[Q] Proximity sensor sensitivity - Sony Xperia P, U, Sola, Go

As i keep ending calls unwillingly:
Is there a way to change the sensitivity for the proximity sensor?
Anybody have the same problem?
Using the test in "Xperia Diagnostics" the proximity sensor on my Xperia U on latest FXP is turning on/off at about 15mm, which is a bit too little. When i do the test holding the phone to my ear, there is no constant vibration but turning on and off, which happens during calls too, i guess...
Thanks for any input..
PS:
my ears are quite normal, if some are wondering

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raha16 said:
As i keep ending calls unwillingly:
Is there a way to change the sensitivity for the proximity sensor?
Anybody have the same problem?
Using the test in "Xperia Diagnostics" the proximity sensor on my Xperia U on latest FXP is turning on/off at about 15mm, which is a bit too little. When i do the test holding the phone to my ear, there is no constant vibration but turning on and off, which happens during calls too, i guess...
Thanks for any input..
PS:
my ears are quite normal, if some are wondering
Click to expand...
Click to collapse
What build? Cause i got this with FXP 209, and not on any other build...

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mirost1 said:
What build? Cause i got this with FXP 209, and not on any other build...
Click to expand...
Click to collapse
i had this problem with 209 and have it in 211 also...

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raha16 said:
i had this problem with 209 and have it in 211 also...
Click to expand...
Click to collapse
May be its a common problem for new builds, cause now i am using 206a and have no probs with that.

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mirost1 said:
May be its a common problem for new builds, cause now i am using 206a and have no probs with that.
Click to expand...
Click to collapse
I'm running 206a now too, but it is the same at least in "Xperia Diagnostics"... I will try real world usage tomorrow...
Anybody knows, where the settings for the sensor are stored? in the Phone-Application, in the Rom, in the Kernel, .... ?
Is there an app that lets you set the distance for the sensor for our device?

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raha16 said:
I'm running 206a now too, but it is the same at least in "Xperia Diagnostics"... I will try real world usage tomorrow...
Anybody knows, where the settings for the sensor are stored? in the Phone-Application, in the Rom, in the Kernel, .... ?
Is there an app that lets you set the distance for the sensor for our device?
Click to expand...
Click to collapse
interesting question, did some googling and found this
http://stackoverflow.com/questions/9403351/how-to-change-android-proximity-sensor-sensitivity

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This would solve it - but it's for the Desire:
http://forum.xda-developers.com/showthread.php?t=951858
Can somebody port this to our device?
No change in 206 btw...

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Just for info, if someone s having the same issues:
I'm using eXperiance V2 - Rom on munjeni-Kernel now, but the problem remains.
i tried this, but no change:
http://forum.xda-developers.com/showpost.php?p=8888081&postcount=914
AndroSensor-App keeps showing 1cm as distance - can somebody verify this value on other kernels or other Roms?
1cm seems too little distance for my ear...

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i get the feeling, i'm the only one, having this problem...?
:crying:
Found this:
https://github.com/rachit-rc96/Vengeance-Kernel-U8500/blob/master/drivers/input/misc/apds9702.c
According to my amateur-interpretion of this link, the settings for the sensor are stored in the kernel?
Can somebody confirm this?

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Hello guys in my attemp to fix this really annoying bug (all the time calls were hanging or buttons were pressed) i decided to get my hands dirty and take a look!
So the calibration for the proximity sensor is done in the /system/etc/hw_config.sh
Requirements
ROOT
Root Explorer (or a filemanager of your choice with enables acces to system and edit files as text)
So changed the following lines of the originial hw_config.sh of firmware 6.1.1.B.0.54 ( i think that at every fw is the same configuration please provide feedback)
Code:
# Proximity sensor configuration
dev=/sys/bus/i2c/devices/2-0054/
val_cycle=2
val_nburst=0
val_freq=2
val_threshold=5
val_filter=0
echo $val_cycle > $dev/cycle # Duration Cycle. Valid range is 0 - 3.
echo $val_nburst > $dev/nburst # Numb er of pulses in burst. Valid range is 0 - 15.
echo $val_freq > $dev/freq # Burst frequency. Valid range is 0 - 3.
if `ls /data/etc/threshold > /dev/null`; then
cat /data/etc/threshold > $dev/threshold # Use value from calibration
rm /data/etc/threshold # Remove temp file
else # No value from calibration, use default value
echo $val_threshold > $dev/threshold # sensor threshold. Valid range is 0 - 15 (0.12V - 0.87V)
fi
if `ls /data/etc/filter > /dev/null`; then
cat /data/etc/filter > $dev/filter # Use value from calibration
rm /data/etc/filter # Remove temp file
else # No value from calibration, use default value
echo $val_filter > $dev/filter # RFilter. Valid range is 0 - 3.
fi
to :
Code:
# Proximity sensor configuration
dev=/sys/bus/i2c/devices/2-0054/
val_cycle=3
val_nburst=0
val_freq=2
val_threshold=2
val_filter=0
echo $val_cycle > $dev/cycle # Duration Cycle. Valid range is 0 - 3.
echo $val_nburst > $dev/nburst # Numb er of pulses in burst. Valid range is 0 - 15.
echo $val_freq > $dev/freq # Burst frequency. Valid range is 0 - 3.
echo $val_threshold > $dev/threshold # sensor threshold. Valid range is 0 - 15 (0.12V - 0.87V)
echo $val_filter > $dev/filter # RFilter. Valid range is 0 - 3.
As for now i think the overall experience of calling is definately better and no random hang up or button pressed so far... Please provide feedback!!!

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Thank you for this useful information. I have a Sony Xperia V lt25i.
After display exchange, the proximity sensor always indicated "near" which resulted in black screen when using the telephone.
Anyhow here is what I did to resolve it:
- backup pics
- root phone using towelroot.apk
- install supersu
- install fx explorer
- install fx explorer root addon
THEN:
use fx explorer
... filesystems --> /system / --> root tools -> mount read-write
then go the file
/system/etc/hw_config.sh
and edit textfile
I changed the threshold from 5 to 9
val_threshold=5
then save file
... filesystems --> /system / --> root tools -> mount read-only
restart phone
try or use the app: Phone Tester
ENJOY
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