topic Re: smart backlight control problem in Z Series

smart backlight control problem

narsimelus — Thu, 30 Oct 2014 15:16:38 GMT

I'm using Xperia Z2 for 2,5 months and its smart backlight control is not working generally. I use "adopt to lighting conditions" for brightness (i'm writing this because it's suggested in an old post), i activated smart backlight control from the beginning and... No, it's not working.

I open a photograph and stare at it for a while. My "sleep" starts in 30 seconds and although i directly look at screen, it starts. The screen turns off. No smart backlight thing.

Now, am i missing something or is there a situation that Sony could not handle this property? Before this one, i used Samsung S2 and i know smart backlight control is a software property (in Android 2.3.5 there were no "smart backlight" in this phone, but with Android 4.1 it was ok). Then, what is the reason of this problem?

Thanks.

Re: smart backlight control problem

Rickard — Thu, 30 Oct 2014 15:50:17 GMT

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

Sorry to hear that the smart backlight is not working.

Are you holding your phone when you try this. Smart backlight control works when your holding the phone in your hand.

Re: smart backlight control problem

narsimelus — Thu, 30 Oct 2014 17:26:31 GMT

Hi again,

Yes, i'm holding the phone in my hand while looking at it directly. Is this not general problem? What should i do for this, if it's only for me?

Re: smart backlight control problem

BeadyEye — Thu, 30 Oct 2014 18:14:12 GMT

I have the same issue. Where I do notice it works is when I play a YouTube song and put the phone screen down, the screen turns off within 5 seconds. Or maybe that's a different setting that affects that.

Re: smart backlight control problem

Rickard — Fri, 31 Oct 2014 09:12:53 GMT

It works fine when i test it here. I've tested it in several units so i'm not sure what causes it.
From what i've been able to find when testing here it doesn't rely on the camera but movement. Does the accelerometer and gyroscope work in your phone if you test them from the service menu? To access that, dial *#*#7378423#*#* and go to Service tests.

Re: smart backlight control problem

narsimelus — Fri, 31 Oct 2014 14:23:21 GMT

Interestingly, i never tried the movement for smart backlight. I hold it tightly, i look at it directly but... With movement it seems as it's working.

Still i have one question: Before turning off the screen completely (sleep mode) screen light gets decreased as you know. At that time if i shake the phone, it does not get affacted from that movement. Is it normal?

Re: smart backlight control problem

Rickard — Fri, 31 Oct 2014 14:33:45 GMT

Glad that we could solve the issue

It's the same in my device. If i hold it very still and it starts to dim down, movement will not keep it active.
But you must have really steady hands. I find it very sensitive and only slight movement will keep it active. I don't need to shake it or anything like that.

Re: smart backlight control problem

narsimelus — Fri, 31 Oct 2014 15:12:17 GMT

Because while reading long paragraphs i keep it motionless

I hope in Android Lollipop version this feature becomes better. If you can carry my message the developer team, they can do that.

Anyway, for now it's ok. Thanks a lot for your help.

Re: smart backlight control problem

Rickard — Fri, 31 Oct 2014 15:58:11 GMT

I'll forward this as feedback internally

Re: smart backlight control problem

hedrox87 — Wed, 05 Nov 2014 18:31:15 GMT

Yes... I had the same problem in my z2... welll shaking hand helps in fact, but it's hard to read long meils when your moving the screen around to make gyroscope work. I really thought that it uses front camera to follow the eyes, which would be I guess better, or using face recognition when its in our palm.

Re: smart backlight control problem

minus28 — Fri, 21 Jul 2017 06:41:48 GMT

I'm reading this in 2017 on an x compact running Nougat and the problem is still exactly the same, there has been zero development by Sony on this problem. If you hold the phone normally in your hand as you read, the screen just times out and switches off. As mentioned here, even going right back to a Samsung galaxy s2 you get a better solution to this!

Re: smart backlight control problem

Jawtisjawtis — Sat, 29 Dec 2018 11:25:39 GMT

I got this problem after updating my xz premium to android 9

Re: smart backlight control problem

mr_max82 — Thu, 10 Jan 2019 15:55:51 GMT

I also have this problem after updating to android 9. And yes, I also have xz premium. Problem occures very often, and the situation is way worse when i have my phone in car holder and im driving.