Android 4.1 & 4.2 roms, if the device was held vertical (holding the phone up) or at an angle, in other words, display would sleep in about 1 minute of not touching the display. If the device, after use, was put on a table (horizontally), the display would sleep in about 15 seconds.
omar302 said:
What rom version are you running? What you explained would explain why the phone does not sleep when I put it down in the car's cupholder, as long as the car is moving the phone would vibrate/shake & hence does not turn off the display. This is with the Android 4.3 updates (leaks & official 3.22 developer edition).
Previously, Android 4.1 & 4.2 roms, if the device was held vertical (holding the phone up) or at an angle, in other words, display would sleep in about 1 minute of not touching the display. If the device, after use, was put on a table (horizontally), the display would sleep in about 15 seconds.
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I'm using CleanRom 6 with Android 4.3. Now that you mention it, I realize I hadn't noticed this on 4.1 and 4.2. I use Pandora all the time. I started wondering when my phone would stay up the whole time I was driving. I never had this issue with 4.1 and 4.2. Good to know!
tchan said:
I'm using CleanRom 6 with Android 4.3. Now that you mention it, I realize I hadn't noticed this on 4.1 and 4.2. I use Pandora all the time. I started wondering when my phone would stay up the whole time I was driving. I never had this issue with 4.1 and 4.2. Good to know!
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Incertcoin (on SVN R111) now has the auto sleep working like before, 1 minute if held upright, or 15 seconds if placed on a table. I think @baadnewz used the "SmartDim.apk" from an older rom that before auto sleep changed .
omar302 said:
Incertcoin (on SVN R111) now has the auto sleep working like before, 1 minute if held upright, or 15 seconds if placed on a table. I think @baadnewz used the "SmartDim.apk" from an older rom that before auto sleep changed .
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yes i used the 4.2.2 base one because i didn't have time to properly debug the current one and fix, but so far using the old one doesn't break anything it just fixes the issue. credits are due to @yxtl he had the issue and stress him enough to make trial and error .
I believe it uses the gyro/motion sensors to adjust the timeout...if I have my HTC One docked in my car with auto sleep enabled, it will never time out the screen, unless I come to a light and stop...but the motion of the car actually on the road is enough to keep it alive.
Cheers
j
I wish HTC provided some kind of documentation for this...

Auto brightness.

Anyone here turn off auto bright, set to max, and see it is still running?
jpwhre said:
Anyone here turn off auto bright, set to max, and see it is still running?
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Should be a little arrow at the end of the slider and click that and turn off some settings. I thought I had turned mine off as well til I fooled with the setting. Now I'm good.
Goat1378 said:
Should be a little arrow at the end of the slider and click that and turn off some settings. I thought I had turned mine off as well til I fooled with the setting. Now I'm good.
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I'm not seeing any arrow.
Was outside today and noticed screen would light up a bit and back down while under tree. So I tested by putting hand over sensor. Inside it doesn't change no matter how light or dark the room
jpwhre said:
I'm not seeing any arrow.
Was outside today and noticed screen would light up a bit and back down while under tree. So I tested by putting hand over sensor. Inside it doesn't change no matter how light or dark the room
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Yeah I was talking about in the drop down. Maybe turn the brightness down a bit instead of full brightness?
jpwhre said:
I'm not seeing any arrow.
Was outside today and noticed screen would light up a bit and back down while under tree. So I tested by putting hand over sensor. Inside it doesn't change no matter how light or dark the room
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Maybe turn auto on then off and reboot your device.
---------- Post added at 02:26 PM ---------- Previous post was at 02:17 PM ----------
Lol wait I think I was reading it wrong sorry. I was under the impression you wanted it to not get brighter.
Goat1378 said:
Maybe turn auto on then off and reboot your device.
---------- Post added at 02:26 PM ---------- Previous post was at 02:17 PM ----------
Lol wait I think I was reading it wrong sorry. I was under the impression you wanted it to not get brighter.
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I don't do well with dim light set, even in a dark room. Puts a strain on my eyes. Always full brought. Might have something to do with note 7 mess, not sure. This is my first non htc device. Just used to all the way up, being all the way up. Brightness doesn't change indoor at any light levels. But this does in brought sunlight, and I put a flashlight into sensor and it got brighter. If it is available, I want it all the way up, no holding back.
Also used to having a dead battery by 1-2pm, but with this device, 10pm I'm looking at 40-60% and have been using it more than old device. Of course, to me, that is mind blowing. I've seen reviews complaining about poor battery quality. They should get a htc one m9.
jpwhre said:
I don't do well with dim light set, even in a dark room. Puts a strain on my eyes. Always full brought. Might have something to do with note 7 mess, not sure. This is my first non htc device. Just used to all the way up, being all the way up. Brightness doesn't change indoor at any light levels. But this does in brought sunlight, and I put a flashlight into sensor and it got brighter. If it is available, I want it all the way up, no holding back.
Also used to having a dead battery by 1-2pm, but with this device, 10pm I'm looking at 40-60% and have been using it more than old device. Of course, to me, that is mind blowing. I've seen reviews complaining about poor battery quality. They should get a htc one m9.
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Yeah the battery life is definitely better atm. Im not doing too bad.Hopefully it stays that way.
Has anyone found a solution for this? It drives me mad. I also want 100% full brightness at all times. My auto-brightness is also turned of as well as Adaptive settings under Display yet the brightness still adjust when moving in and out of brightly lit rooms or in to the sunlight and back in to shade.
I have been searching all around to find an answer and everyone thinks that I am just talking about the Auto-Brightness, it seems to be an extra "feature" and I want it disabled.
Let me know.
Thank you

The note 8 sun mode kicks in even with auto brightness turned off

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:
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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.
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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.
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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.
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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.

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+
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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.
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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
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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

Ambient Display / Lock Screen Settings

I've chosen that the ambient display should light up whenever I'm near the phone. However, it stays on for about 10 mins even though I'm not near it. Sometimes it just stays off even though I'm nearby and even lifting up the phone. What settings should I use?
I would test that the proximity sensor is working. Try using the Pokémon wallpaper or app to see if it recognises that you are near and waving your hand. I only say this as my first pixel had a faulty sensor and I had to return it. If yours is too it might explain why it isn't working.
narse said:
I would test that the proximity sensor is working. Try using the Pokémon wallpaper or app to see if it recognises that you are near and waving your hand. I only say this as my first pixel had a faulty sensor and I had to return it. If yours is too it might explain why it isn't working.
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Pokémon reacts fine and proximity sensor works just fine.
rasmusj said:
I've chosen that the ambient display should light up whenever I'm near the phone. However, it stays on for about 10 mins even though I'm not near it. Sometimes it just stays off even though I'm nearby and even lifting up the phone. What settings should I use?
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The same here. I changed the Idle Lock Screen to OFF and let the other settings ON, this works better for me.
rasmusj said:
I've chosen that the ambient display should light up whenever I'm near the phone. However, it stays on for about 10 mins even though I'm not near it. Sometimes it just stays off even though I'm nearby and even lifting up the phone. What settings should I use?
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Do you use the naptime and have Android battery saver enables?
sruel3216 said:
Do you use the naptime and have Android battery saver enables?
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No I haven't if you mean DND. Sometimes also after a restart the phone also needs to cycle the power button.
rasmusj said:
I've chosen that the ambient display should light up whenever I'm near the phone. However, it stays on for about 10 mins even though I'm not near it. Sometimes it just stays off even though I'm nearby and even lifting up the phone. What settings should I use?
Click to expand...
Click to collapse
Check your screen timeout settings in settings/display and change it to whatever you want, like maybe it's set to 10 minutes so set it to less minutes or disable completely.
Screen timeout is set to 1 minute and tried to change it to 2 mins. With same result. Weird ?

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