touch screen issues - Nexus One General

Anyone else having their touch screen stop working property until they have to reboot? It's like it gets way off on where I'm actually clicking.

I have experienced that, but only after I had flashed the modaco rom. I basically returned to stock firmware this morning and am having to re-root my phone...

I have had a couple of occasions where it doesnt seem to respond correctly.
For me its like it looses the calibration, seemed to noticed it when the device is tilted horizontally.
reboot sorts it, only happened once or twice though.

If the phone is in your hand, make sure your other fingers aren't curling over the screen around the edges to much.
I noticed this happening, and backed my fingers off around the edge of the screen and it started working fine immediately.
I think the screen is just extra sensitive.
Curious if that helps.
-James

jmacdonald801 said:
If the phone is in your hand, make sure your other fingers aren't curling over the screen around the edges to much.
I noticed this happening, and backed my fingers off around the edge of the screen and it started working fine immediately.
I think the screen is just extra sensitive.
Curious if that helps.
-James
Click to expand...
Click to collapse
I read somewhere (maybe on this forum even) that non-multi-touch systems have this problem. Have the same issue with my HTC Magic, but after a while you learn of a way to use the device single-handed while not touching the screen.

I dont know if this helps or not but I have no idea what you guys are talking about

JoshHart said:
I dont know if this helps or not but I have no idea what you guys are talking about
Click to expand...
Click to collapse
The calibration problem (the screen registers a wrong spot than where you touched) comes up if you try to use a non-multi-touch phone single-handedly, so part of your palm (between the thumb and index fingers) touches the edge of the touch screen. Especially if you are trying to reach a top area of the screen while holding the phone with just that hand, likely some part of the palm touches the bottom of the screen.
If you want to try having the problem, you can touch the edge of the screen with a finger and try to click a link with another. It won't register the right spot.
Supposedly the problem should go away as soon as you lift that body part up from the screen.... so I don't know if this helps the OP or not.

same issue
http://forum.xda-developers.com/showthread.php?t=615711
does not look like its happening all the time. Ran few tests and still can't duplicate the problem in order to find the cause. so far this happened about 3-4 times on my phone.
i hope this gets resolved soon and that its not the touchscreen issue.

jmacdonald801 said:
If the phone is in your hand, make sure your other fingers aren't curling over the screen around the edges to much.
I noticed this happening, and backed my fingers off around the edge of the screen and it started working fine immediately.
I think the screen is just extra sensitive.
Curious if that helps.
-James
Click to expand...
Click to collapse
I've had this exact thing happen to me a few times. I notice the tip of a finger on the edge of the screen, move it, then it works fine right after. Sometimes happens with the base of my thumb hitting the bottom left corner too.
Just make sure you're not accidentally touching any of the touch area and it'll work fine.

same here
i have just created new thread, this one wasnt here when i first looked http://forum.xda-developers.com/showthread.php?t=616418
mods, could you please link togther posiibly.
also there is google help forum where this issue was raised http://www.google.com/support/forum...ff&hl=en&fid=2a024bb25d4496ff00047cead2b2c2ad
would be nice if everyone experiencing this post it to google thread

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Touch Screen Stops Working
jchap2k said:
Anyone else having their touch screen stop working property until they have to reboot? It's like it gets way off on where I'm actually clicking.
Click to expand...
Click to collapse
I have had this same issue on my G1 as well a N1. This problem only happens from time to time, as happes with stock ROMs and custom ROMs.
For the N1, I was initial pulling the battery; however, I have found that if I hold the power button down (don't let go) and then touch the screen to unlock or power if off.
I have a friend with the Eris who was having the same problem; Verizon released a patch earlier in the week that seems to have solved the problem for him.
Jeffro

jhales said:
For the N1, I was initial pulling the battery; however, I have found that if I hold the power button down (don't let go) and then touch the screen to unlock or power if off.
Click to expand...
Click to collapse
You can perform a soft reset on the Nexus One by holding volume down, the trackball, and pressing the Power button on top. A half second later, your phone will reboot.

I am also having these touch screen problems, and I can confirm I am not touching any other part of the screen to have it interfere with the non-touch-screen interface. I been testing with what people has been saying on here with having any other part of the screen being pressed, so I have been testing it out and I can say its a different response then what I'm experiencing.
Here is what is going on with my nexus one:
1) it happens at random times (my device is on my table and I am pressing buttons with one finger)
2) it only affects the bottom-left portion of the screen when it happens, touching everywhere else is fine
3) it thinks I'm pressing an area around the soft keys, an example is if I press 'A' it thinks I press either the '?123' or the 'back' button, same if I press 'd' it thinks I'm pressing the 'menu' button.
I can conclude that since not all nexus one owners has this problem it is a device issue, which what is going on is probably the same as if someone was accidentally pressing a part of the screen, but it could be part of the device is assembled incorrect or deformed. The physical form of my phone is off on the right side, I can feel the gray plastic part next to the black border next to the right of the screen is a little more raised then the left side.
But there is my experience with whats going on to me and my two cents.

Ive had this a little bit on my device as well, but I think it's a software issue since it went away when I pressed the home button.
edit:
Also it has happened exclusively in Dolphin browser

here too
Sporadically, it happens with my N1 as well. When pointing at the middle of the screen (in a list for example), the input registers 2 cm below my fingertip. Rebooting fixes this temporarily but it is annoying.
A SW update could perhaps cure this behaviour?
rgds
Daniel

I just had this happen for the first time, all my presses were registering way below where i was touching, tilting into landscape in an app then back to portrait fixed it for me.

So now it happened to me too. I have the Nexus One for almost two weeks and I never had the unresponsive touchscreen. Of course I noticed that the center of the softbuttons is shifted upwards and that they don't register very well in the middle where they should and I had the problem before that the sms text input box didin't registered in the center so that the keyboard wasn't popping out but that is all only a problem of adjustment. Today in the morning after my phone was on standby over night I put in the charger to charge it and I got an email with pictures. I scrolled through the email and all of a sudden the screen became totally unresponsive. I tried to scroll and the screen registered at a complete different place. All of a sudden the email was gone because the phone registered the delete button even though I never pressed it. I could close the gmail program but I had a hard time to scroll between the home screens and the live wallpaper became unresponsive too. I decided to do a restart but I had a hard time to press the shutting down button because it was unresponsive too. This all happened not after heavily usage of the phone but after maybe 1 minute usage.
I am sure that I didn't touch another part of the screen when this occured because I realized before already that the screen becomes wacky if you touch it at two different places (lack of multitouch, so stupid to disable it). I hope that this is a software issue too. I can live at the moment with the 3G problem because it doesn't stop me from using the phone. The unresponsive touchscreen scares me more because because it becomes completely unusable.

i've noticed this with low battery. Twice its happened to me, the first time was when i first recieved the handset. and secondly was this morning when my phone was off with no battery again.
anybody want to leave their battery to empty out and try test if this is correct?

I've had this happen a few times in the ten days i've had the phone. I always make sure I'm not double dipping on the screen, and its easy to do since it will exhibit this behavior for a few minutes.
In my experience battery level has no effect on it.
A reboot always fixes the issue.
I figure it's software based.

Related

Am i the only one with this touch screen problem ?

Sometimes the touch screen is WAY off and only restart is fixing it. Noticed this 2 times already.....
I've noticed this too. I was using the browser, and my screen presses were registering as all sorts of random things (like pressing the middle of the screen would press the zoom button). Restarting the browser seemed to fix it.
Add it to the nexus one issue list.
Postal76 said:
I've noticed this too. I was using the browser, and my screen presses were registering as all sorts of random things (like pressing the middle of the screen would press the zoom button). Restarting the browser seemed to fix it.
Click to expand...
Click to collapse
that's from a lack of multitouch. your hand is probably just barely touching the lower corner of the glass. when you press again in the middle, it registers on the softkeys. it is one of the things I *HATE* about this phone. I always seem to be touching the screen on the very edge. you almost cant use it with just one hand.
I find that I do that with my HTC Magic sometimes as well, the 'webbing' between my thumb and index finger sometimes touches the corner of the screen and brings up the 'app menu' in my left hand, or the 'add widget' menu in my right hand (sense ui). Just another general thing about touch screens and their placement
the four touch buttons arent that accurate. didnt have this problem on the droid. i rarely miss it there but on the nexus is becoming 50/50 chance of it not registering.
Lol how are you guys holding the phone, i always use it one handed and havent expirienced this, i guess everyones different.
bradsh1 said:
that's from a lack of multitouch. your hand is probably just barely touching the lower corner of the glass. when you press again in the middle, it registers on the softkeys. it is one of the things I *HATE* about this phone. I always seem to be touching the screen on the very edge. you almost cant use it with just one hand.
Click to expand...
Click to collapse
This not necessarily a problem with this phone in particular. It is a phenonema that happens on all capacitive touch screens (that do not have multitouch). I work with them all the time (much larger scale) and the slightest touch on a border results in what appear to be calibration issues.
Multi touch takes into account for this, non multitouch does not.
This has happened to me also. Same exact thing, in the browser, the touch was way off, really way off. I was pressing the middle and the zoom button pressed. It was on the table so I know my other hand didn't touch it. It was also vibrating sometimes when I pressed the middle of it. Restarting seems to have fixed it for now.
happened to me in SMS and browser and the only fix was restart the phone.....so its not me accidentally touching the screen in another point.
ps. its so bad that i couldnt even use touch screen to power off the phone. i had to use track ball. (now i know why its there )
I've had this problem as well as other with touch screen. Sometimes I will hit an icon on the main screen and it will jump screens. When I'm in the menu's i hit one of the options and it goes to the one underneath it. I'm CLEARLY hitting the option I want and not the one below so it is infact a hardware problem in my case. I will be in the browser and hit a button and it will exit out of the browser, very annoying! Mine is unlocked but I wrote HTC so lets see what they say.
its a known prob with this phone, ppl are complaining all over Google forum, its very annoying, when it happens it doesn't just happen in the browser, also in text message n home screen ect...
jamesyb0i said:
I find that I do that with my HTC Magic sometimes as well, the 'webbing' between my thumb and index finger sometimes touches the corner of the screen and brings up the 'app menu' in my left hand, or the 'add widget' menu in my right hand (sense ui). Just another general thing about touch screens and their placement
Click to expand...
Click to collapse
Webbed fingers are gross.
I have now experienced this definitively once. It happened while using the dolphin browser. I wiped the screen off, set it on a table, poked with only one finger, and could not for the life of me get the software keyboard to click on the correct button. Just wouldn't happen. Had to restart the phone to fix it. But it's only happened once since I got the thing on launch day.
^ same thing for me. Does the OTA fix this, I have not received it yet. Wish I saw this before I created a thread, sorry.
s15274n said:
^ same thing for me. Does the OTA fix this, I have not received it yet. Wish I saw this before I created a thread, sorry.
Click to expand...
Click to collapse
i dunno, but touches (especially multitouch) seems ALOT more responsive and accurate than before i did the new update... i used dolphin prior and pinch zooming seemed jittery and like the phone didnt want me to do it... now everything seems smooth as butter!
obviously this is only short term though, but hopefully this fix will also address some of the calibration issues (that i also experienced) that the N1 has been known to have...

screen calibration

is there a way to calibrate the screen? sometimes feel the click is not accurate.
no, these screens should not need calibration anyway. If you're talking about the click being off a little on the home screen I have that as well, but it seems to be limited to the Live Wallpapers. If its off by alot you should send it back for replacement.
when i click the dot, sometime the search box pop up. the dot is above the search botton
dot? what dot?
melterx12 said:
dot? what dot?
Click to expand...
Click to collapse
I think he means the dots at the bottom of the screen to move from one screen to another on the Home launcher. The dot(s) is/are right above the search button on the bottom right of the screen.
oh, yeah that does not sound normal. try restarting and if the issue persists you mgiht want to consider sending it in.
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
here u go
http://www.google.com/support/forum/p/android/thread?tid=04134c63c784258e&hl=en
bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
are you sure you aren't touching another part of the screen?
Sometimes the palm of my hand touches the bottom left of the screen and that will cause random touch events.
You need to touch slightly above the dot. Otherwise your finger is very close to the google search soft key.
dwang said:
are you sure you aren't touching another part of the screen?
Sometimes the palm of my hand touches the bottom left of the screen and that will cause random touch events.
Click to expand...
Click to collapse
I know for fact that sometimes I DO touch other parts of the screen like with my palm, etc by accident. however there have been cases where this wasn't happening and I still have miss touch events.
Example. I was holding my phone with my fingers in landscape with my left hand, and using only the pointer finger of my right hand to touch something in the middle top of the screen, at which point the phone pulse vibrated and the quick search screen popped up.
I posted to the google link outlining the different events that I have noticed. Multitouch would fix point averaging between somewhere you're accidentally touching and where you intended to touch. This however isn't the only thing going on, as I do believe there is some random strangeness occurring. I never had any such issues with my G1.
bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
it happens to me,too, i thought it is caused by my palm touched the edge of the screen when i clicked using finger, but it is not. when i restart the phone, it,s gone.
mattyboy247 said:
I think he means the dots at the bottom of the screen to move from one screen to another on the Home launcher. The dot(s) is/are right above the search button on the bottom right of the screen.
Click to expand...
Click to collapse
yes. that's the dot.
I read from another reviewer, he said the sensor of the soft key is located a little above the icon for the key. this may cause the problem.
cuitao said:
yes. that's the dot.
I read from another reviewer, he said the sensor of the soft key is located a little above the icon for the key. this may cause the problem.
Click to expand...
Click to collapse
This messes up pretty much everyone I hand my phone to look at/play with. Its fine if you're aware, but it does show a sign of less refinement in a device that would have been nearly 100% free of hardware design flaws.
I feel the same way, especially with the soft-buttons and the "p" key in portrait mode. Last night after walking a bit outside my key-presses were atleast an inch off.....I attributed that to my fingers being a little staticky.
Othertimes my fingers just never work on the screen for a few seconds, rubbing my fingers together fixes this problem.
Something to do with http://en.wikipedia.org/wiki/Capacitive_sensing I guess
I find that sometimes my fingers wrap around the phone and just touch the front edge of the screen while holding it, causing random key presses. I guess I'm still used to holding the wider and less sensitive Touch HD.

[Q] Touch Screen Problems

Is anyone else having problems with their touch screen?
It will occasionally become unresponsive, and other times will just start 'clicking' repeatedly in random spots.
I find myself having to turn the power off and on (via the button, not a hard power cycle) to fix the issue. Its starting to get annoying.
Anyone else?
Yes, I am getting the same thing but I've found that if I just turn the screen off and then back on it fixes the problem. I don't need to reboot.
You think this would warrant an exchange? or is it just how its going to be?
I've put several hours on mine, but haven't experienced this issue. I don't know, if this happened to me more than once, I probably would exchange it.
It was happening to me all the time. I had to get a screen protector and haven't happened since.
ryoojin83 said:
Is anyone else having problems with their touch screen?
It will occasionally become unresponsive, and other times will just start 'clicking' repeatedly in random spots.
I find myself having to turn the power off and on (via the button, not a hard power cycle) to fix the issue. Its starting to get annoying.
Anyone else?
Click to expand...
Click to collapse
gigadigit said:
It was happening to me all the time. I had to get a screen protector and haven't happened since.
Click to expand...
Click to collapse
Very good "solution" to what should be an obvious problem. The Nook Color has a *capacitive* touch-screen. If you get "junk/gunk" on the screen, it's gonna cause you issues. I find this to be the case while holding my NC and playing Flight Director for a while. The issue: My hands become sweaty and as a result of the slight film of sweat/oil on the screen, the NC's ability to measure the capacitive changes on the screen (and react appropriately to them) is compromised.
Keep your screen clean and you won't have this issue.
Note: after you wipe the screen down (damp cloth, etc), you will need to click the power button and go the lock screen and then back into the NC before it works right directly after cleaning the screen. The dampness of the cleaning cloth throws up the calibration enough to cause very strange things. My experience with "correcting" this issue tells me that in some way, the NC is recalibrating itself when you go to the lock screen.
johnopsec, this has been my experience as well. After cleaning the screen from finger-jam i don't get the phantom clicks. I also noticed that because I live in a very humid climate (Florida panhandle) there will be a thin moisture layer buildup sometimes and it really helps to wipe this off. I also have an incredible that does not have this problem but it has a screen protector which, I am guessing (and as gigadigit expressed), fixes the problem. Just make sure the screen is clean and dry before applying!
screen response
Also,
If you are holding the side of the case by the screen this throws off the touchscreen, I was having the issue where it would be clicking and multiple letter inputs when typing.
Also when it is laying flat and you have the power cord plugged in you may get multi letter inputs.
The trick, hold it by the back not the sides.
and if you have it plugged in and need to type don't leave it laying flat.
I have experienced this problem and loosely seen it correlated with moist fingers.
no moist fingers here and on my 2nd nc. this ones starting to have the ghost touches too.
My Nook Color started acting up after paying levels 3-4 to 3-6 of Angry Birds. I'm not sure if Angry Birds caused the issue or not as I haven't gotten it to do it in another app. I'm running 1.4.2. Doing a lock and unlock fixes the problem until it returns.
I managed to get Phone Tester to run after it got into this state. I made a video of it using a crappy webcam. There's a stuck finger in the corner.
youtube.com/watch?v=OdcVG-Q8LS4
Touch Screen issues while unit is plugged in..
It seems I have read on some forums that some people have screen issues.
Personally I didn't experience this until I tried to use my NC while plugged into it's wall charger.. It seems to act as if it has a grounding issue, which is not the case when the unit is unplugged.
So when you are running your multitouch or touch tests, do it without the unit plugged in..
-CC
I have had the same problem with my touch screen. I have the nexus live wallpaper and whenever you touch the screen it sends off the animation. Well sometimes it just goes non stop and sometimes opens up the window where you can apply a widget. I guess the most practical solution would be a screen protector but if not ill restore it and send it off to B&N
There's a small little app in the market named "Nook Screen Recalibrate" this app is super simple and easy to use. I hope this helps
https://market.android.com/details?id=com.assid.android.nookrecalibrate&feature=search_result
Here is the issue I have...
Right is the N button side. Just a reference point for this.
Reboot the Nook (I use CM7).
Bring up the keyboard
Touch Q in the center - you get W.
Touch Q on the right - you get W
Touch Q on the left - might get Q but you usually get W.
Recalibrate using the Nook Screen Calibration (above).
Q now gives Q unless you press on the right side of the key. I also notice I still have to hit the back arrow more to the left or I bring up the keyboard.
I've learned to live with it, but the left side of the touchscreen is slightly off and you have to touch to the left side of any object on the last 1".
Awats said:
Here is the issue I have...
Reboot the Nook (I use CM7).
Bring up the keyboard
Touch Q in the center - you get W.
Touch Q on the right - you get W
Touch Q on the left - might get Q but you usually get W.
Recalibrate using the Nook Screen Calibration (above).
Q now gives Q unless you press on the right side of the key. I also notice I still have to hit the back arrow more to the left or I bring up the keyboard.
I've learned to live with it, but the left side of the touchscreen is slightly off and you have to touch to the left side of any object on the last 1".
Click to expand...
Click to collapse
yeah, for me it's the edge of the screen along the right side. it's less sensitive then the rest of the screen. I found that calibrating 2-3 times really works best.
There's also a fix in the nookwiki, but i can't get my adb to work on my laptop, I think its the drivers.
http://nookdevs.com/Recalibrate_the_NookColor_touch_screen
What is the left and right side?
I should have said that left is the side opposite the N button.
I downloaded Multi-Touch Screen from the market and I can see part of the problem is the angle of my finger. Straight on it's better.
Nook Color Touch Screen Problem
Having similar problem as described, after two years. Extended warranty expired ... two weeks ago (of course).
Tried cleaning screen, no help. Have not tried screen saver yet, but will.
In the meantime, I notice the comments about touching the sides, and I noted that as well.
Is it possible that this could be helped by opening it up and re-seating the case? Has anybody tried this?

Touchscreen loosing input.

My touchscreen is almost suttering, like i hold my finger down it will undetect it for a millisecond or so every few seconds, this makes it almost impossible to do my pattern (unless really quickly).
Tried multiple roms, all the same.
Can someone install multitouch test and tell me when they hold there fingers down if it resets, every 1-60 seconds? You'll notice a very quick dissapearance of the blue dot / text.
Thanks,
Ryronz
Okay ignore me, im being newb. Appears to be Digitizer, if i press firmly on the bottom half of the screen it sets it off. Will see about replacement.
If you're talking about the unlock screen, did you see my thread which describes similar symptoms to yours? There's a fix there too.
http://forum.xda-developers.com/showthread.php?p=13604352
xurizaemon said:
If you're talking about the unlock screen, did you see my thread which describes similar symptoms to yours? There's a fix there too.
http://forum.xda-developers.com/showthread.php?p=13604352
Click to expand...
Click to collapse
Well I have a pattern lock, its not so much that its unresponsive. Because its perfectly responsive, so it just keeps thinking i've lifted my finger off.
For example, if I want to long hold an app to move it, it'll just open it, because after about 1 second it resets input, so it thinks i've just touched the app as opposed to actually holding on it.

Ghost screen touches

Just got myself a transformer today and it seemed great, however right after about 5 minutes the thing goes nuts like someone is swiping or touching the screen. Mostly just one spot on the left side and it will do it whether I'm holding it or it's sitting by itself. Can't seem to find anything posted about this wondering if thats because it's not common or I'm just not looking for the right stuff? Any help would be great, will likely return it tomorrow anyhow but if there's a fix would be nice.
Yeah, I got this as well while playing Angry Birds (F'd up my scores ! ). I don't know if it will work for you, but I just cleaned the screen really well with a cotton ball and alcohol, dried it, then used a microfiber cloth to clean it up (the ones that come with glasses, screen protectors). It worked for me, i think there was some gunk on the screen and was registering as a touch..
Try a factory reset and if it doesn't work take it back for a new one.
Thanks I can't see it being something on screen but will give it a wipe done here in a minute. Also tried the factory reset seemed to help but still getting in same frequency just not as badly. will see if the cleaning doesn't work I'll take it back and replace it.
This is the biggest annoyance that I have as of recent.
I have particularly oily fingerprints which causes smudges constantly.
I love the sensitivity of the TF, but if there is excessive smudging, the residue will register as a screen input - Wish the sensitivity could be adjusted.
Weird things happen when I need to clean the screen... I.E. I will be using a browser and use a single touch to scroll down, but it will zoom in/out instead; the long press menu will show up in a random spot persistently; -or- the screen will be completely unresponsive.
When this happens - I turn of the screen, clean it, turn the screen back on, and I'm good to go (note: sometimes I cannot even see any smudges where I am having issues).
This happens to me FREQUENTLY when i use the tab outside during humid days. I am thinking a screen protector may help, but still havent gotten one to try it out.
I had this same problem before the touch screen completely stopped responding on me.
For mine it only happened after waking it up from sleep mode though. When I turned Timeout to Never the ghost touching stopped.
Well tried as suggested the cleaning of the screen and all that but it still did it so took it back to the store got lucky and they still had one left, and exchanged it. New one hasn't had any issues at all. Thanks all.
I just took mine out of the box for fun (it was packed up for rma) and when i turned it on the touch screen worked. The ghost touching stopped to. But i still have a strip from top to bottom on the right side of the screen that registers two touches . So ill probably still send it in for a replacement.

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