Database Develop

[Q] Phantom Taps, Bad Screens?

Does anyone have a solution for phantom taps on your NC?
I'm on my 3rd Nook Color when I pick up the replacement unit this afternoon.
My general issues are phantom taps - or the NC doing things I don't want it to. So far a very poor experience when typing, turning a page in a book, or even just navigating the ui. The whole issue may be me, it happens regardless if I am plugged in or not. I keep a very clean screen so there is very to little gunk.
I do have sweaty palms on occasion but not out of the ordinary. I have other touch devices that have never given me this issue. If anything I think the screen is overly sensitive - hardware or software issue?

Nope it's not just you. Mine has a multitude of issues with the touchscreen...
Essentially I cannot use the touchscreen when the device is plugged into stock charger/cable as wherever I put my finger, a random touch appears somewhere on the x-axis near my finger.
It seems that the device does not like changes in temperature or humidity either when it is unplugged. Using my tablet while cold was impossible, and likewise while it had been warm.
I'm on my second tablet from Best Buy-- the first one had dead pixels galore (enough to make the best buy rep say "dang!"), and now this one has a bad touchscreen and hard to press power button.
However: I purchased one of these for my mother a few days before mine at Barnes and Noble, and it has no issues whatsoever... at least not yet.
I've come to the conclusion that this hardware is quite beta, but I'm willing to give them a chance since it is the best bang for the buck, even if I have to go through a couple of returns... it's honestly almost worth the time for me since a tablet is so valuable for schoolwork.

Fortunately mine does not do this. I think maybe for those that are having this issue it may be able to be fixed in a firmware update.
My EVO had extremely similar problems when it first came out with the touchscreen and not being able to use the dropdown menu while the device wasn't grounded. After a firmware update the phone was great with touch sensitivity.

my first one did this also. so far the second is doing fine, but the first didn't have any problems till the 13th day of owning it.
i'm hoping it's just an issue that can be fixed via software - maybe someone put an incorrect voltage input somewhere.

I was having the same issues. I bought a screen protector and that seemed to solve it. So far, it's been working fine.

I noticed the screen protector stabilized the touchscreen a lot. Before I seem to have a problem finding the sweet spot for a touch. Now it seems better.
However, my phantom pinky is always touching something while I am trying to navigate. As long I only get one finger near the screen, it's fine.
Mine came from B&N.
The only other issue I have is the magnetic clasp in the cover seems to throw the internal compass/magnetometer off a lot.

Awats said:
The only other issue I have is the magnetic clasp in the cover seems to throw the internal compass/magnetometer off a lot.
Click to expand...
Click to collapse
Considering the Nook has neither I think you are okay.

khaytsus said:
Considering the Nook has neither I think you are okay.
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Click to collapse
Then how is it managing to correctly position the screen with Google Sky? Is it just spooky smart?

Mine only has problem when screen gets dirty. Try a screen protector or use gloves.

is there really a compass in this thing? I just assumed there wasn't. if there is I'm buying another tomorrow!

Screen protector helps to solve my problem.

Are you seeing more issues right after cleaning the screen? I see issues then and I think it is because I an using some moisture on the cloth. If I just dust it lightly with a dry cloth and live with a few finger prints there seem to be less of an issue.

Awats said:
Then how is it managing to correctly position the screen with Google Sky? Is it just spooky smart?
Click to expand...
Click to collapse
Wifi location services provided by Google from data collection by Street Cars or by Location Services on Android phones.
iolinux333 said:
is there really a compass in this thing? I just assumed there wasn't. if there is I'm buying another tomorrow!
Click to expand...
Click to collapse
....no

khaytsus said:
Wifi location services provided by Google from data collection by Street Cars or by Location Services on Android phones.
....no
Click to expand...
Click to collapse
Oh well, it could be worse although I don't see how Google data can tell which direction I am facing.
Thanks dad!

Awats said:
Oh well, it could be worse although I don't see how Google data can tell which direction I am facing.
Thanks dad!
Click to expand...
Click to collapse
Nor can your Nook Colour.. Using something like TetherGPS would have some heading information, but the NC itself without help would not.
It might show 0, dunno there. Maps for me just shows a dot, if yours is showing different, that'd be... interesting.
For S&G I tried "Compass", it of course FC's immediately like almost all apps that try to use the GPS. Enabled TetherGPS (with no server, just the client) and it ran, but of course no data, no heading, etc.

Is this occuring when the nook is plugged in? sometimes the charger can cause phatom touches with the touchscreen. Cleaning the screen and being on a stable ROM usually gets rid of that problem.

If only I weren't so stupid ...
khaytsus said:
Nor can your Nook Colour.. Using something like TetherGPS would have some heading information, but the NC itself without help would not.
It might show 0, dunno there. Maps for me just shows a dot, if yours is showing different, that'd be... interesting.
For S&G I tried "Compass", it of course FC's immediately like almost all apps that try to use the GPS. Enabled TetherGPS (with no server, just the client) and it ran, but of course no data, no heading, etc.
Click to expand...
Click to collapse
LOL! Ok, I sat down with it and played for a bit. It appears some tilt sensor is handling the up and down tilt. If you raise the screen over your head, it shows those stars and if you tilt it down, I see what is below the horizon. That is pretty consistent. But it's also "simulating" a compass inadvertently.
By that I mean that if I happen to turn it on facing north, it appears to track as you turn in a circle but it's really just me tilting it and it's rotating he view. If you do it enough it has no clue the direction it's facing.
I'm just glad I figured this out before I got lost in the Amazon.

Just got mine plugged it in and unplugged and within stew minutes phantom touches couldn't even reboot it im on cyanogen mod 7
Sent from my SCH-I500 using XDA Premium App

Nook Screen Recalibrate
You guys can try my app from the market

assid2 said:
You guys can try my app from the market
Click to expand...
Click to collapse
Wow, it seems to have improved the accuracy! I need to play with it more to be sure.

Nexus 7 touchscreen dead spots

So i've noticed a very strange issue with my Nexus 7. If I wake the tablet up while touching the screen I get some very strange touchscreen behavior. It's almost as if there are dead areas on the touchscreen that don't respond to touch. If I put it back to sleep and wake it up without touching the screen the issue is gone. I've made a youtube video demonstrating the issue but I can't post the link yet since I haven't had 10 posts yet. If someone PMs me I will message them the link so that they can post it to this thread.
Has anybody else experienced this issue?

I'm having the same issue. I noticed it while typing.
Sent from my Nexus 7 using xda premium

Any specific areas that are less responsive? I wonder if there's a touchscreen calibration app for the Nexus. I know there are for other devices.

El Daddy said:
I'm having the same issue. I noticed it while typing.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
+1 Definitely noticing this. It appears to occur randomly and inconsistently in different regions. The same region will not go dead again, necessarily. It seems as though the screen simply does not register those touches.

clankfu said:
Any specific areas that are less responsive? I wonder if there's a touchscreen calibration app for the Nexus. I know there are for other devices.
Click to expand...
Click to collapse
It seems to be towards the center most of the time and the dead zone appears to vary in size. It's possible the dead spot may center around whatever part of the screen was touched when waking the device. I'll have to do some more testing to see if that is the case.

solvingchaos said:
It seems to be towards the center most of the time and the dead zone appears to vary in size. It's possible the dead spot may center around whatever part of the screen was touched when waking the device. I'll have to do some more testing to see if that is the case.
Click to expand...
Click to collapse
Just got mine and it was sitting outside in the heat and the touchscreen was not responding well when I first turned it. After it cooled off and installed the update every thing is working fine.

Here is a video from the OP. He asked me to post it for him.

Is it possible that the capacitance of the screen is calibrated upon wake or something? Not even sure if possible, but it's a thought.
Edit: a drawing app may allow you to demonstrate a little easier.

I don't know if my issue is related but scrolling is totally inconsistent on my n7. Usually when I swipe it'll work correctly but one out of five times a swipe will be registered as a tap. This gets really annoying when you're trying to scroll but end up clicking something instead. Wonder if my n7 is defective.
Sent from my Nexus 7 using Tapatalk 2

El Daddy said:
Here is a video from the OP. He asked me to post it for him.
Click to expand...
Click to collapse
I don't have my N7 yet so I can't test it out for you but that's definitely weird. Can someone with an N7 try to duplicate the issue?

grukko said:
I don't know if my issue is related but scrolling is totally inconsistent on my n7. Usually when I swipe it'll work correctly but one out of five times a swipe will be registered as a tap. This gets really annoying when you're trying to scroll but end up clicking something instead. Wonder if my n7 is defective.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I've also seen this happen on occasion when I trigger the issue. Swipes will sometimes register as clicks...

A good way to confirm the dead spot is to download a drawing program and see if there are breaks when you try to draw a straight line. Even though I can replicate the dead spot when scrolling, everything seems fine in the drawing program.
Sent from my Nexus 7 using Tapatalk 2

This is an Android problem as far as I am concerned. All of my android devices have typed funky while charging.

grukko said:
A good way to confirm the dead spot is to download a drawing program and see if there are breaks when you try to draw a straight line. Even though I can replicate the dead spot when scrolling, everything seems fine in the drawing program.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I tried this out in two drawing apps and got different results. In "Draw Free" when drawing vertical lines my line would stop at the beginning of the "dead" spot and pick up again on the other side of the "dead" spot. I could not replicate the issue when drawing vertical lines in the "Picasso" drawing app.

Not seeing this issue on my Nexus 7. Not very helpful in tracking the problem, but I figured it was worth mentioning that this doesn't seem to be global. I'll post again if I manage to replicate the issue.

I enabled show touches in developer options when it started happening, and I saw ghost touches nearing the middle left side of the screen when nearing areas with dead spots.
Seems like a grounding issue internally causing the touch driver to short in some places.

nicatronTg said:
I enabled show touches in developer options when it started happening, and I saw ghost touches nearing the middle left side of the screen when nearing areas with dead spots.
Seems like a grounding issue internally causing the touch driver to short in some places.
Click to expand...
Click to collapse
If it is due to a internal grounding issue I don't think it will be as simple as a software fix
I am on the fence on whether I should try and get mine swapped out with a new one at GameStop...At a minimum I am going to try and call google support at some point today and get their take on the situation.

I would definitely swap it out.

Hello to all. I don't have an Nexus 7 but i do have Nexus S and i noticed from some time when i take out the phone from my pocket if i touch the screen and then turn it on the display was not responsive on touch but did not make some tests to see if the touch before turning on the screen was the exact problem. Now i saw this thread and tried the "pointer location" in Developer options and got this:
Turning off the screen.
Put my finger on a chosen spot.
Turn on the screen.
Unlock.
Try to draw a line passing through the exact same place where my finger was when i turned on the screen.
The line get to the point and then make a half circle around the spot or it break the line and then continue after the point where my finger was.
After turning off and on the display again the non responding spot disapear.
Sorry for my bad english

I too am having this problem.
I bought one at Sam's because i was sick of waiting on the play store....now I'm trying to decide if i should take delivery in the hopes that the touchscreen bug is only on some...
Sent from my Galaxy Nexus using Tapatalk 2

Vr apps leaning to the left

Hi,
Don't know where to post my question... But... The vr apps on my note 3 always lean to the left. So when I'm playing a vr story or a Rollercoaster...at the end I'm always looking left of almost behind me. Tried calibrating the sensors but did not work. Some apps have a calibration option with the cardboard magnet. But yeah it's pretty annoying... Someone knows what this could be? I'm on Android 4.4.2...

liobeir said:
Hi,
Don't know where to post my question... But... The vr apps on my note 3 always lean to the left. So when I'm playing a vr story or a Rollercoaster...at the end I'm always looking left of almost behind me. Tried calibrating the sensors but did not work. Some apps have a calibration option with the cardboard magnet. But yeah it's pretty annoying... Someone knows what this could be? I'm on Android 4.4.2...
Click to expand...
Click to collapse
This forum is Gear centric, but common issues some are having with non Gear devices are drift and orientation issues. Most apps have a reset for orientation for this reason. Depending on your phone, this could be better or worse. Depends on the sensor design and set-up. This is all I know on the issues since will really be indigenous to your specific phone, VR headset, software and set-up. Too many variables to have a clue here.

You can try putting your phone on a flat surface while the app is on, leave for at least 5-10 sec. If that doesn't work calibrate you gyro/accelerometer sensors in HwModuleTest, dial *#0*# .
liobeir said:
Hi,
Don't know where to post my question... But... The vr apps on my note 3 always lean to the left. So when I'm playing a vr story or a Rollercoaster...at the end I'm always looking left of almost behind me. Tried calibrating the sensors but did not work. Some apps have a calibration option with the cardboard magnet. But yeah it's pretty annoying... Someone knows what this could be? I'm on Android 4.4.2...
Click to expand...
Click to collapse

[Q] What would make Google Cardboard rotate constantly?

I picked up a Google Cardboard for some fun, but the picture constantly rotates while trying to use it on my XZ. The axis of the rotation is that of going from portrait to landscape (Y axis??)
I've tested the accel, compass, and gyro using the service tests and they all seem to be fine. My XZ is completely stock and up-to-date (OTA).
Not sure what the problem could be? It works fine on my SGS5. I'd appreciate any feedback as the XZ looks and fits inside SO much cleaner than the SGS5, plus its not my daily driver so I won't have to take it out often.
I vaguely recall the same error happening on an app a long time ago, can't remember for the life of me what it was.

Hey. I also play with VR for almost month now(got two vr goggles with are WAY better lenses and quality than cardboard)
And also I have this problem of rotating screen. And to be honest its all depend on app and orientation provider. Most of the time app use indirect/direct sensor fusion but this method just suck...
I found only one solution for that and its to put phone on flat surface for few second with screen face up, and then phone calibrate sensor itself.
Of course its not helping for too long, but its always something...
My favorite VR game: Corridoom is best example for problem that we have.
Fast movement of device constantly move gyro starting point to one direction and when you sit in chair and look straight after a while you need to almost turn 180* because device lost this starting point. App does provide only simple calibration in main menu and Dev that I write about that said that for now its not gonna change this option.
So even if gyro in our xz is really accurate, because i use it as a VR goggles for PC gaming thanks to app Trinus VR
Only real solution for that is actual app that have option to block or reset roll effect. For example my main movie app for watching VR movies Cardboard Theater have such option and for most of time I dont have this problem when I watch movies.
I also tested it via service tests and you can see this problem, when you start app and this Rubik's cube is faced to you green move phone right and left and after few moves its not facing green, but red or blue... And for that app should have that option to reset yaw and roll when you stop moving, but for now most of devs that create VR apps and games just dont think to put such options.
And its not only XZ problem I tested it with galaxy S5 and galaxy Grand Prime and its also have that problem but not that often, mostly when I move my head very fast or for too long, screen start rotating.
maybe it would be possible to fix that in device it self to reset that roll effect but I dont think that anyone with knowledge would like to check that... :/

Trackers are pretty sensitive without some kind of reference point such as a camera. I expect a small amount of bias error over a duration, but using cardboard movie theater the screen turns 180 degrees (roll) in less than 10 seconds. The sensor tests are nowhere near as inaccurate.
Obviously any phone will have the issue over time though, they are cheap parts in small housing. There's multi thousand dollar systems with small degree of wander that are only IMUs. It's the severe amount the xz has that bugs me.
I'll try the laying it flat so it can reset its bias, might work. I noticed yesterday that when facing west it wasnt half as bad.
If you were actually able to enjoy a movie without locking the orientation then yours is far better than mine. My sgs5 I might have to adjust the orientation once every 30 minutes, the xz I have to reset it every seconds lmao.
Thank you for the input!
update:
Letting the bias adjust helped immensely. Thanks for the advice!

Hi did u manage to sort it out. I have xperia z and have same problem. I can play some games but everytime i use 'view in cardboard ' on youtube the screens spin, also when i use googke cardboard apps. Maby its a google problem and not our phones? Like you iv testedband recalibrated my phone byt to no avail
If you got it fixed giz a shout mate
Cheers

Anyone using a VR headset with this ?

Hi,
I got the Procus BRAT VR from Amazon a few days back. I tried using it yesterday, however the phone clamp of the VR is such that the Power button always gets pressed and I end up restarting the phone every time I mount / dismount. I can shift it slightly to the side, but then the phone doesn't align properly to both the eyes.
http://www.amazon.in/Procus-BRAT-Adjustable-Compatible-Cardboard/dp/B01KCLWD92
Also, I can't seem to figure out how to use the clicker and where to stick it on the VR, I tried a few places, but it wont "Click" properly ( atleast I think it doesn't work).
Any suggestions if anyone is using a VR with the Oneplus 3 ? Any good recos ? Any app I can use to test the clicker ?
Thanks

I saw an article a while back about how Mattels toy looking VR headset was one of the best. Picked one up locally and it has worked great for me. Not sure what the clicker is? On the headset the button presses on a spot on the screen and it registers as a click, it doesn't use a magnet on the side like google cardboard did.

dcontrol said:
I saw an article a while back about how Mattels toy looking VR headset was one of the best. Picked one up locally and it has worked great for me. Not sure what the clicker is? On the headset the button presses on a spot on the screen and it registers as a click, it doesn't use a magnet on the side like google cardboard did.
Click to expand...
Click to collapse
I picked up that ViewMaster last year to play with. The clicker is connected to a little rubber finger inside that taps the screen to make selections. For 25 bucks, I couldn't resist. It's been months since I've picked it up though. Didn't look bad with the 2k screen in my LG G4, I'll have to see what it's like with the OP3 when it (eventually) arrives. (Scheduled for today ... but nothing yet!)

TarunN5 said:
Hi,
I got the Procus BRAT VR from Amazon a few days back. I tried using it yesterday, however the phone clamp of the VR is such that the Power button always gets pressed and I end up restarting the phone every time I mount / dismount. I can shift it slightly to the side, but then the phone doesn't align properly to both the eyes.
http://www.amazon.in/Procus-BRAT-Adjustable-Compatible-Cardboard/dp/B01KICLWD92
Also, I can't seem to figure out how to use the clicker and where to stick it on the VR, I tried a few places, but it wont "Click" properly ( atleast I think it doesn't work).
Any suggestions if anyone is using a VR with the Oneplus 3 ? Any good recos ? Any app I can use to test the clicker ?
Thanks
Click to expand...
Click to collapse
Hi. I just got my procus brat for my op3. I too ran into the same problem and stumbled upon your thread while looking for solutions. Anyways. In case it's still unsolved, the package included some peices of styrofoam tape. Stick those on the inside of the clasps that hold your op3 to create a gap between your device and the clasps. This ensures that the buttons don't get pressed. Just stick those at the outer edge of the clasp. Enjoy your VR.

I have the loop vr, good viewer but no controls for gaming
Sent from my ONEPLUS A3000 using XDA-Developers mobile app