Adaptive brightness or sensor fault? - Google Pixel 2 Questions & Answers

Hi, I have a problem, I have set adaptive brightness and now even when it's completely dark my phone is bright as lightbulb. When I switch adaptive brightness to off and manually set brightness it is going much lower.
Appa show 69 lux all style time, sensor fault?
Does anybody of you have similar problem ?

Either the sensor is bad or there's an obstruction. Are you using a screen protector? Some have poor clarity which really messes with the ambient light sensor.

It looks like there is some problem with sensor itself or os, as sometimes it stuck and show constant value for example 0 or 50 etc, restarts didn't help so I have contacted EE and today I will receive new phone as replacement.

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Proximity and light sensor stops working

Hi all, after updating to Android L (5.0 and 5.0.1) I've noticed that the ambient and proximity sensor will stop working after a certain amount of time. The time appears to be random at the moment. It started off with the adaptive brightness not working correctly, it would always be near max brightness in the dark and minimum in bright light, and at some points it would just stop changing altogether. So I decided to get lux autobrightness, it works better than adaptive brightness in L, but it would also stop adjusting itself after awhile.
Then I noticed that sometimes during a phone call, the phone's screen will not turn off so at the moment I decided to check the sensor's value with an app when the auto brightness/proximity wasn't working anymore. Turns out that the sensors are all registering 0 values or not changing it's readings despite being in different light conditions.
A reboot fixes this but, it's really annoying having to reboot the phone once a day.
Anyone else experiencing this?
EDIT: nvm, found out that other people are experiencing this as well. Haven't been on xda for awhile and forgot how to use the search button

Ambient Light Sensor Issue with Idol 3 4.7"

I have my display set to automatically adjust brightness and pretty often the display goes haywire. The lighting I'm in won't change, but the display will suddenly become much brighter or dimmer than it was a moment before.
Is anyone else having this issue, or do I have a dud?
some here. screen brightnes going crazy before and after factory reset
I always use lux (paid) and now I have it on luma (camera source for reading the light). Works perfect!

Minimum brightness too bright

Hello! Me and my wife both got this phone at the same time from the same place, but hers goes to a much lower minimum brightness than mine.
Does anyone know of a way to lower the minimum brightness?
EDIT: Okay, i did some poking around in ADB, found the "current brightness" file in /sys/class/leds/lcd_backlight0/brightness. Both phones report a brightness value of 65 when manually set to minimum brightness. The 65 sounds to me like they could go lower, is there any way to change the values used for the brightness slider? Or the automatic brightness curve.
Why not just use the screen filter app? I'm using it on every device to make screen real dark.
Skickat från min Nokia 3110i
Screen filter apps can't lower the backlight, which means they all ruin the screen contrast. They do work all right on OLED screens though since the blacks are already black.
It can be fixed with a buildprop edit, MAYBE
Here are some steps you can take to help fix your issue with the brightness.
Please restart your phone. If restarting your phone does not work, perform the following steps:
- Check if the light sensor works properly. If the light sensor is blocked, the screen brightness may become abnormal.
- By default, your phone automatically adjusts screen brightness according to the ambient brightness to bring you an optimal visual experience.
- If you need to adjust the screen brightness manually, turn off the function and manual adjust the brightness.
- If you think that the screen color temperature is too cool or warm, adjust the color temperature.
- If the screen has experienced an external shock, the internal LCD may have been damaged, resulting in abnormal screen brightness or color. Please back up important data and take the receipt issued with your phone to an authorized Huawei service center for repair.
Another option you can do is to purchase one of our third-party tempered screen protectors on Amazon. (NS)
Sure seems like this phone has so many bugs.
Sent from my SM-N900T using XDA-Developers mobile app

Oneplus 6 auto brightness issue

When auto brightness is enabled and I'm viewing the phone in direct sunlight, the maximum brightness seems to change really quickly. It brightens and dims quickly, almost qausing a feeling of screenflicker.
With auto brightness off, the problem is non existent.
It only happens when the phone hits 100% brightness. Anyone noticed this. And is there a solution other than turning auto brightness off?
Yes I noticed this today just got mine today and sat out in sun with auto brightness on it was flashing like mad ,
Sent from my ONEPLUS A6003 using Tapatalk
For me autobrightness is useless. Simply too dark in all conditions. Also max brightness is not enough for when you have direct sun on the screen.
doctor78SI said:
For me autobrightness is useless. Simply too dark in all conditions. Also max brightness is not enough for when you have direct sun on the screen.
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I have noticed the same, it's usually too dark for my taste.. would be nice if you could config how dim it goes automatically.
O saw the flickering in sunlight as well. Probably a bug
I finally gave up and installed the Lux app. Hopefully they will solve the issue in the next updates.
Sent from my ONEPLUS A6003 using Tapatalk
You're all insane. This phone has the best auto brightness I've ever used. It's very responsive without changing so fast that it becomes an issue in flickering light conditions like walking past trees where sunlight filters through or something.
I have the same problem, yes.
OLED displays have two "maximum" brightnesses; the normal maximum, which is intended for full-time use, and High Brightness/Sunlight Mode, which maxes the pixel brightnesses out for temporary outdoors full-sunlight usage.
The OP6 might have the threshold for what it considers "full sunlight" set too high, which would cause a lot of flickering in the event that the phone isn't held perfectly still in sunlight because of the light sensor output dancing back and forth across the threshold.
There's probably no changing it until someone rolls out a custom kernel in which it can be disabled or tweaked, in the meantime you can find auto-brightness apps on the Play Store that let you set custom curves (note that this'll probably require root). Hopefully OnePlus will fix it in the stock kernel themselves, terrible auto-brightness can make or break a phone in my opinion : \
snaker445 said:
I finally gave up and installed the Lux app. Hopefully they will solve the issue in the next updates.
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I would not hold your breath. It was an issue on the 5t and not sorted during the time I had it.
Can't say I've noticed the issue on the 6 though with adaptive brightness mode enabled
Couldn't agree more autobrightness seems too dark on my op6. Under direct sunlight, I have to disable auto and full the bar myself..
Auto-Brightness is too dark for me too... Hope OnePlus will be updated this, or add the possibility to adjust the Auto-Brightness.
The minimum auto-brightness can be adjusted from the slider, it will still be auto increasing when needed but it won't go below your threshold.
I'm testing this for a few days and it's working perfect, the minimum was also to low for me initially.
I've tested the auto-brightness with a flashlight:
capactus said:
When auto brightness is enabled and I'm viewing the phone in direct sunlight, the maximum brightness seems to change really quickly. It brightens and dims quickly, almost qausing a feeling of screenflicker.
With auto brightness off, the problem is non existent.
It only happens when the phone hits 100% brightness. Anyone noticed this. And is there a solution other than turning auto brightness off?
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Click to collapse
EVERYONE WITH BRIGHTNESS ISSUE,
There are No problems with screen, it's flawless.. Although people dealing with auto brightness issue,should disable the night mode.. Cause when night mode is active, auto brightness tends to use more dark screen as dark as possible..
Regards.
herecomesmaggi said:
EVERYONE WITH BRIGHTNESS ISSUE,
There are No problems with screen, it's flawless.. Although people dealing with auto brightness issue,should disable the night mode.. Cause when night mode is active, auto brightness tends to use more dark screen as dark as possible..
Regards.
Click to expand...
Click to collapse
I never said I have problems with the screen. Auto brightness is causing issues at Max brightness.
Night mode is off. Thanks for your comment though.
capactus said:
I never said I have problems with the screen. Auto brightness is causing issues at Max brightness.
Night mode is off. Thanks for your comment though.
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Actually I like yellow tinted screen(warm colors) , for that I enabled night mode. Since then I was facing problems like too dark in direct sun on auto brightness. Too dark even in room. Today I accidentally turned off night mode while showing handset to my friends.. And voila brightness got up nd up nd up... I tried in direct sunlight, now I don't have any problem viewing my handset even after wearing shades..
If there is still problem in ur auto brightness then bro I strongly suggest u to compare ur handset with other op6 cause it could be a manufacturing defects... I heard a developer got flickering issues, he returned handset..
Regards.
TheNetwork said:
You're all insane. This phone has the best auto brightness I've ever used. It's very responsive without changing so fast that it becomes an issue in flickering light conditions like walking past trees where sunlight filters through or something.
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Click to collapse
Nope. Is bad
I have auto tightness issue also. Have not noticed flashing, but screen dims often. Even when using phone, and in a steady lighted area such as indoors.

Display Automatic brightness Not Working Anymore !

Hi People
The Display Automatic brightness Not Working Anymore !
the display brightness doesn't change automatically anymore what ever the light condition in the room was.
in a dark room or bright sun the brightness is the same and not changing.
I have wiped Cache Partition but also nothing happened.
any body have any solution or a fix other than hard reset ?
Recalibrate auto screen brightness since Android 9 update
Since Andriod 9, my HTC U11 auto screen brightness was not working properly. It kept resetting to an almost useless 9%. There is a recalibration solution posted for Samsung phones that also seems to have worked for my HTC U11. Good luck.
With auto brightness enabled, tape your Galaxy S8 and cover the two sensors that are to the left and to the right of the earpiece.
This will trick the device into thinking you’re in a pitch black room.
Next, switch off the auto brightness feature by bringing down the status bar and moving the brightness bar to the left. Make sure you’re still covering the sensors!
Next, quickly activate the auto brightness feature and then deactivate it again. Keep the sensors covered.
Next, take your Galaxy S8 to a bright lamp or light. Stop covering the light sensors.
Put the brightness on your device to the maximum setting, then switch the auto brightness feature back on.
Your Galaxy S8 will now have had it’s auto brightness sensors recalibrated so that they work more efficiently in dark light, bright light, and everything in between.
smartphonetics.com/samsung/calibrate-auto-brightness-on-samsung-galaxy-s8-and-galaxy-s8-plus/
one-option said:
Hi People
The Display Automatic brightness Not Working Anymore !
the display brightness doesn't change automatically anymore what ever the light condition in the room was.
in a dark room or bright sun the brightness is the same and not changing.
I have wiped Cache Partition but also nothing happened.
any body have any solution or a fix other than hard reset ?
Click to expand...
Click to collapse
one-option said:
Hi People
The Display Automatic brightness Not Working Anymore !
the display brightness doesn't change automatically anymore what ever the light condition in the room was.
in a dark room or bright sun the brightness is the same and not changing.
I have wiped Cache Partition but also nothing happened.
any body have any solution or a fix other than hard reset ?
Click to expand...
Click to collapse
You can try this, maybe work, it worked on mine HTC U11
https://www.theverge.com/2019/4/26/18516417/how-to-adjust-android-pie-adaptive-brightness-feature

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