Database Users

[Q] G2 Screen Issues

Hello,
I've been having touch screen issues lately, since i rooted and switched to CM 6.1 a couple of weeks ago. The screen will work perfectly for a little while, but will inevitably stop responding. I'm using launcherpro, though i don't believe that's the issue- it happens regardless of which launcher I'm running (I've tried others and experienced the same issue. The optical scroll pad will still "sort of" work- better than the screen (which will respond to the occasional touch after the problem begins, but barely does). If I reboot, the problem will usually go away for a while again, but will recur. I wind up needing to fix the issue once or twice a day. I don't think it's a hardware problem because the reset fixes it, so I assume it is then software. Also, i don't remember having this problem with the stock rom. Has anyone else experienced this, or does anyone have any ideas?
Thanks!

Dunno how useful this will be, but have you tried reflashing CM?
Sent from my T-Mobile G2 using XDA App

Same problem here. But I've noticed sometimes if I'm using the phone not in my hand (on car dock or just on table) this problem seems to happen more...but when I hold it in my palm then works fine.
But sometimes it just becomes unresponsive. Am running virtous's rom on my g2. But I can remember having the same issue when running cm on my g1 days too. Reboot always fixed it, just gets annoying.
Anyone have fixes to this? Thanks!!
Sent from my HTC Vision using XDA App

I personally use GV 7 or sparksmod and. Never had a problem, these are the best roms I think for this phone.
Sent from my HTC Vision using XDA App

Been having this exact problem for weeks now. And I believe it is a hardware problem, probably some sort of short in one of the ribbon cables or the digitizer itself. Occasionally, actually 85% of the time I'd try to open an apparently and the phone would act if I held my finger down and then the apparently icon gets selected...very annoying cus it happens over and over a couple times, all I can do is keep trying until it does what its supposed to. Also with the on screen keyboard when I'm texting it'll act like I'm holding down on one of the letters and keeps bringing up the special characters to that letter...or ill tap delete to delete a spelling error and it'll end up holding it down and deleting my whole damn text and I can't stop it.
At first when this first started happening I could simply tap the screen and it would stop the crap it was doing and work fine. As time went on I noticed I kept having to hit it harder and harder for it to correct it. Wellllll guess what? Last night it was acting up horribly and I slammed my closed hand against it while it was on the desk and it cracked the LCD screen and now the phone is completely useless, even though the outer touchscreen is perfectly fine.
The restarting of the phone also usually fixed it for me as well but only for a few minutes.. which also makes me think its a short because after the phone is turned off whatever part is shorting out, that circuit is closed and just takes time until you press on the screen in whatever spot to cause the two parts to touch and create the short all over again.
Anyways that's my story...just don't get angry and slam down on the screen lol. This is my 2nd G2 and I'm tired of it, probably just going to get a nexus s or just go back to the nexus one, atleast it was reliable.

huh28 said:
Same problem here. But I've noticed sometimes if I'm using the phone not in my hand (on car dock or just on table) this problem seems to happen more...but when I hold it in my palm then works fine.
But sometimes it just becomes unresponsive. Am running virtous's rom on my g2. But I can remember having the same issue when running cm on my g1 days too. Reboot always fixed it, just gets annoying.
Anyone have fixes to this? Thanks!!
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
if you open the battery cover u can see that there are connectors that closes the whole circuit, so when u are holding the phone the back cover works like a grounding area that makes the screen responce to your touch. Acapacitive screen works like this: when you touch in any area on the screen, you simply are breaking the electrical field that the screen has, the screen "feels" where u break it and tells the operating system.
the electrical field depends on the human body a bit to make the circuit complete, so when u touch the metal parts of the phone, the screen works like it is designed.

[Q] Wandering screen alignment??

Hi all,
My trusty blackstone has begin letting me down and I don't know if flashing a new rom will help, or if it is something physical that is breaking / broken. I'm using the Stonehenge ROM with CHT and everything has been fine for months.
Recently the touch screen allignment just seems to 'wander' sometimes just a little, other times quite a lot (so much that using the fake hardware buttons at the bottom of the phone, brings up the start menu). This means that intermittently I cannot answer calls, and typing a message on the SIP is an absolute nightmare!
The start menu icons do not seem to be as affected as the home screen and CHT, and I can quite easily get to the phone settings and recalibrate the screen - this will help for a short while but the alignment drifts again.
Restarting the phone has a temporary positive effect but it doesn't last.
Anyone else experienced this?

I have exactly the same problem.
Dissembled the whole device, blown some hot air but didn't help. Seems it's a HW fault. But I have a doubt whether the problem is in digitizer or in control board.

It's definitely one of the more frustrating problems that I've ever had with the phone.
I might try flash a new ROM then give up if that doesn't work. At least I won't be tempted to disassemble as it has already been tried, tbh I'd have just tried the tin of compressed air too, I don't trust my soldering skills for tiny electronics.
It is getting progressively worse, the touch area of the screen has slipped so low now that I can't use half the screen.

Screen Alignment Fix
Have a look on this one, maybe this will help you...http://forum.xda-developers.com/showthread.php?t=538113

Screen sticking

Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom

XFreeRollerX said:
Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom
Click to expand...
Click to collapse
I haven't experienced or heard of this before, at least as you're explaining it.
Is this accompanied by screen dimming? Did this start after the update to HC3.2?

okantomi said:
I haven't experienced or heard of this before, at least as you're explaining it.
Is this accompanied by screen dimming? Did this start after the update to HC3.2?
Click to expand...
Click to collapse
I use auto brightness, but I do not notice it changing during this happening
I got my XOOM with 3.2 on it

Your device may not be grounded. It's a common problem with touch screen devices. Does this happen when you're holding the device in your hands?

zehkaiser said:
Your device may not be grounded. It's a common problem with touch screen devices. Does this happen when you're holding the device in your hands?
Click to expand...
Click to collapse
I really don't know, let me do some testing and see what circumstances it is replicated under.
How would grounding be determined? Its not charging...
I do have it in a silicon/rubber case. Would that be a problem?

Just for the sake of satisfying my curiosity - if you are experiencing this issue while your Xoom is docked - try placing your fingers on the back of your Xoom and typing with your thumbs.
I am trying to resolve a similar issue that I only encounter while my Xoom is docked at one place in the world - my work. Nowhere else does it do this.
I have installed a power conditioner, with no effect. It happens whenever the power is plugged into the dock. If I use an external power supply it goes away (batteries). I did switch off the florescent lighting and it is better, so it may be EM related. especially since it is a *capacitive* screen.
I have also read of people with other capacitive touch screen devices have the same issue when it is not held in their hands.
Let me know either way.
Thanks,
Frans

XFreeRollerX said:
Anyone else having a weird, intermittent issue with the touch screen seemingly not working right
IE: I try to scroll and instead it makes a tap where my finger lands. Unlocking the screen doesn't work 50% of the time because the lockscreen will just lag out and I have to sleep/re-wake the device
This happens on stock and after i rooted to tiamats rom
Click to expand...
Click to collapse
I have seen issue on gtab where some roms/kernel where having issue with screen calibration, there was a calibration files that could be created in the root with the name calibration.ini and upon reboot it was fixed, I do not know if this is valid for a xoom tho...
with a few rom I had NO issue whatsoever and never reused the calibration...

fransdw said:
Just for the sake of satisfying my curiosity - if you are experiencing this issue while your Xoom is docked - try placing your fingers on the back of your Xoom and typing with your thumbs.
I am trying to resolve a similar issue that I only encounter while my Xoom is docked at one place in the world - my work. Nowhere else does it do this.
I have installed a power conditioner, with no effect. It happens whenever the power is plugged into the dock. If I use an external power supply it goes away (batteries). I did switch off the florescent lighting and it is better, so it may be EM related. especially since it is a *capacitive* screen.
I have also read of people with other capacitive touch screen devices have the same issue when it is not held in their hands.
Let me know either way.
Thanks,
Frans
Click to expand...
Click to collapse
Well you bring an interesting point. The device was in my hands but I was not actually touching it... It had a rubber sleeve on it.
I since got the Motorola hard case which has some areas exposed and I also disabled the lock screen, and I have not been able to replicate the problem at all.
The device was docked at one point, charging, and the problem showed up aagin (recalling from memory). The fix was to power off the screen and re-wake the device. This did involve touching it, so...maybe its an electrical thing?
P00r said:
I have seen issue on gtab where some roms/kernel where having issue with screen calibration, there was a calibration files that could be created in the root with the name calibration.ini and upon reboot it was fixed, I do not know if this is valid for a xoom tho...
with a few rom I had NO issue whatsoever and never reused the calibration...
Click to expand...
Click to collapse
I had this problem with the stock 3.2 ROM. I haven't done any calibration, and don't think I need to: it works perfectly majority of the time.
I'll reenable the lockscreen and try to replicate it again.

Okay I think I'm onto the problem
I opened the case just now, still lock screen disabled, pressed just the power button and the touchscreen was acting up again.. couldn't slide to scroll, but could tap/point only
I then put my thumb on the side, as if naturally holding it without a case, and it started working normally again without any kind of power cycle.
Thoughts?

Have you dropped or jarred your Xoom a lot? Look for threads I started in this forum, I have one that explains this issue and includes a fix. My Xoom is still working flawlessly. I'd link it but pre-calculus is about to start.

Elysian893 said:
Have you dropped or jarred your Xoom a lot? Look for threads I started in this forum, I have one that explains this issue and includes a fix. My Xoom is still working flawlessly. I'd link it but pre-calculus is about to start.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1068499

I bought the XOOM second hand from someone who claimed they hardly used it. Right now sitting infront of me, the bottom right, on the back edge, there is a small pressured crease as if it was dropped (looks like the corner of my phone when i dropped it on tile).
I personally have not dropepd it, but I throw this thing onto my bed all the time, it fell out of the dock onto my hard desk once, so yeah its been knocked around.
Will doing that mod void the warranty?

I found no warranty stickers or screws when I disassembled it. The back cover is made to slide down so that Moto can do the 4G upgrade, so I doubt they want to be fooling with that type of thing anyways. I can't say for certain that sticking a piece of foam in the back of your Xoom won't void the warranty, but I can say that it fixes the issue(which also could be covered by warranty if you can get someone to believe you've got the issue, I however could not, so I had to take it upon myself).

Alright
I just ran into the problem again playing a game.. seemed like the right half of my screen just stopped working intermittently. Kept playing and it returned to normal.
I may pop it open and try the foam thing. I'm pretty good with disassembling laptops.. I can't see this being much harder.

Touchscreen erratic behavior makes phone unusable

Ok, so I have a brand new Moto X Style (XT1572) bought in the UK.
After the initial 10 days when everything was working fine, the touchscreen has began showing some really irritating erratic behavior:
When I swipe, the screen interprets it as a touch
Single touch is sometimes doubled (for example, with the back navigation button)
Pulling down the notification bar gets it half way, then the phone thinks I have removed my finger so pulls it back up, even though my finger is still on the screen
The phone has never been dropped, no water splashed on it, no nasty handling, I am always extremely careful with all my devices. And the phone is not rooted or altered in any way.
So far I have tried the following, but none solved the issue:
Forced rebooted the device.
Reset to factory settings.
Re-reset factory settings and not install anything for 2 days except Twitter and Chrome.
Changed 3 different launchers besides stock.
Changed apps with alternatives.
Reset apps, reinstalled apps.
Removed screen protector and repeat previous steps.
Tried both with the fast charger connected and not connected. With factory provided cable.
Tried both with a normal charger connected and not connected. With factory provided cable.
The problem appears at random times/apps, anywhere there's scrolling involved: Chrome and Twitter are the most obvious. I have never unwillingly clicked on so many ads in the past as I have since this problem started. Worst part is that the phone decides for me if I want to touch or long touch or scroll, so it opens pages/tweets/apps I don't want to open. All at random. And then, after a while, it's fine. And then it starts again.
As you understand, the phone is unusable during the times it behaves erratically.
Not a happy first-time-Motorola customer here. Any ideas anyone?

I've made a post about weird screen issues where randomly it registers a swipe as a touch, and if you hold down on that touch, the screen goes insane and freaks out.. but the second I lift my finger up and put it down again it's fine... therefore it wsnt much of an issue for me.
Sent from my Moto X Pure Edition

I've been seeing weird stuff too. Force closing of games that play perfect on my original Moto X too...?

I think this is a result of the slim bezels. I noticed that most of the problems I have is when the skin from a finger holding the phone seems to be too close to the screen and it's registering it as a contact. Of course, this causes it not to interpret the contact you're intentionally making correctly.
My solution theory: use the included bumper or a case and see if you still have the problem. The case/bumper should help prevent unintended contact.

still have the problem with the case. it's weird Phantom touches that happen. I feel like it might be software, but idk.
Sent from my Moto X Pure Edition

Just coming back to say that the problem was not software related.
It was THE BLOODY CASE!!!
Can't believe it, can you?
It was an i-Blason Halo Series Hybrid Clear Case / Cover with TPU Bumper.
The edge of the case was registering touches on the screen!!!
Now in search of a new case.
BTW, I'd like to thank @jayochs and @AtLemacks for the great hint.
Still can't believe it...

weird. I have a regular TPU and it still does it. does it even without a case at all.
Sent from my Moto X Pure Edition

jayochs said:
weird. I have a regular TPU and it still does it. does it even without a case at all.
Sent from my Moto X Pure Edition
Click to expand...
Click to collapse
I have the same issue and a TPU case as well. I've found that locking and unlocking the device helps temporarily, but the issue soon returns. Obviously, this is not ideal... It's driving me insane.

Same issue here. Tried downgrading to 5.1.1 but the issue persists. Now I am going to try custom firmware. I Live abroad so I can not receive replacement

For all with the same issue, try operating your phone without a protection case for a few days. I found out this was the reason for the erratic behaviour.

I have been having this issue as well. It happens a lot when I am swiping text, or scrolling. When scrolling, my touch is sometimes registered as a 'click.' While swipe typing, it is as though my finger is removed then replaced, like the touchscreen input is skipping.
I will try removing the case, although this happens also when I am not holding it (phone on table). I think it might be possible that I need to push harder on the glass protector, except that the OP tried not using it altogether.

I found this thread which mentions adding some tape to the touch screen connectors.
Several people claim it solved their problem. I tried it without any success, but maybe it will help someone else.
https://www.reddit.com/r/MotoX/comments/4rykk7/moto_x_pure_ghost_touches_should_i_buy_a_new/

Galaxy S7 Edge strange behavior, Random touch input

Hello folks,
I've googled a lot but maybe I used the wrong terms or it's a rare problem. But my phone has a small annoying bug. The bug I'm facing was always there but after the latest update it occurs much more.
Most of the time it happens when you unlock the phone and start typing. In the video below you can see the problem.
Sometimes the recent apps and back button refuse to work while this happens. Not always.
Is there anyone else that suffers from this strange behabior?
I allready tried to remove the TPU case but that didn't solved the problem.

roylee01 said:
Hello folks,
I've googled a lot but maybe I used the wrong terms or it's a rare problem. But my phone has a small annoying bug. The bug I'm facing was always there but after the latest update it occurs much more.
Most of the time it happens when you unlock the phone and start typing. In the video below you can see the problem.
Sometimes the recent apps and back button refuse to work while this happens. Not always.
Is there anyone else that suffers from this strange behabior?
I allready tried to remove the TPU case but that didn't solved the problem.
Click to expand...
Click to collapse
the solution is simple,just make sure ur fingers aren't wet!

Over a period of time (if you looked at your phone at an angle with the light reflecting off) the Gorilla Glass the phone needs to be wiped down, preferably with a micro-cloth (the same type you use on glasses). The oils on your hand, combined with sweat/water, can do freaky things with the touchscreen.
I have been using a stylus most of the time to type and interact with my S7E phone. Not only that I like it better I find it with my big fingers I am more accurate when I am typing and interacting with the phone.
But do not forget this S7E is completely covered with Gorilla Glass and needs to be cleaned like all other types of glass does...good luck.
Cheers!
《♤》Sawuwaya / Spirit Wolfe 《♤》
Sent from my SM-G935P using Tapatalk

The exact same thing is happening in my case (atleast has become more pronounced since the latest update), the recent apps & back button become unresponsive after you unlock the phone and there are random ghost touches. The problem seems to normalise after you lock & unlock the phone using the power button. Any insight on the same would be helpful.

I cleaned the phone multiple times. Actually I clean it every day.
As arun.subrm says. It goes away when you lock and unlock the phone.
Very strange. Actually it gets worse after every update. Today it happened over 3 times in 4 hours. Rediculous and very annoying. It makes it an unreliable product this way. You don't know when it will happen.
Still waiting for that moment when I accidentally buy a living room couch on ebay or something xD.