Related
Am I the only one experiencing an overly sensitive Sense UI? Perhaps I'm missing a setting. I have looked all through /etc and can't find any way to adjust the sensitivity.
Anyone have a solution?
Touchscreen Spaz-out
I will say: occasionally my touch screen will just go bat-**** crazy, registering even the slightest movements as "clicks". The phone is completely unusable; god help you should you be in the lock screen.
Now, after observing this for a couple of days I have a hare-brained theory: it's related to how hot the device is. I've noticed that it happens after extended periods of use, or when it's plugged into the wall charger. Just unplugging it grants a short reprieve, and a refractory "cool down" period generally fixes it. Also it'll work sorta if you press down on the screen like you're trying to kill your phone.
Can anyone else confirm this?
I was getting a lot of the jitteryness and screen lockups before I loaded MR2, everything seems pretty fine now. I had more problems with my wife's myTouch than the eris for once last week.
I do not have any issues like this (I do have all the updates though)
-Chr1831
UPDATE:
It might just be fixed! I've received permission from deck to post this test build link here on XDA. Flash it and tell us what you experience! If you still get the black screen, take a cloth or use your shirt and wipe the area to the left of the HTC logo on your screen.
http://d-h.st/d8A
Click to expand...
Click to collapse
So this thread is for those of us who simply cannot get our proximity sensors to function properly in-call. I will attempt to explain what's going on, my ideas on possible explanations, and why this is actually a critical issue.
If you don't have this issue, please don't waste our time by telling us "oh I've never had this issue and I've been flashing since such and such, it must be your hardware". It's not our hardware, and if you don't have any help to offer, please don't further frustrate us, thanks. I have tested my proximity sensor with several different monitoring tools, ROMs, and even HTC's built in DIAG tool. I do not need you to tell me that my hardware is bad, I'm very much aware my hardware is completely functional.
Click to expand...
Click to collapse
What's supposed to happen?
When you place a phone call, and audio goes through your earpiece, when you bring the phone up to your ear, the phone will utilize the proximity and light sensors to shut the screen off, so that you don't accidentally press any buttons with your cheek or face. It's incredibly useful.
What's actually happening in CMX?
In the CM10 previews that are being released in the IRC, for a smaller subset of users, when you make an outgoing call, moments after the call is connected, the screen will go black, regardless of whether or not you've put the phone up to your face. No button on the phone does anything. The call still goes through, and you can hear the other end and the other end can hear you. But you simply cannot get the screen to turn back on.
How do we get the screen turned on again?
There's several ways to get the screen back on, none of them are convenient.
You have to wait for the other person to end the call. This is extremely problematic if the other end does not pick up and you are forced to leave a voicemail message.
You have to take a very bright light source and put the phone directly up to the light source. The scren will turn on. You have to be very, very quick about this because if the phone moves just a tiny bit away from the light source, the screen shuts off and you're back to square one again.
You can take any IR-based TV remote and aim it directly at the speaker grille on the front of your phone and press a button.
You can press and hold the power button for 15 seconds until the capacitive buttons start blinking, and when they stop blinking, the phone reboots.
NEW! You can plug in any headphones into the 3.5mm jack, and the screen will turn on and stay on. Thanks yohaq from the IRC.
NEW! It is possible to bypass the issue altogether by using a bluetooth headset. Thanks to people in IRC for figuring this out.
As you can see, none of those are really realistic.
Why is this happening?
Let me get this out of the way right now; it's not a case of faulty proximity sensors/hardware. The call behavior functions exactly the way it should be in Sense ROMs and stock ROMs. I have a few ideas as to why it's going on.
The proximity sensor is simply just not being used at all, and only the light sensor is being used.
There might be slight variations in proximity sensor drivers among different phones, and for that reason, the "incorrect" driver might be causing the varied proximity sensors to malfunction.
The proximity sensor may not be sensitive enough.
arrogantbastard has a very thorough breakdown with his conclusions as to why. Check it out here: Post
What could be possible short-term fixes?
Now, I don't quite know how many of these (if any) are even possible, but here's a few ideas I have. Because my "if you don't have this issue please don't bother with this thread" forewarning is apparently rocket science to a few people, when I suggest that we try and remove files, I'm obviously referring to just us removing said files, not deck removing the functionality for everyone. Normally, I'd assume this was obvious, given the title of this part is "short-term fixes", but...
Completely disable the proximity and light sensors through the deletion of files (I highly doubt this would work)
Implement a Jewel-specific option (please note how it says "option" and not "setting that is forced upon everyone") to force the screen to stay on during calls (this seems like the most likely)
Implement a Jewel-specific control to tweak the sensitivity of the light/proximity sensors.
What steps do we need to take from here?
Honestly, we need AOSP developer exposure. So many people are shrugging it off as "bad hardware" when we know that's not the case. The following from you would be helpful:
Your experiences
If you've had issues before and now they are fixed, tell us how many days of testing you've done and how long your calls have been.
Your workarounds
Your ADB logcats (please attach them here)
Other Resources:
Proximity Issue in CM7 - Bugtracker
HTC EVO 4G LTE - Test Your Proximity Sensor
Arrogantbastard's extremely thorough dissection of the ROM/kernel in comparison with others:
arrogantbastard said:
That's a cool little app[referring to Android Sensor Box]. I played around with it in a couple of different lighting conditions. Here's what I observed:
{No case, no screen protector, ever}
On CM10, Build date Aug 15 02:31:06 PDT 2012, dirty flashed over 8/14:
- In "normally" lit room, with incandescent bulbs: light sensor reports 320 luxes, prox sensor very responsive toggling between 0 and 9.0 cm. Works as expected while in calls.
- Turn off lights (not completely dark, there is a tv on and ambient light from another room): light sensor reports 90 luxes, prox sensor defaults to 0 no matter what. Returns to 9.0 when lights turned on. Can place a call, screen goes dark when I place my hand over the sensor (as expected.) Screen will *not* come back when removing my hand. It will when I turn the lights on.
- Another room lit by fluorescent lights. Subjectively brighter to the eye (more white), but light sensor reports 225 luxes. Prox sensor starts at 9.0 and toggles to 0 when waving a hand over it, but will not toggle back to 9.0 when I remove my hand. Toggles back to 9.0 when I move into first room with incandescent lights. Same in-call behavior described with lights off above.
On Viper4G, Awesomesauce 1.3 kernel:
- Exact same behavior as above in CM10. That was not expected.
Viper4G, stock kernel:
- Light sensor reports same values as above, prox sensor toggles between 0 and 9.0 in *all* lighting conditions, even with the lights off with very little ambient lighting in the room. Screen turns on and off as expected in calls in *all* conditions.
MeanROM v1.5 (last version I nanded before jumping to Viper), stock kernel:
- Same as Viper/stock kernel.
Conclusions:
- In no case did I see any gradient values as reported by tbird, it always toggled between 0 and 9.0
- In-call behavior correlates well with what Android Sensor Box reports, which makes it a great little testing app
- Sense ROMs/Stock kernel works in *all* lighting conditions
- Sense ROM/Awesomsauce - does not work correctly in all conditions
- CM10 does not work correctly in all conditions
- It appears there is some sensitivity to measured light condition (or a sensitivity to light color/temperature) that is accounted or calibrated for within stock Sense that is not accounted for in CM10.
- Viper/stock kernel works in all conditions. Viper/Awesomesauce kernel does not. That leads me to believe that the kernel plays at least some part in the behavior.
- Anything else?
Click to expand...
Click to collapse
As of now, anything you guys can do would be tremendously helpful. In my eyes there is nothing else stopping the CMX builds from being daily builds.
Id like to state i have the same exact issue, and also elaborate a bit further.
When you place a call, the screen will go black. All lights on the phone turn off. Capacative lights, notification lights, screen backlight, all of it. These will not turn on unless the call is ended by the person you are calling, or by shining a bright light into the sensor. Also you cannot actually hear the phone ringing whatsoever on the CM10 side while the call is being placed. During this black screen time, there is no audio, no screen, and all of a sudden you will jsut hear "Hello" from the person you are calling. Audio only works when the call actually is connected to the other party and they start talking, nothing during the actual ringing of the phone. Once the call has been ended, the screen remains black, however the capacative lights will illuminate. Once they illuminate you can press the power button on the device to turn the screen back on.
i can confirm plugging in something into the audio jack makes the screen come on and stay on as well, but once unplugged, the screen goes back to an off state
I'd like to state that another temp-quick fix is to plug headphones, or any other 3.5mm jack into the headphones. The proximity sensor is only in use while phone audio goes through the earpiece at the top, but if you're on bluetooth or any sort of headphone/3.5mm jack the screen stays on. It's easier to carry around headphones than it is to carry around a remote or a flashlight haha. And when I'm in a rush, I can't wait for the phone to reboot, the other person to hang up, or for the call to go to voice-mail.
Edit: I just realized liquid just edited his response haha, sorry for the double post!
yohaq said:
I'd like to state that another temp-quick fix is to plug headphones, or any other 3.5mm jack into the headphones. The proximity sensor is only in use while phone audio goes through the earpiece at the top, but if you're on bluetooth or any sort of headphone/3.5mm jack the screen stays on. It's easier to carry around headphones than it is to carry around a remote or a flashlight haha. And when I'm in a rush, I can't wait for the phone to reboot, the other person to hang up, or for the call to go to voice-mail.
Click to expand...
Click to collapse
Thanks for the suggestion, it's been added to the OP.
yohaq said:
I'd like to state that another temp-quick fix is to plug headphones, or any other 3.5mm jack into the headphones. The proximity sensor is only in use while phone audio goes through the earpiece at the top, but if you're on bluetooth or any sort of headphone/3.5mm jack the screen stays on. It's easier to carry around headphones than it is to carry around a remote or a flashlight haha. And when I'm in a rush, I can't wait for the phone to reboot, the other person to hang up, or for the call to go to voice-mail.
Click to expand...
Click to collapse
i can confirm this to be true, however i jsut cut the end off an old set of headphones. even just the plug stub works to turn the screen on lol
Sooooooooooooooo Annoying
I agree. Ive been having the same problem since CM9. Everytime I revert to sense rom (Viper) the problem disappears, so I doubt this is a hardware issue. Mine occurs during phone calls and essentially renders the phone useless because I cant get the screen to turn on until the other person ends the call. The only 2 fixes that I have used are as follows:
1. Shining a bright light on the sensor
2. Rubbing my finger on the screen where the sensors are located (possibly due to acute change in light entering the the sensor???)
I did a bit of research and found a similar prob on cm 7 bug tracker which has since been since been resolved. There were at least 22 others with similar complaint, so Im sure this is a valid concern.
Of note, I noticed that there was a constant red light being emitted from one of the sensors the other night, not sure how that is related but seems a bit strange.
Also worth mentioning is that this problem occurs with and without screen covers, I currently have a ZAGG screen cover around the entire phone.
htcman12 said:
I agree. Ive been having the same problem since CM9. Everytime I revert to sense rom (Viper) the problem disappears, so I doubt this is a hardware issue. Mine occurs during phone calls and essentially renders the phone useless because I cant get the screen to turn on until the other person ends the call. The only 2 fixes that I have used are as follows:
1. Shining a bright light on the sensor
2. Rubbing my finger on the screen where the sensors are located (possibly due to acute change in light entering the the sensor???)
I did a bit of research and found a similar prob on cm 7 bug tracker which has since been since been resolved. There were at least 22 others with similar complaint, so Im sure this is a valid concern.
Of note, I noticed that there was a constant red light being emitted from one of the sensors the other night, not sure how that is related but seems a bit strange.
Click to expand...
Click to collapse
Can you link to that?
94tbird said:
Id like to state i have the same exact issue, and also elaborate a bit further.
When you place a call, the screen will go black. All lights on the phone turn off. Capacative lights, notification lights, screen backlight, all of it. These will not turn on unless the call is ended by the person you are calling, or by shining a bright light into the sensor. Also you cannot actually hear the phone ringing whatsoever on the CM10 side while the call is being placed. During this black screen time, there is no audio, no screen, and all of a sudden you will jsut hear "Hello" from the person you are calling. Audio only works when the call actually is connected to the other party and they start talking, nothing during the actual ringing of the phone. Once the call has been ended, the screen remains black, however the capacative lights will illuminate. Once they illuminate you can press the power button on the device to turn the screen back on.
i can confirm plugging in something into the audio jack makes the screen come on and stay on as well, but once unplugged, the screen goes back to an off state
Click to expand...
Click to collapse
Sounds like you don't have Touch sounds enabled. Try that. This was fixed though (for me) on the 8/15 build of CMX, so I don't have to have Touch sounds enabled for calls to work properly, but it does have to be enabled for Google Now to work properly.
---------- Post added at 11:10 PM ---------- Previous post was at 11:07 PM ----------
htcman12 said:
Of note, I noticed that there was a constant red light being emitted from one of the sensors the other night, not sure how that is related but seems a bit strange.
Click to expand...
Click to collapse
The red light turns on when the sensor is turning the screen off. The light will stay on for a while usually, unless you can get the sensor to turn the screen back on.
htcman12 said:
Of note, I noticed that there was a constant red light being emitted from one of the sensors the other night, not sure how that is related but seems a bit strange.
Click to expand...
Click to collapse
I believe that light is from the proximity sensor. I'm not sure on that, but I think that is what it is. I think that is why the "remote control" thing works because it is picking up the IR from the remote. I'm not a hardware guys, so I certainly don't want to speculate too much.
Also, I'm assuming that if I want to post a logcat, I need to record it during the time this issue is happening? Any filtering I need to do on the log or just dump everything?
Here is a thread I found that dealt with another phone's proximity sensor not working properly.
http://forum.xda-developers.com/showthread.php?t=1658474
Steps are given on how to disable the proximity sensor altogether using a couple apps. One to identify what driver is being used to control the proximity sensor, and the other to actually disable the driver. I found another app, "Hardware Info", that gives detailed information about our phones hardware. CM3602 is the title being given to the proximity and light sensors.
After googling, it looks like CM3602 is a chip that controls multiple sensors and functions. In the app "Android Sensor Box" you can see that the light sensor, as well as all the other sensors on the phone are working great except the proximity sensor.
When using "Hardware Disabler", I can't seem to find CM3602 in the list of drivers to control. There is an option to rescan in different folders on your device, but the app is sorely out of date and it doesn't seem to want to rescan to find more drivers. Maybe there is a better app that can control drivers?
Thanks for this thread. I have nothing to add to what has already been said other than I have the same issue. It works perfectly in any Sense based ROM, so I know it's software, not hardware.
I was wondering if it's actually useful to deck and toast to post logcats here? Do they lurk XDA enough to actually see them or should we be posting on IRC if/when we catch them there?
arrogantbastard said:
Thanks for this thread. I have nothing to add to what has already been said other than I have the same issue. It works perfectly in any Sense based ROM, so I know it's software, not hardware.
I was wondering if it's actually useful to deck and toast to post logcats here? Do they lurk XDA enough to actually see them or should we be posting on IRC if/when we catch them there?
Click to expand...
Click to collapse
Please do! The group policy on my work machine prevents me from running the adb executable. Post as many logcats as you wish.
For further reassurance that your proximity sensor is NOT broken, please check this link here while running a Sense ROM to test it.
http://forum.xda-developers.com/showthread.php?t=1677205
Thanks fella12 from IRC!
arrogantbastard said:
Thanks for this thread. I have nothing to add to what has already been said other than I have the same issue. It works perfectly in any Sense based ROM, so I know it's software, not hardware.
I was wondering if it's actually useful to deck and toast to post logcats here? Do they lurk XDA enough to actually see them or should we be posting on IRC if/when we catch them there?
Click to expand...
Click to collapse
we can direct them to the link with all our complaints and symptoms in one location....will likely make diagnosing problem easier
---------- Post added at 09:46 PM ---------- Previous post was at 09:42 PM ----------
Someone on the IRC channel posted as follows:
"i made 6 calls in the car, screen worked all 6 times. disconnected bluetooth, made a call, black screen of death"
hmmmmm, not sure what to make of this????
I've added the Bluetooth workaround to the main post.
megazac1 said:
Sounds like you don't have Touch sounds enabled. Try that. This was fixed though (for me) on the 8/15 build of CMX, so I don't have to have Touch sounds enabled for calls to work properly, but it does have to be enabled for Google Now to work properly.
---------- Post added at 11:10 PM ---------- Previous post was at 11:07 PM ----------
The red light turns on when the sensor is turning the screen off. The light will stay on for a while usually, unless you can get the sensor to turn the screen back on.
Click to expand...
Click to collapse
I am on 8/15 and have been using cmx since 8/2. Proximity issue in all builds for me. I have tried both with touch sounds enabled and disabled and it doesnt make any difference whatsoever
htcman12 said:
Someone on the IRC channel posted as follows:
"i made 6 calls in the car, screen worked all 6 times. disconnected bluetooth, made a call, black screen of death"
hmmmmm, not sure what to make of this????
Click to expand...
Click to collapse
My guess is that on Bluetooth, the phone isn't expecting your face to be mashed up against it, so no need to kill the screen. Also, if you were to be browsing your phone (looking up contacts, reading email, etc) while on a Bluetooth call, having the screen shut off every time your thumb got too close to the upper left corner would be irritating.
LiquidSolstice said:
.
[/LIST]
What could be possible short-term fixes?
Now, I don't quite know how many of these (if any) are even possible, but here's a few ideas I have.
Completely disable the proximity and light sensors through the deletion of files (I highly doubt this would work)
Implement a Jewel-specific option to force the screen to stay on during calls (this seems like the most likely)
What steps do we need to take from here?
Click to expand...
Click to collapse
Sorry, but I don't want to lose functionality so that the minority can get it working.
Most people don't have this issue. It's something different about your phones.
Sent from my EVO using Tapatalk 2
Rxpert said:
Sorry, but I don't want to lose functionality so that the minority can get it working.
Most people don't have this issue. It's something different about your phones.
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
I'm sorry, this is going to come off as rude, so I'm just going to say it again.
If you're not experiencing this issue, feel free to go find another thread to post in. I am getting really sick and tired of people who don't have the issue telling me that there is just "something wrong with my phone". There is nothing wrong with my phone. 4 different diagnostic utilities including HTC's built in DIAG tell me that my proximity sensor is just fine.
You wouldn't lose functionality. If you stopped and thought about what I said for two seconds, you would realize that the "possible fix" would ONLY apply to people trying to figure out how to fix this issue. Obviously deck is not going to destroy functionality by globally removing the files for the entire EVO 4G LTE CM10 branch. When I proposed deleting files as a short-term solution, that meant it was just that, a short term solution.
So let me say this again in really firm terms; if you don't have this issue, you don't need to be in this thread. Thanks.
I think i found the problem, not sure exactly how to fix, bt i think ive found it.
I am using the "Android Sensor Box" app from the market. In Sense when I test the proximity sensor, the values range from 0.0 to 9.0 as i move my finger closer and further from the phones proximity sensor. It seems there is a great range of values it can read, such as 1.1, 2.4, 4.7, 6.8, 7.9, 8.3, 9.0, ect and everything in between 0.0 and 9.0. In CM10 however, it only reads 0.0 and 9.0, basically On or off. It seems the lack of resolution in this dataset is what is causing the issues for the proximity sensor.
Now I have been having the issue all along. Ive been using a Steinhill Screen Protector, and a seidio Case. In sense the issue was never apparent. In CM10 it never failed. I removed my screen protector and the issue did not resolve itself. But i never tried without the screen protector AND the case. Removing both and Viola, the proximity sensor in CM10 works like a charm. I made 15 calls and it performed flawlessly 15 times
It seems that we need more resolution in the sensor in CM10 for it to function properly. That being said i firmly believe that if the resolution of the sensor cannot be improved, the real issue comes down to screen protectors and more specifically, the ones that do NOT have cutouts for the proximity sensor. Zagg users who have the cutout do not seem top be experiencing the issues on IRC. Those who use the steinhill ones seem to have it, like me.
Hello all and please forgive my poor english
I really love this tablet (thickness, battery, weight, screen) BUT i have a major problem with it : i often need to tap 2 or 3 times on something in order to launch/select it and it ruins my global experience with the tablet :crying:
Do you guys have this problem and is there a way to alter the sensivity of the screen ?
Thanks
yanouch said:
Hello all and please forgive my poor english
I really love this tablet (thickness, battery, weight, screen) BUT i have a major problem with it : i often need to tap 2 or 3 times on something in order to launch/select it and it ruins my global experience with the tablet :crying:
Do you guys have this problem and is there a way to alter the sensivity of the screen ?
Thanks
Click to expand...
Click to collapse
Yes, I have the same problem. Some say, it's software issue, and suggest to wait until tab gets updated.
xbad1 said:
Yes, I have the same problem. Some say, it's software issue, and suggest to wait until tab gets updated.
Click to expand...
Click to collapse
Yeah that's what i expected but wanted just to know if others had the same problem and if there was already a workaround for this
Many people have this problem, including a number of reviewers.
Nevertheless Sony refuses to acknowledge the existence of the issue. When I called them, the guy said "You are the first to report such a problem". (Probably he lied and was advised "from above" to say so...)
The customer is left in the cold!
Some people have a return policy - what if one waits for a software update, the return period expires, the update comes, but it doesn't fix the problem and it turns out to be a hardware problem??
The information politics of Sony and other companies (yes, Google, you too!) is an absolute PILE OF S**T!!
Yup, me too. The annoying thing it is difficult to document. Yesterday my tablet was charging and I turned the screen on using power button - lock screen didn't react at all to my inputs. Tried switching screen on/off a few times but it didn't help. Also tried double-tap to wake with no success. Went to get my camera to document, then of course it started working...
I've written this elsewhere, but this is how I notice the touch screen problems:
For me the tablet randomly doesn't recognize touches during the below instances. In all cases either going to the home screen and relaunching the app or turning the screen off/on will solve the problem. The problems occur several times per day but not constantly.
Sometimes opening apps will cause everything but the bottom android-buttons to be non-responsive. This can happen in any app it seems, including native ones such as Google Play.
Sometimes the lockscreen doesn't recognize touches at all.
While charging I've had issues getting the touchscreen to recognize touches, disconnecting the charger has helped.
Double-tap to wake seems to be very moody, sometimes working sometimes not. Sometimes it turns the screen on even by me just holding the tablet with my palm resting against the screen.
While not a bug per se, also the android-buttons seem very picky that you have to hit them right on the spot to work.
Other threads on same topic:
http://talk.sonymobile.com/t5/Xperia-Z2-Tablet/Touch-screen-problem/m-p/620325
http://community.sony.fi/t5/Tablets/Xperia-Z2-tablet-touch-screen-issue/td-p/1582051
http://www.android-hilfe.de/sony-xp...screen-reagiert-nicht-immer-zuverlaessig.html
Damn ! i'm not alone....
One forumer said he thinks that switching OFF Stamina mode helped a little bit...
I don't have my tablet with me, can someone test this ?
"A little bit" help is NOT enough.
The touchscreen MUST work perfectly, whether with Stamina Mode on or off or whether with Mode XY on or off. No discussion.
Sony HAS to fix this.
Already solved in .55 firmware
hasenbein1966 said:
Nevertheless Sony refuses to acknowledge the existence of the issue. When I called them, the guy said "You are the first to report such a problem". (Probably he lied and was advised "from above" to say so...)
Click to expand...
Click to collapse
The same experience with Z1 compact and support. Told them the camera is really broken - they told me there is absolutely nothing wrong with the camera and I'm the first one who got this problem. That was some weeks before, now they officialy added that maybe some devices are defect.
But that´s Sony, they give a **** about u, don't even try to contact the support.
I'm also having this issue, if I'm using the Sony sleve it's impossible to use the touchscreen as it will tip over when I press hard enoug for the screen to actually register it.
No problem here.
Only early days yet. The only prob I've got atm is Dropbox isn't showing up in the Album.
Edit: Fixed the Dropbox problem by using the Dropsync app.
I also seem to get this. The tablet works fine when tilted at an angle but for some reason can be completely unresponsive when it's laid flat. Would this suggest a hardware issue or a software bug?
I also get this, sometimes it's like I just need to press harder (so hard the tablet falls over when using the cover as a stand), but other times it seems that no matter how hard I press or how many fingers I apply it doesn't register a thing for periods at a time.
I'm lead to believe that this is either software or firmware considering the intermittent nature. Are there any custom ROMs out yet that we could flash to eliminate the software aspect?
I have same problem, most noticeable in Chrome, switching tabs fails to register 10% of time. I can only think Sony have a hardware quality control issue with the digitizer as if it was firmware related, surely everyone would be suffering. Strange none of the reviews have picked this up, but I'm going to have to return mine.
No, no, no.
It's most surely a firmware problem!
The electric current threshold for registering a touch is set too high. So if the tablet lies on a non-conducting surface, and especially if it was not touched for a longer time, there will be touch problems. Also touching the tablet with a fingernail will not suffice because nails conduct current worse than skin. Other tablets which have a lower current threshold also accept fingernail touches.
I'm very sure: If you hold the tablet with one hand and touch with the other (and don't accidentally use fingernails), touch will be OK! Right? This is because more current will flow.
The .55 firmware which is out for LTE devices already and will follow for WiFi devices lowers the threshold and thus fixes the problem.
Up to then always take the tablet in your hands when operating it.
Interesting theory, just gave it a go, inclusive, but does seem worse in case. However if Sony aware, why have they not rushed out firmware as otherwise initial user experience is ruined.
QUOTE=hasenbein1966;52005720]No, no, no.
It's most surely a firmware problem!
The electric current threshold for registering a touch is set too high. So if the tablet lies on a non-conducting surface, and especially if it was not touched for a longer time, there will be touch problems. Also touching the tablet with a fingernail will not suffice because nails conduct current worse than skin. Other tablets which have a lower current threshold also accept fingernail touches.
I'm very sure: If you hold the tablet with one hand and touch with the other (and don't accidentally use fingernails), touch will be OK! Right? This is because more current will flow.
The .55 firmware which is out for LTE devices already and will follow for WiFi devices lowers the threshold and thus fixes the problem.
Up to then always take the tablet in your hands when operating it.[/QUOTE]
POTENTIAL FIX FOUND (ROOTED ONLY)!
Rooted users can try this fix, works for me! Touch seems to work perfectly now, also when tablet not in hands and lying on non-conducting surface!
Edit the file
/system/usr/idc/clearpad.idc
and alter these two lines:
Code:
touch.pressure.scale = 0.0001
(original value: 0.1)
and
Code:
touch.filter.level = 1
(original value: 2)
Don't forget a nandroid before
Please report whether it helped! :good:
P.S.: just for the curious - on the first Tablet Z, the two values are also lower: touch.pressure.scale is 0.0074, and touch.filter.level is also only 1.
Thanks for suggestion but dont wish to root (I use it to watch Sky which wont work if rooted) - seems there is more assistance on this forum to the issue than from Sony. I'll give it another week for a firmware fix before returning it.
elaborate...
nos1609 said:
Already solved in .55 firmware
Click to expand...
Click to collapse
If this is fixed in the 55 firmware then how do you get it?
I haven't had a firmware update?
I'm using 16GB Wi-Fi only in the UK
---------- Post added at 09:17 PM ---------- Previous post was at 09:11 PM ----------
homme_fromage said:
If this is fixed in the 55 firmware then how do you get it?
I haven't had a firmware update?
I'm using 16GB Wi-Fi only in the UK
Click to expand...
Click to collapse
My bad, didn't read all the way through, ignore me.
Now after a few days I can say:
With the root fix described above, my tablet works like butter. Simply perfect. :good:
Only instance where I have still problems is when the tablet was lying around for a while and I try to operate the touchscreen without taking it in my hands. Then sometimes (not always) the screen doesn't react, but only for a short time.
The problem seems to be related to static electricity.
Hey xda-community,
i've registered, because i have a strange problem with my LG G5 (H850) European Edition. If this is of any use, it's the Vodafone-Edition. Sorry for my language, i'm not a native speaker .
I got my G5 yesterday and was really pleased with the build quality (i was afraid, i was about the get some of those flawed devices as seen on the internet) and the raw power of the whole package. At first i didn't notice but then i realized, that the automatic brightness didn't work. Then i noticed, while having a conversation, that the display was'nt turned down. Up to this point it sounds like the known bug.
What i think (and please, push me into the right direction if i'm wrong - i'd love to take the shame not beeing able to look properly) makes the difference is, that after installing several sensor test apps from playstore, i always got the information, that both sensors are missing.
I took a trip into service menu and tried to calibrate (or better so say, to see if there was any sign of them) those sensors, but nothing happened. No reaction while covering the area where they are supposed to be, nothing.
Firmware is v10c-262-02. Tried to reset the phone and check while having nothing installed - same problem. I tried safe mode - same problem. I can check autobrightness but it doesn't have any effect whatsoever.
What really makes me shake my head is, that when i'm called and i turn the the display downwards to stop the sound, it works after 2 up to 3 times trying to cover the display.
I'd hate to send it in - maybe i'm just too stupid to look for answers, i'd really appreciate any efforts to help.
Thanks in advance and have a nice day.
Nero
Hey there,
short follow up to the problem. Yesterday evening i got a notification about an firmware update and wanted to install it. After hitting the proceed button nothing happened. Nothing. No installation, nada. I shook my head, deceided to return the damn brick and forgot about it. After an hour i noticed that my soft keys had changed their appearance. They got smaller. I asumed a kind of silent update (? nothing is shocking me anymore concerning this phone), checked the brightness control - no change. An hour ago i wanted to unlock my phone and got no reaction. I was about to hard reset it when it unlocked. I scrolled down the notification bar to check something when i noticed that the brightness was different from my setting. I hit the auto brightness button and bazinga. It changed by itself and since then everything works like a charme. The firmware version hasn't changed. I don't have the knowledge to explain anything or to know if something like this is even possibe (something was definitly new because all those vodafone apps where there again - which i deinstalled yesterday). Okay, long story short - either i'm officially going insane or they fixed it. Don't know, don't care.
Have a nice weekend!
Update: And it's gone again. I have no idea what to do anymore. I don't know if anyone is interessted in this, but i share the info anyway...
With Sensors (Umgebungslichtstärkesensor = Ambient light sensor, Näherungssensor = Proximity Sensor)
fs5.directupload.net/images/160508/459jqzhk.png
Without Sensors
fs5.directupload.net/images/160508/wiazcglk.png
nero
It certainly sounds like it *might* be defective, as you say that you have tried a factory reset.
It is a strange problem you have as it only appears to happen occasionally. It also sounds quite annoying. I know it is a pain to have t return it, but it might be better to do that and have a fully functional device, than to keep on facing this problem.
Sorry not to be able to give you a more satisfactory solution.
Good luck.
nobnut said:
Good luck.
Click to expand...
Click to collapse
Hello,
thank your very much for your reply. I agree, i think it'll be the only option i have. I'll try to do return it, it's quite easy in Germany but, nevertheless, connected to some time without a phone.
Have a nice sunday,
Nero
I have this same issue with the proximity sensor and in my case it is because of the Lifeproof case is causing this, many others with this case report the same thing. Try taking out of the case and test again - mine works fine with no case; If this still happens, with no case on, then maybe the phone
jrhlaser said:
I have this same issue with the proximity sensor and in my case it is because of the Lifeproof case is causing this, many others with this case report the same thing. Try taking out of the case and test again - mine works fine with no case; If this still happens, with no case on, then maybe the phone
Click to expand...
Click to collapse
Thank you for trying to help Sensor was damaged, send it in for repair and got it back. One can be sure that it's not a matter of blocked access to the sensors when a sensor test shows, that there are no sensors.
Told about this in so many forums that i forgot to tighten the loose ends. Sorry.
Kind regards
Seems that a lot of people complain about this bug/glitch. It mostly happens with this device, specific to some carrier like s5 t mobile etc. Mostly what people face is flickering with a green/yellow nuance that covers at least half of the screen, and that happens when you set screen brightness on minimum. Some other ( like me ) also get the flickering while turning the screen on or off. So I started doing some searches over the web, and tried all the 'fixes' possible. Sadly to me nothing worked. Some of these 'fixes' are :
Turning off auto brightness.
Turning off adaptive display.
Turning off screen overlay ( found on developer settings )
Also other strange ones like removing your sd card etc. Few people say that these worked for them, but for me it didn't.
I tried booting on safe mode, and the problem was still there. I also flashed official 5.0 and the same. So the only thing left was to blame the hardware. But I was sceptical about this since the problem is not persistive, sometimes it happens, sometimes not. Sometimes it happens on small scale, sometimes it is worse. Also a lot of people say that their devices were working fine and the problem started after marshmallow update. A certain person on an online forum claims that he/ she spoke with samsung officials and they are aware about this problem and working on an update to fix this. Does this mean it is not physical problem but just a software glitch ? Hard to say, I sent my phone to different local repair shop and they say it is screen physical problem. But maybe they just want to scam me and take money ( new screen costs too much )
After going through all these, I just got the idea to try and flash an older firmware, like kitkat. And to my surprise, on official kitkat rom it still does the problem, but FAR less.
So TLDR if you have this glitch and gave up on all the 'fixes' you found online, try flashing kitkat, it might work for you even if it's not a permanent fix.
I'm sorry to bump this topic being that it seems dead. However after my own research and now my second S5 from T-Mobile. I'm at the same point as you. My research states that it's more of an AMOLED screen issue, which after a factory reset and flash of older ROM and such does make sense. However, at the same time it could be an actual issue with the screen.
It's definitely a hardware issue in my case-cold temperatures exacerbate it ie-I have no flicker issues in the summer, but get flicker issues in the winter if my phone cool's down to the 60s. The flicker goes away if I heat the screen.
It seems the lower the temp, the more wattage (brightness) is required for the display matrix to function; insufficient wattage/heat when the screen is activated, and the matrix collapses. This is why it autobrightness tends causes issues when it provides power below threshold for matrix stability.
Easiest legitimate econimical fix is ordering a replacement screen, if you have reaervations about yiur shop doing it, it's a very easy/cheap/simple process to do yourself and plenty of how to YouTube videos.
okay, I will solve this issue for yall. I have an s5 g900t that had the screen flicker issue and also when temps are cold, the screen would blank out till I warmed the screen. I fixed this issue after a year of having the issue. a temp fix which can damage the device was found by accident when I went to change out a broken rear cam. heating the screen with a heat gun during surgery fixed the issue for a while then the symptoms came back. after much much research and testing, I found the amoled screen was the culprit. I ordered a new screen and replaced it. no more issues. I took the old screen and replaced it to my other s5 which is for testing only and the screen flickered under low light and would not come on when cold. so, if you have a screen that is flickering in low light and/or wont come on during cold, its your screen. replace it and fixed. how long the new screen will last? well 2 years later no problems, yet.
FYI, AMOLED screens are notorious for this issue and the manufacture is well aware.