Develop Bugs

[Q] Proximity sensor calibration

I am having an issue with my proximity sensor and believe it may be some sort of calibration issue. It works (ie when I am in calls, if I cover it with my finger, it shuts off the screen) but the sensitivity has become very poor. I've had the phone since the day it was released and the proximity sensor had no trouble reflecting off my head and keeping the screen off during calls. Over the last few months I've noticed I started hitting buttons with my ear during calls because the screen is not shutting down. It seems like the sensitivity has decreased by some fixed amount in the last few months. It is very annoying because I keep accidentally hanging up on people or hitting the hold call button while I am talking.
The only two things I thought it could be would be either the sensor needs to be calibrated or possibly the sensor is going bad. I'm running the cyanogen 7 nightlies but have also tried reverting to some of the more stable RCs and still had the issue. I will try going back to a t-mobile rom tonight to see if that helps.
Has anyone else experienced this? Or does anyone know how to re-calibrate the sensor?

z test from market calibrates (im pretty sure)

smokeuout said:
z test from market calibrates (im pretty sure)
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Click to collapse
I gave it a shot, but I didn't see anything for calibrating the proxy sensor in that app.
I did however do a test using the camera on my transformer and compared the intensity of the proxy sensor LED to that on other phones. It appears as if mine is very dim and barely blinks. I think the infrared LED is burning out or the circuit that supplies it is not putting out the correct power.
Has anyone ever tried replacing a bad proxy LED before?

try sucking over the surface with a vaccum...i know it sounds crazy but its fixed alot of proxy sensors

smokeuout said:
try sucking over the surface with a vaccum...i know it sounds crazy but its fixed alot of proxy sensors
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Click to collapse
That, or use one of those compressed-air cans for cleaning stuff and blow it into the speaker hole towards the proximity sensor (to the left of the speaker hole.) The proximity sensor seems very sensitive to dust particles.

You haven't installed or changed screen protectors recently, by any chance? Those have been known to mess up the sensor. Also, make sure the protector or glass is nice and clean in the area of the sensor.

Thanks for all the great advice! I'm going to give the vacuum and air can a shot.
Oh and to answer redpoint, I haven't installed any screen protectors on this phone ever, but thanks for the advice.

My GF's Vision behaves the same...
Still looking for a calibration tool, i found only one, but that don't work.
Also tried to "clean" the sensor
I think we have to return it to htc...

Same problem with my DZ since I put Virtuous G Lite on it. Did you guys find a solution for your proximity sensor ?
Cleaning or software ?

cri-cri16 said:
Same problem with my DZ since I put Virtuous G Lite on it. Did you guys find a solution for your proximity sensor ?
Cleaning or software ?
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Click to collapse
I am having the same problem. I keep hitting the hold button. Any fixes?

Light sensor slow to respond to change

Has anyone noticed how slow the light sensor is at picking up changes in lighting conditions? Sometimes I have to turn off the phone and turn it back on for the sensor to recognize light change faster. Or wait more than few seconds for it to automatically pick up the change. I have a HD7 and Titan neither are that slow to respond to light change. It happens pretty much instantly. As well, the device slows down (you can tell by scrolling the home screen) when the screen brightness is adjusting. Is it just me?

Yeah, I have seen it too. I notice it from being inside and then going outside and it takes a bit to adjust. Slower then my Focus was but its ok.

cwiley2566 said:
Yeah, I have seen it too. I notice it from being inside and then going outside and it takes a bit to adjust. Slower then my Focus was but its ok.
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Click to collapse
Ok, so I'm not going crazy. And yeah, going from inside to outside (or vice versa) is when you really notice it. It's ok, but man I hope they at least try to fix it as I'm in and out all day

Ditto on that.

kwill said:
Ok, so I'm not going crazy. And yeah, going from inside to outside (or vice versa) is when you really notice it. It's ok, but man I hope they at least try to fix it as I'm in and out all day
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Yeah...I see it too....but good luck on fixing that....I doubt this would make the limited fix list. But fingers are crossed.

Speaking of the light sensor. Does anyone know where it is? I know where the prox sensor is located, but not the light sensor. Also, not test for it in Diagnostics. Is there something built into the screen that we don't know about.
Sent from my Lumia 900 using Board Express

It's in the front by the ff camera.

jimski said:
Speaking of the light sensor. Does anyone know where it is? I know where the prox sensor is located, but not the light sensor. Also, not test for it in Diagnostics. Is there something built into the screen that we don't know about.
Sent from my Lumia 900 using Board Express
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Click to collapse
It's immediately adjacent the proximity sensor, near the FFC. There is a test for it in diagnostics as well. It's called "ALS" and reports the current ambient light in mlx.

Thanks. Didn't notice that ALS test. I have tried covering the FFC area without any screen response. But the test does react to light changes. Something else to play with.
Sent from my Lumia 900 using Board Express

Mine is slow as well so it seems it's 'by design'

jimski said:
Thanks. Didn't notice that ALS test. I have tried covering the FFC area without any screen response. But the test does react to light changes. Something else to play with.
Sent from my Lumia 900 using Board Express
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Noticed the same. Test reacts perfectly fine. So what lies between the sensor detecting change and the screen adjusting brightness?

Really? My Lumia 900 usually takes no longer than 5 seconds to adjust...

Sensitive Light Sensor?

Hello, I been noticing my auto brightness changing up and down too many times, so I went in phone test setting (*#0*#) under light sensor. I see my lux changing from 103 to 1700 even with slightest change of angle. I'm sure it will vary depending on room light conditions, but I was wondering if your note 2 does this as well?
Thanks for your time.
Sent from my SGH-T889 using Tapatalk 2

zen0s said:
Hello, I been noticing my auto brightness changing up and down too many times, so I went in phone test setting (*#0*#) under light sensor. I see my lux changing from 103 to 1700 even with slightest change of angle. I'm sure it will vary depending on room light conditions, but I was wondering if your note 2 does this as well?
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Click to collapse
Mine is very smooth and goes up and down with angle or turning the local dimmer light up and down. Yours seems to be broken.

Z5 Premium too dim on sunlight viewing - Overheating?

Hi all, i have experienced something strange with my Z5P. When i take a walk on bright sunny day, the screen got bright for about 2-3 minutes, but then it would go down to the dimmest state without any info. I tried to push it up manually but it won't do. so i decided to pocket it for a while and when i'm in shade, i turn it on again and it goes back to normal.. So my question is, is this normal due to 4K display? Or is it a bug in Marshmallow? Because it really makes me hard to read at outdoor after a while. The screen surface sure is hot though.. Anybody have the same experience?

I am still on Lollipop and have the same issue

hansip87 said:
Hi all, i have experienced something strange with my Z5P. When i take a walk on bright sunny day, the screen got bright for about 2-3 minutes, but then it would go down to the dimmest state without any info. I tried to push it up manually but it won't do. so i decided to pocket it for a while and when i'm in shade, i turn it on again and it goes back to normal.. So my question is, is this normal due to 4K display? Or is it a bug in Marshmallow? Because it really makes me hard to read at outdoor after a while. The screen surface sure is hot though.. Anybody have the same experience?
Click to expand...
Click to collapse
I think this was happening in the other z series like the z1 too. But I think this because the phone would heat up and thus, the phone tries to cool down by doing that. I think there was a fix in the z1 phones but I'm not sure.
Sent from my Sony E6883 using XDA Labs

Ashray_Vk said:
I think this was happening in the other z series like the z1 too. But I think this because the phone would heat up and thus, the phone tries to cool down by doing that. I think there was a fix in the z1 phones but I'm not sure.
Sent from my Sony E6883 using XDA Labs
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Click to collapse
Hmm well my first XZU doesn't have any issue like that, but then again it's a big screen though.. So it's a shame if such issue happens due to heat..

Same thing has been happening to me too. Very very disappointed.
How can we fix it?

thihaz said:
Same thing has been happening to me too. Very very disappointed.
How can we fix it?
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Click to collapse
Don't go out into the bright sunlight! Stay in the shade. Having said that, I'm in the sun right now and I have no problems...
Sent from my SGP311 using XDA Free mobile app

guhvanoh said:
Don't go out into the bright sunlight! Stay in the shade. Having said that, I'm in the sun right now and I have no problems...
Sent from my SGP311 using XDA Free mobile app
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I only go into bright sunlight during lunch time when i enjoy the movie while having my meal.
The display is almost black. My previous phones LG G4, ZUK Z1, Moto X Style, even Note 4 or 3 has no issues.
I paid SGD835 for the phone and it sucks.
Enjoy man since you don't have that problem.

Still no fix for this annoying issue?

thihaz said:
I only go into bright sunlight during lunch time when i enjoy the movie while having my meal.
The display is almost black. My previous phones LG G4, ZUK Z1, Moto X Style, even Note 4 or 3 has no issues.
I paid SGD835 for the phone and it sucks.
Enjoy man since you don't have that problem.
Click to expand...
Click to collapse
All phones from any manufactures with snapdragon 810 have an overheating problem (you can thank Qualcomm for that)...since the Z5p uses that SoC as well, this is a protection implemented by Sony so the processor doesn't fry your phone, your phone will get hot already watching a movie as you do under normal conditions, the situation will get even more steamy in full sun (on a hot day, it's fine when it's cooler outside)...the screen brightness is reduced to cool down the phone when it becomes too hot...
With that said there is a way change the value of the minium screen brightness (if you're rooted) to a higher number... If you search there is a thread about this in the Z5p forum already where someone posted where to find what to change...never tried myself by the way as you permanently change that value to some higher so it will be too bright the rest of the time and frankly I think that it will do more harm than good anyway...
Just let your phone cool down and you're good to go again...

-DM- said:
All phones from any manufactures with snapdragon 810 have an overheating problem (you can thank Qualcomm for that)...since the Z5p uses that SoC as well, this is a protection implemented by Sony so the processor doesn't fry your phone, your phone will get hot already watching a movie as you do under normal conditions, the situation will get even more steamy in full sun (on a hot day, it's fine when it's cooler outside)...the screen brightness is reduced to cool down the phone when it becomes too hot...
With that said there is a way change the value of the minium screen brightness (if you're rooted) to a higher number... If you search there is a thread about this in the Z5p forum already where someone posted where to find what to change...never tried myself by the way as you permanently change that value to some higher so it will be too bright the rest of the time and frankly I think that it will do more harm than good anyway...
Just let your phone cool down and you're good to go again...
Click to expand...
Click to collapse
Thanks for the tip.
Because of those pros and cons, sony lacks behind. Sadly I am already using iphone 7 plus and there is no such a problem on camera and display.
Still keep my Z Ultra for fun though

thihaz said:
Thanks for the tip.
Because of those pros and cons, sony lacks behind. Sadly I am already using iphone 7 plus and there is no such a problem on camera and display.
Still keep my Z Ultra for fun though
Click to expand...
Click to collapse
Whatever floats your boat

If anyone have issue with this(Eveyone should), I have file that let you use 100% of screen brightness, of cause it's adjustable.
Basically let you have full control without Thermal limit kicks in.
Only thing is that the file can not be modified without ROOT...
Let me know
It's call thermal-engine.conf, all you have to do is change all the numbers under "backlight" to 255(Max value).
It works great, I've been using it as is for more than one year.
It's located Root/system/etc/thermal-engine.conf

-DM- said:
Whatever floats your boat
Click to expand...
Click to collapse
Had the same problem, at least think so since I was never able to recover by cooling the Z5 so I am not sure.
Then, I installed Lux Auto Brightness.
The last 72 hours are much better and I was in the sun though not sure if the phone was overheating.
In settings I set Min brightness to 40%, linked ambient light of 0 lux to 60% brightness and let the app do its thing.
So far so good.
Let me know what you think.

barrr said:
Had the same problem, at least think so since I was never able to recover by cooling the Z5 so I am not sure.
Then, I installed Lux Auto Brightness.
The last 72 hours are much better and I was in the sun though not sure if the phone was overheating.
In settings I set Min brightness to 40%, linked ambient light of 0 lux to 60% brightness and let the app do its thing.
So far so good.
Let me know what you think.
Click to expand...
Click to collapse
never tried Lux Auto Brightness...I'll give it a try, but the screen dimming only happens to me on rare occasions while outside under a hot sun, I'll install that app and see next time around when I meet those conditions

Android P what have they done with the brightness?

Just installed P and now previous brightness level of 63 it's so dim? I have to have it almost on 90% brightness now, why have they messed with this, it was fine as it was

Ady1976 said:
Just installed P and now previous brightness level of 63 it's so dim? I have to have it almost on 90% brightness now, why have they messed with this, it was fine as it was
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Click to collapse
Same for me. WTF Google?

The actual brightness is the same, they just changed how the slider works. The first half moved it fast, last half moved it slower. Now the slider is more uniform.

https://www.androidpolice.com/2018/...c-brightness-slider-introduced-android-p-dp3/
Sent from my Pixel 2 XL using Tapatalk

It's definitely not smooth across the entire range, all my brightness is almost all the last 10% and actually a pain to set properly, it's worse for me.

That's more accurate because in bright indoor lighting or outside it's going to be towards the end of the scale. Dim indoor lighting I'm currently at 43%. And in pitch black it goes to 0%. I pretty much never touch my slider anymore after a couple adjustments. Don't get caught up on the percentages. I would be willing to bet that with Oreo at 40% and Pie at 90% the lumens output of the screen was the same.
Ady1976 said:
It's definitely not smooth across the entire range, all my brightness is almost all the last 10% and actually a pain to set properly, it's worse for me.
Click to expand...
Click to collapse
Sent from my Pixel 2 XL using Tapatalk

EeZeEpEe said:
That's more accurate because in bright indoor lighting or outside it's going to be towards the end of the scale. Dim indoor lighting I'm currently at 43%. And in pitch black it goes to 0%. I pretty much never touch my slider anymore after a couple adjustments. Don't get caught up on the percentages. I would be willing to bet that with Oreo at 40% and Pie at 90% the lumens output of the screen was the same.
Sent from my Pixel 2 XL using Tapatalk
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Click to collapse
Yeah I don't touch mine once it is setup generally but it's definitely not even throughout the scale, only gets really bright from like 85% onwards, just seems odd the real brightness is so high up, makes for fine tuning a bit difficult.

The screen has been rated a minimum of 1.78 nits and a maximum of 496 so if it truly is linear now, 50% is something like only 247 which isn't that bright at all.
Ady1976 said:
Yeah I don't touch mine once it is setup generally but it's definitely not even throughout the scale, only gets really bright from like 85% onwards, just seems odd the real brightness is so high up, makes for fine tuning a bit difficult.
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Click to collapse
Sent from my Pixel 2 XL using Tapatalk

Hi
So much for AI on adaptive brightness, it's rubbish, and why do Google try to fix things that aren't broken, who needs AI for adjusting a backlight? Seems nothing more than just being able to market the phone as having AI! Never had an issue on Oreo, had it set at 25% with adaptive brightness and it was always the correct brightness wherever I was, which shouldn't be difficult given it's got a sensor to read the light levels.
Now since Pie, last night I turned my phone on in the dark and was blinded by a bright display (Oreo it would have been at it's lowest level in the dark), so turned the brightness down, turned it again later and the same thing, way too bright, and again this morning in a fairly dark room the same thing, far too bright, so I turn it down again. How long will it take to learn? The old method it was tamed immediately, now I'm constantly fiddling with the brightness, how is that progress!
Is there an option to go back to the old method?
Wish I hadn't bothered upgrading, just another year with an Android update with changes for changes sake.
Regards
Phil

PhilipL said:
Seems nothing more than just being able to market the phone as having AI!
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Click to collapse
Totally agree on this. Adaptive battery and adaptive battery are almost non-sense. Only something cool to brand the item.
And Pixel Visual Core is just something super-expensive to make Whatsapp, Facebook and Twitter cameras use HDR+. I'd rather pay something less and not having this feature that is probably expensive (or modifies the perception of the Pixel 2 as super-new and mega futuristic). Also, I've got the feeling they won't use it for Pixel 3 or 4.
Moto X1 was the last to use more CPUs to optimize the phone, before Qualcomm introduced more chips.

Hi
For any one having this issue please report this from your device at Settings > System > About Phone, the more people that flag it the more likely it will get fixed.
For me, I hate these updates that break simple basic functionality and overall add nothing extra to what we had with Oreo. Google really need to test these things properly and stop trying to fix things that simply are not broken!
Regards
Phil

PhilipL said:
Hi
For any one having this issue please report this from your device at Settings > System > About Phone, the more people that flag it the more likely it will get fixed.
For me, I hate these updates that break simple basic functionality and overall add nothing extra to what we had with Oreo. Google really need to test these things properly and stop trying to fix things that simply are not broken!
Regards
Phil
Click to expand...
Click to collapse
Already reported, i shouldn't have to have my phone on 90% to be the same as what it was on 63%