• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Adaptive Brightness Really?

piginhat1963

piginhat1963

Lurker
My main issue with the Pixel 2 and Android 9 is that I'm constantly having to manually adjust the brightness as from what I can tell this so called adaptive brightness is not learning my pattern at all!

Anyone else have same issue?
 
I don't have 9 yet so I can't say if they've changed it, but adaptive brightness seems to bother some people. The biggest problem is the delay from when the ambient light changes to when the screen adjusts. That delay is deliberate, otherwise any small shadow or reflection crossing the front-facing camera would cause the screen to change. It would be adjusting constantly and pretty unusable.
 
Personally, no, I don't have a problem. I've usually turned off any automatic brightness, even when using a custom ROM which allows me to set my own levels, but actually I've found the adaptive brightness on 9 to work well enough that I leave it on. The only times I adjust it these days is when showing photos to my Mum, for whom it's better to turn the brightness up a bit (I do remember adjusting it a bit more when I first installed 9, but that was back in the developer previews anyway).

Now I do have a Pixel 2 rather than a 2XL, so there may be differences due to the hardware. But for me it works well enough that I rarely think about it.
 
Hadron said:
Personally, no, I don't have a problem. I've usually turned off any automatic brightness, even when using a custom ROM which allows me to set my own levels, but actually I've found the adaptive brightness on 9 to work well enough that I leave it on. The only times I adjust it these days is when showing photos to my Mum, for whom it's better to turn the brightness up a bit (I do remember adjusting it a bit more when I first installed 9, but that was back in the developer previews anyway).

Now I do have a Pixel 2 rather than a 2XL, so there may be differences due to the hardware. But for me it works well enough that I rarely think about it.
Click to expand...

At night it's too bright so I turn right down
especially in bed, waking up and turning screen on it needs to be very low light.

Then in the morning in bright light it remains at the low light level I set at night.

Been adjusting this for over a month and as yet it has not learnt any thing?
 
I don't use my phone much in completely dark rooms, to be honest. If I were to use it in bed I'd probably have a side light on. When I first installed 9 I made some adjustments in dimly-lit rooms which I don't seem to need now, but I may not push the range as far as you.

My personal example of Google claiming "learning" which simply didn't exist was the Google News app: after several months and clicking "fewer stories like this" on literally thousands of football articles my "personalised" feed would still be literally 50% football stories. In the end I decided that the "learning" element didn't exist, and the whole thing was some psychological experiment to see how long I would continue clicking a button which made no difference, and I just deleted the app.
 
piginhat1963 said:
Been adjusting this for over a month and as yet it has not learnt any thing?
Click to expand...
Smartphone adaptive lighting is not a 'learned behavior', it's based on an ambient light sensor on the front of your phone (commonly towards the top end).
Are your phones in cases? Perhaps it's a matter where the sensors are getting partially blocked if they've shifted out of place.
 
I still hold to the basic ambient light sensor as the focal point. No matter if there's a direct correlation between screen brightness and detected light,or some algorithm involved that adjusts itself to 'learned' situations, I cannot accept that there isn't some sort of sensor involved. Otherwise, in order for some kind of programming-only solution to work, one must do the same things in the same setting every day at the same time.
 
I have a case yes but would presume the light detection would work from the front screen when I'm viewing it.

I downloaded that app and the Light option reports 1.2lux
 
You'll need to check and make sure that the Light test reports appropriate values for changing ambient light. For instance, at my desk I see 71.9 lx in the light and 1.3 lx in the shade under my monitor. If the output changes according to the ambient brightness then that confirms that the sensor is working.
 
You must log in or register to reply here.
Back
Top Bottom