[Q] Light Sensor.. - Galaxy S II Q&A, Help & Troubleshooting

Hi,
My light sensor is disabled
I wanna know what is the function of light sensor
cuz i have a dark screen without the light sensor
so it's better to enable it?

waseem10 said:
Hi,
My light sensor is disabled
I wanna know what is the function of light sensor
cuz i have a dark screen without the light sensor
so it's better to enable it?
Click to expand...
Click to collapse
Usually, the light sensor is used for adapting the screen/display light/brightness in relation to the environment light/brightness.
At least when you have enabled auto-brightness in menu "Settings" > "Display" > "Auto-Brightness".
So, the screen brightness will be reduced in the darkness to safe battery power.
If you have disabled the light sensor, you should also disable auto-brightness and set a fixed birghtness level.
Good luck !

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Related

[Q] Light sensor on the X10?

Hello,
If I look in the sensors section of "Android System Info", it doesn't list a light sensor (I believe that the light sensor is used to dim the screen when it's dark). The thing is, I've seen the screen dim by itself before. If I put my hand on top of the phone (where the proximity sensor is located... I think...), the screen dims. If I remove my hand, the screen gets brighter.
Does the X10 have a light sensor or not? Is it possible that the light sensor is "hardwired" to the screen without "passing" through the OS to dim the screen?
The light sensor on my X10 is to the left of the earpiece. To the right are the proximity sensor and further right is the notification led.
argnom said:
Hello,
If I look in the sensors section of "Android System Info", it doesn't list a light sensor (I believe that the light sensor is used to dim the screen when it's dark). The thing is, I've seen the screen dim by itself before. If I put my hand on top of the phone (where the proximity sensor is located... I think...), the screen dims. If I remove my hand, the screen gets brighter.
Does the X10 have a light sensor or not? Is it possible that the light sensor is "hardwired" to the screen without "passing" through the OS to dim the screen?
Click to expand...
Click to collapse
Since you can disable it in the settings, i don't think it's hardwired.
sl1nk3 said:
Since you can disable it in the settings, i don't think it's hardwired.
Click to expand...
Click to collapse
Good point, I don't understand why android system info cannot see it though. Same goes for the service menu, it seems it's the only sensor in there that cannot be tested.
lft4ded said:
The light sensor on my X10 is to the left of the earpiece. To the right are the proximity sensor and further right is the notification led.
Click to expand...
Click to collapse
+1 .........................

[Q] light sensor and light sensor lock question

Main question: is the light sensor always on even if I turn off the "automatic brightness" in Display settings?
If the answer is no, I might have to reconsider the usage about light sensor lock.
(I thought the sensor is working at all time, so add the light sensor lock would not draing the battery faster)

[Q] Possible to speed up automatic brightness sensor

I use auto brightness and i notice when i turn my screen on there is a lag between when it reads the ambient light and adjusts the screen. Can this lag be adjusted or can the parameters be adjusted? I thought i read somewhere that they can but i cannot find it.

Oneplus X Sultancm13 Enable Ambient Display but Disable Screen Pulse Notification?

Hello all,
I was just wondering if there is a way to enable the beautiful ambient display since the 1+x 's proximity sensor is really responsive, but I dont like the screen pulsing for battery life and "pocket dial" reasons.
I would still like the proximity sensors to work when i wave my hand or take out of my pocket, but it would be great if i could disable the screen pulsing somehow..
Thanks
Should be under doze in settings.

Proximity sensor issue

Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Hello ! Yes! (sorry for my language I'm French).
Tonight, after charging my phone at 100%, I have seen a red little light in the '' capter '' a the right (for automatic luminosity I think). It was a big bug who during ~ 30 minutes. And I have lost 20% of battery, I think, cause to this bug.. Do you already have the bug today?
daddu97 said:
Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Click to expand...
Click to collapse
I've een it also sometimes but i've no idea what it is
me too,but i've noticed that only blinks when its recieveing data when changing from wifi to 4g and viceversa,when its done,it doesnt blink anymore.
Does anyone have any idea for this problem please ? :'(
daddu97 said:
Hello,
Has anyone noticed a promixity (maybe ambient light) sensor issue? Often (more in the dark) I can see a weak red light blinking right where there is the proximity sensor(it stays there if automatic brightness is on). I tried disabling and closing one app per time but it seems more like a software bug...
Anyone else?
Sony Xperia X F5121
Click to expand...
Click to collapse
@Mr High Tech @kistigun @kalel29
Are you kidding me guys? :laugh::laugh:
It's not a red light.... It's barely visible because it's an Infrared Sensor Infrared light is usually visible only in very dark conditions.
Hint that will make your day - when it's dark and you barely see it, try pointing a camera at it! It flashes white now, doesn't it.
Sebi673 said:
@Mr High Tech @kistigun @kalel29
Are you kidding me guys? :laugh::laugh:
It's not a red light.... It's barely visible because it's an Infrared Sensor Infrared light is usually visible only in very dark conditions.
Hint that will make your day - when it's dark and you barely see it, try pointing a camera at it! It flashes white now, doesn't it.
Click to expand...
Click to collapse
more than wanting to know what it is, i think they want to understand why; why does the proximity sensor stay on?
i had this question too, before updating to the latest firmware (.292). after that, it seems the "problem" doesn't occur anymore, but i'm not that sure. i'll have to double check.
however, do some of you use "Smart backlight control" feature?
carlo93 said:
more than wanting to know what it is, i think they want to understand why; why does the proximity sensor stay on?
i had this question too, before updating to the latest firmware (.292). after that, it seems the "problem" doesn't occur anymore, but i'm not that sure. i'll have to double check.
however, do some of you use "Smart backlight control" feature?
Click to expand...
Click to collapse
Smart backlight control makes use of the accelerometer of the phone. Keeps the screen on by detecting movement. Neat feature.
Smart call handling on the other hand uses the proximity sensor. Also the style cover preinstalled software. And of course Call handling uses the proximity sensor.
I'm using a modified version of Gravity Screen for pocket mode. Proximity sensor flashes all the time in order to turn the screen on and off when it's in or out of the pocket. Also I use the proximity sensor so that the screen won't turn on when it's in the pocket - like when a call comes in and I don't want to accidentally answer.
One thing you should know about the proximity sensor is that it uses a crazy low amount of power (0.18mA). Now the software that uses the sensor might have many wakelocks but we also need features so it's a small price to pay haha. Also if you're planing on using gravity screen (which is a cool app), you can always add a on/off widget.
There's really nothing to worry about - none of those features/apps I mentioned register on power consumption.

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