topic Re: automatic brightness in XPERIA archive

automatic brightness

EVO — Fri, 20 Jul 2012 22:06:49 GMT

Dear guys,

how to make light sensor in Xperia U to work automatically? i entered settings > display > brightness, and checked automatic brightness box, but i don't notice the screen dims or changes according to the differents light intensity?

kindly advice,

thanks in advance

Re: automatic brightness

pradeeprk4 — Sat, 21 Jul 2012 01:53:11 GMT

facing the same problem, Infact I was going to start a thread on the same issue.

It seems the phone doesn't have an ambient light sensor.

I used some hardware info apps and they all confirm it. I suggest you too to check once.

but sony's xperia u white paper claims that it has one.

Please comment on this, Xperia Support Team...

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 01:58:35 GMT

try to run some test
dial *#*#7378423#*#*>service test>ambient light sensor, cover the sensor or flash a light to it. does the values change?

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 01:59:21 GMT

you can observe the ambient light sensor more if the screen brightness is not set to max.

Re: automatic brightness

pradeeprk4 — Sat, 21 Jul 2012 02:06:42 GMT

It shows ony this

Ambient Light Sensor

value:0

do you have xperia u and see something different?

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 02:10:54 GMT

it does not change even if you put it on direct light?

Re: automatic brightness

pradeeprk4 — Sat, 21 Jul 2012 02:12:19 GMT

ya, too dark or too bright , it stays still.

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 02:17:07 GMT

well technically it would be a hardware glitch,

I would suggest to perform a factory data reset or repair with Sony update Service

if that does not help, Please send your phone to a sony service center near you.

http://www.sonymobile.com/global-en/support/contact-us/

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 02:18:07 GMT

did you put another screen protector? or is there something blocking the sensor?

Re: automatic brightness

pradeeprk4 — Sat, 21 Jul 2012 02:23:30 GMT

only the one which is provided by sony (in the box), not any other.

Re: automatic brightness

Sat, 21 Jul 2012 02:26:56 GMT

Mine is showing between 10 - 11

Re: automatic brightness

Arnab — Sat, 21 Jul 2012 03:32:27 GMT

dial *#*#7378423#*#*>service test>ambient light sensor

Then if it is showing 0 it means you are in relative dark, try taking the phone sensor, in the front of the phone, directly to a light and see the sensor reading when the light is shining on the sensor, as soon as you move it away, the sensor will show the new light readings, so the best way to do the test is with a flashlight directly on the sensor at the front.

My tests:

normal room: reading 1

in sunlight: reading 4

flashlight: reading 8

remember sensor is in the front top

Re: automatic brightness

EVO — Sat, 21 Jul 2012 08:49:55 GMT

i did try this to test my light sensor and it worked, it gave different values.

but when i use my phone in different light environments my screen's brightness seems the same as if light sensor doesn't change screen brightness?

Re: automatic brightness

MarlonUk1 — Sat, 21 Jul 2012 10:41:43 GMT

it's not really that noticeable when light changes, especially if you have set the brightness to the max

Re: automatic brightness

EVO — Sat, 21 Jul 2012 17:54:22 GMT

brightness is not to max, maybe average or less.

shouldn't light sensor adjust screen brightness according to ambient lights? it's not about notice, screen brightness doesn't change at all under any light intensity despit that "automatic brightness" box is checked. somebody with Xperia U has such issue? and question to Xperia Team

Re: automatic brightness

Arnab — Sat, 21 Jul 2012 18:38:43 GMT

brightness doesnt change in my mobile too. Its not a major issue but still I would love that to work. The sensor works fine though. It seems like a s/w issue or the change in light aint so much as to trigger a brightness change. My default brightness setting is pretty low, 20% to be xact

Re: automatic brightness

ghencea-RO — Mon, 23 Jul 2012 05:50:05 GMT

If the sensor shows you different values it should work. Try to see the screen in the sunlight and then move fast in a darker area and see if the brightness changes. Select a low brightness on that bar to make the difference more visible. If the selected brightness is also high then the difference won't be noticeable. If you can see the screen in the sunlight, then it works. And try the same without Automatic checked.

Re: automatic brightness

Arnab — Mon, 23 Jul 2012 06:15:34 GMT

The test works fine but it isnt working in the model, right? Just wait for the s/w release in early august or root or repair(SUS) your phone. I would suggest the waiting part. I could see my screen faintly in the sunlight, so maybe its working, maybe its not. Arnab

Re: automatic brightness

pradeeprk4 — Mon, 23 Jul 2012 14:24:41 GMT

my phone is acting little wierd. sensor test some times works(shows values other than 0) and sometimes doesn't(shows only 0 in any light).

and when it worked, if I select auto brightness, the brightness is going too(in sunlight) high or too low(in room). Infact lower than that can be set manuaaly(i.e 10%), and it was not difficult for me to notice it.

so it does not seem to be adjusting well to according to ambient light even if the sensor is working.

Re: automatic brightness

McSliver — Sat, 20 Oct 2012 20:59:18 GMT

ICS didn't resolve this issue to me.... Anyone else?