Adaptive Brightness Issue - Samsung Galaxy Note 9 Questions & Answers

I've had this weird glitch with adaptive brightness and it seems to happen occasionally. When adaptive brightness is enabled the brightness get's set to 70% ( Estimate ) This doesn't happen all time I would say once a day. When I try and lower the brightness it will not get lowered until I turn adaptive brightness off. The only way I can get adaptive brightness to work correctly is when I power cycle the device. At first I thought it was the light sensor was malfunctioning, but did a test and it seems to be functioning properly.
Things that I have tried:
- *#0*# then went to Sensor then light senor. Confirmed that the sensor is working
- I also cleared data in device care via settings > apps
- Wiped cache partition via recovery
Any ideas? wiping the device is a last resort

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dia_naji said:
I've had this weird glitch with adaptive brightness and it seems to happen occasionally. When adaptive brightness is enabled the brightness get's set to 70% ( Estimate ) This doesn't happen all time I would say once a day. When I try and lower the brightness it will not get lowered until I turn adaptive brightness off. The only way I can get adaptive brightness to work correctly is when I power cycle the device. At first I thought it was the light sensor was malfunctioning, but did a test and it seems to be functioning properly.
Things that I have tried:
- *#0*# then went to Sensor then light senor. Confirmed that the sensor is working
- I also cleared data in device care via settings > apps
- Wiped cache partition via recovery
Any ideas? wiping the device is a last resort
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The Twilight blue filter works wonders with adaptive brightness on your phone. I love it.

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[Q] Light Sensor disabled when display brightness too low?

So I just got Tasker and I've been playing around with the light sensor and I've noticed something strange. If I set the display brightness is below 12% (12% is the lowest brightness setting in display settings), the light sensor stops working. Has anyone else noticed this?
It would be nice to be able to set the display brightness to 0% to save battery and still be able to use the light sensor. I'm running Perception 10.1 with glitterballs OC/UV kernel.
(I'm using Extended Controls to set and see the brightness %)
Dc5e said:
So I just got Tasker and I've been playing around with the light sensor and I've noticed something strange. If I set the display brightness is below 12% (12% is the lowest brightness setting in display settings), the light sensor stops working. Has anyone else noticed this?
It would be nice to be able to set the display brightness to 0% to save battery and still be able to use the light sensor. I'm running Perception 10.1 with glitterballs OC/UV kernel.
(I'm using Extended Controls to set and see the brightness %)
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The lowest I could go is 8% using brightness level widget. If I am not wrong, 0% would be screen off. U could use "screen filter" app to further reduce brightness at night so it does not strain eyes. This lets u go as dark as u want, even upto literally where u cannot see anything on screen.

LED brightness

I've noticed the LED brightness varies. I like my brightness to the max. I did notice one day that once the Power Saving is enabled, the LED gets dimmer. I have the Power Saving feature to turn on only when it reaches 20%. Anyways, most of the time I barely hit that mark before I charge it up again. I notice that sometimes I will have a very bright LED notification and other times it's not as bright. Is there any way to force it to be bright all the times (except when Power Saving kicks in of course)? Auto brightness on the screen is off by the way. Not sure if that would affect the LED brightness but it's off.
I am pretty sure the notification LED is also controlled by screen brightness. That way you don't get blinded at night by it. Also just so you know with auto turned off, even at full brightness you will have issues in sunlight. If you set it to auto, in sunlight you will get about 30% more brightness then you would just set at max.
Solarenemy68 said:
I am pretty sure the notification LED is also controlled by screen brightness. That way you don't get blinded at night by it. Also just so you know with auto turned off, even at full brightness you will have issues in sunlight. If you set it to auto, in sunlight you will get about 30% more brightness then you would just set at max.
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I could understand that if the auto brightness was enabled, but it's not and the LED brightness fluctuates.

active display flicking .

this issue happen when ever i check adaptive brightness and go from a lighted room to dark room it happens fast and only one time
uncheck adaptive brightness and the problem goes away ! does this happen to all droid turbo users, maybe the issue is how fast is brightness sensor.

Full Brightness is actually 96%

Can anyone also confirm this please? If you go to settings > Display > Uncheck "Auto" brightness setting > set the slider all the way to 100%. Then, go to Settings again > Battery > Optimize battery usage. Let it analyze and then read the first row. Does it also say "Screen brightness set to 96%, set it to auto to save power?".
On my previous P10 LITE, it says "Screen brightness set to 100%, set it to auto to save power". It's either a bug or some weird setting I don't know of that can let you select full brightness.
Show's 96% for me too.
Weird, but makes no difference to anything!
I was thinking that the phone never actually goes to 100% brightness and it might make a difference in very bright places. We can't find out for sure if this phone has a locked brightness for battery saving purposes or if it's some sort of bug. I've emailed them but I don't have high hopes of receiving an answer.
Ok, so I received an answer from Huawei. They said that if I turn off the Auto check box and turn the slider all the way up, it is at maximum brightness. I am not sure if they understood what I meant but that wouldn't be the first time .
Also, on a side note, they mentioned that if I use apps with white background, the brightness changes automatically in order to improve battery life. I thought it only did this when there was bright light outside. The strange thing is that this in-app brightness fluctuation happens even if I uncheck the auto setting, but only when I use a custom brightness setting and not full brightness.
Such a strange feature, I guess the "disable" option nowadays means only what they want it to mean...

Question [CLOSED]Manual brightness fluctuations

Has anyone had this problem and found a fix?
I've manually set the brightness of my Zenfone 8 to about 90%. Occasionally when I open the phone it has been reset to a very low value and is difficult to see.
Adaptive brightness is off. Low brightness DC dimming is off. Night light is off,

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