Adaptive brightness

pob

My adaptive brightness switches itself off randomly and sets brightness to full. Anybody else with this problem?

bencebacsi

Dear pob,

Nobody has reported a such issue until now.
To rule out the possibility of an existing software error, I suggest you to flash your phone with SP Flash Tool, choosing the 'Firmware Upgrade' option in the flasher application. That process will completely rewrite the whole software content of your device. - You will lose your user data.
Link: http://community.umidigi.com/thread-3096-1-2.html

Regards,
Bence

darkshippo

I can confirm the adaptive brightness is buggy. It's wayy to sensitive that if you are in a dark room and you read a webpage. The light emitted screen reflects back to light sensor and it makes the screen go very bright. Then the phone thinks it's in a well lit enviroment and just dims the screen. It's does that over and over again.

TeddyBeers

In my case in bright and medium light is fine.

Problem starting in really low light - for eg. during the night using low energy night lamp.
Screen illumination is to dark. Have to change it manually every time.

Is there any way to adjust illumination without using 3rd party apps ?

Beatertech

No issues with this so far.

Couple of tests you could do.

1. turn off the adaptive brightness and set the phone brightness slider to the max.
2. turn on the adaptive brightness and then cover the top part of the phone by the camera.
3. you should see your phone react to different levels of light.

If you feel that your device is not working as it should, then re-flash the ROM and firmware and test again *with the latest ROM release.

Hope this helps, i am pretty sure you will resolve this issue.

TeddyBeers

\n\n

TeddyBeers replied at 2016-6-21 16:29
In my case in bright and medium light is fine.

Problem starting in really low light - for eg. durin ...

double post, to be deleted

TeddyBeers

Beatertech replied at 2016-6-21 16:40
No issues with this so far.

Couple of tests you could do.

I think I wasn't clear enough.
Adaptive brightness works as it should just just illuminance graph need to be adjusted. (lumens/light level)

There is a big step up/down in illumination while lighting level is between 0-10 lumens

Beatertech

TeddyBeers replied at 2016-6-21 19:07
I think I wasn't clear enough.
Adaptive brightness works as it should just just illuminance graph  ...

You could tryand calibrate the light sensor under the engineering mode on your phone

If you go tothe dialler and type *#*#3646633#*#* then swipe across 3 times to hardwaretesting scroll down to sensor then you will have 3 options choose thelight/proximity sensor and choose PS Calibration .

See if you cancalibrate or modify to how you would like it to work .. please note that it maybe worth doing a bit of reading on this or find another phone that you can seethese values with and change them accordingly.

Hope thishelps.

TeddyBeers

\n\nI've tried but I don't really see option I'm looking for.

I'm looking for settings like the one in CyanogenMOD.

What  it's need to be change is (it's just example)
Light level - illumination %
0lm - 1%
5lm - 2%
etc

Right now it seems to be like:
0lumens - 1%
5lumens - 10%

You can check this yourself:

Go to the room with really low light level, but with some sort of light source - little window etc.
Keep moving your phone a little.

You will notice that while light level in the room it's pretty much the same, screen illumination jumps from really low (lowest possible I think) to be to bright.

It's not device fault, or anything like that. It's just bad ROM settings.

Nexus 4 had the same issue with it's first android 4.2.2.
They have fixed this in android 4.4.4.

vin63

TeddyBeers replied at 2016-6-21 19:07
I think I wasn't clear enough.
Adaptive brightness works as it should just just illuminance graph  ...

I agree...this happens to me too.