[Q] Light sensor on the X10? - XPERIA X10 Q&A, Help & Troubleshooting

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 .........................

Related

[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] Light Sensor..

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 !
Thread closed
Too many threads were created. Refer to this one.

[Q] Xperia Active questions

So I've used the search bar and google
there are 4 circles at top
1. Ambient Light sensor
2. LED notification lights
3. ???
4. Proximity Sensor
so whats in between the earpiece and proximity sensor
also why dont apps recognize the ALS? I've used android sensor box, androsensors and my android sensors but still nothing. Though auto brightness works. I know, I move my finger over it and the screen gets dim
z50j said:
So I've used the search bar and google
there are 4 circles at top
1. Ambient Light sensor
2. LED notification lights
3. ???
4. Proximity Sensor
so whats in between the earpiece and proximity sensor
also why dont apps recognize the ALS? I've used android sensor box, androsensors and my android sensors but still nothing. Though auto brightness works. I know, I move my finger over it and the screen gets dim
Click to expand...
Click to collapse
The last 2 sensors are for proximity i guess, cause even on my mini pro i have 2 circles for proximity. In the stock rom, it is never detected, its on by default. In roms like cm10, CM10.1 etc. you can choose whether to use it or not, change the different levels etc.
Well in mini pro its
Led, ambient sensor, camera, proximity.
Tbh, I think I have seen two dots instead of one for sensor. (Really hard to see)
Regards
N
mnishamk said:
Well in mini pro its
Led, ambient sensor, camera, proximity.
Tbh, I think I have seen two dots instead of one for sensor. (Really hard to see)
Regards
N
Click to expand...
Click to collapse
Yep there are two sensors for proximity.
why are there 2 sensors for proximity? using the sensor apps I've noticed that only that the right most works the 3rd one doesnt really do anything when i cover it. but it works so I'm fine with that
but how come the apps dont detect the ambient light sensor? that too is obviously working because the screen dims when i hover over it
Try using the service menu and see if it works there
Regards
N
mnishamk said:
Try using the service menu and see if it works there
Regards
N
Click to expand...
Click to collapse
I did, it doesnt

Xperia Ray - Proximity sensor

Hi all,
I have a couple of issues with the my proximity sensor:
1) When I put my Ray to sleep mode, sometimes the screen doesn't turn back on, it stays black until I give it 5-10 seconds before it can be turned back on with the Power/Home button
2) This issue is related to Jelly Dream rom only, most of the times, it feels as though the proximity sensor is always ON because when I hover my finger over the proximity sensor, the screen dims and as soon as I move my finger away from the sensor, the screen goes back to normal brightness level
Help will be appreciated
masteriori said:
Hi all,
I have a couple of issues with the my proximity sensor:
1) When I put my Ray to sleep mode, sometimes the screen doesn't turn back on, it stays black until I give it 5-10 seconds before it can be turned back on with the Power/Home button
2) This issue is related to Jelly Dream rom only, most of the times, it feels as though the proximity sensor is always ON because when I hover my finger over the proximity sensor, the screen dims and as soon as I move my finger away from the sensor, the screen goes back to normal brightness level
Help will be appreciated
Click to expand...
Click to collapse
Can't help you about first question, but about the second one - if the light dims when you move your finger close the place where the sensors are this is completely normal (light and proximity sensor are close to one another so you're probably blocking the light sensor and thus causing the phone the turn the brightness down).

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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