I had the same problem with my Droid Inc., especially when i used a two dollar ebay charger but still with the factory one as well. Maybe every 10th touch get some reaction but thats it. I assume it has something to do with the capacitative screen but that means there some serious leakage in the charger...
By the way, this took me 5 minutes to write, this keyboard dock lag is really getting iritating.
wait, so are you saying you get lag on your touchscreen when you'red docked in as well since the dock charges the transformer?
I sort of knokw what you're saying, as this happened on my HTC evo a while back, but was fixed through kernel tweks and updates, but i've yet to come across this on my TF while docked/undocked both on and off the charger.
If you're updated on the latest firmware, and still doesn't work properly, i'd try a factory reset, or do a return/rma.
i understand that there is a slight lag when typing on your dock, but mine's barely noticeable once i get my writing going. This whole thing took maybe couple more seconds to write than it would on a regular laptop keyboard, if even by that much. I only notice lag when i'm deleting or backspacing.
If its charging off the dock its fine, its when either is plugged into the charger does it present itself.
The keyboard lag is a general issue. Yes im up to 3.1.
This happens on a number of tablets. The Nook Color has issue with not recognizing taps, entering double characters, or freezing while charging.
And then if your fingers are wet all bets are off. It goes into a loop with screens flipping back and forth.
Related
Wondering if anyone else has had issues with the touchscreen sensitivity. Occasionally my screen freaks out: swype grabs all the wrong letters, drawing a jagged line instead of a smooth one; the unlock screen refuses to recognize my presses, or jumps all over the place. Other times it just won't respond. I've already started an exchange process, but I'm curious if anyone else is having this issue.
Oh, it happens whether rooted or not, custom rom or not. Right now I'm 100% stock for the exchange.
Also, my search of the forum found nothing.
Thanks.
Sent from my SPH-D700 using XDA App
I tested with the multi touch visualization tool, and sure enough, the screen registers touches that aren't there, and the test jumps all over the screen regardless vb off how still I hold.
Sent from my SPH-D700 using XDA App
The only thing that I could think of is that at some moment, your CPU is becoming very busy and not registering inputs correctly. However, I haven't noticed the symptoms you are describing. Sounds like the digitizer is not working properly.
I thought that might be the case. On your post, I restarted my phone when the symptoms started. No dice.
I called Sprint, and have a replacement on the way.
Sent from my SPH-D700 using XDA App
Good deal, hope your new one responds normally.
my touch recognition was going crazy when I plugged my phone to charge thru some cheap usb charger from ebay, it has the same specs (5v 1a) as my HTC charger which worked fine on Epic. So that was weird.
DiNoise said:
my touch recognition was going crazy when I plugged my phone to charge thru some cheap usb charger from ebay, it has the same specs (5v 1a) as my HTC charger which worked fine on Epic. So that was weird.
Click to expand...
Click to collapse
I isolated the behavior while the phone is charging. It's really bad on the cheap charger, but still happens on the Samsung stock charger - with both phones.
I'm at a loss now. I can't use my phone while it's plugged in.
Yes, I have the same problem and it only happens when i have it charging. It becomes useless because it completely ignores all touches.
I also deduced my touchscreen issues to it solely happening when the phone is plugged in. It seems to be some sort of grounding issue; having two different grounds when the phone is plugged in. This is a big no-no.
Hey guys,
A friend of mine recently bought this tablet and everything was running very very smooth, until he received the OTA to 3.1 . Besides the wifi bug ( very easy to get rid of ), he is now experiencing a really really weird touch lag. Let me explain: as soon as he plugs the tablet in the charger the touch gets really unresponsive forcing him to slide/touch several times before the tablet detects the input even if the system keeps working as it should, ie no slowdowns etc.
Funny things is this bug only shows up (for now) when he plugs the charger in university while not happening at home.
Has anyone experienced the same? Im starting to think that the charger plug has a defect and is in some way affecting the touch system ( electric\magnetic stuff ) leading this to an hardware related problem, but I want to be sure so maybe we will try to flash something (Are there Acer tools to flash full stock roms?). Tablet is running original rom and recovery, I just messed with the wpa_supplicant files but I dont see how this could be related.
Thanks in advance guys
When my screen is off and I turn it back on when I switch from charger to battery I get laggie for a minute. Same on my notebook and my cell.I believe its to do with changing some power profiles/settings. If you recover in a minute or so its prob fine. If not watch running apps. If you see something running all the time.use a freeze program to trouble shoot if its a rouge app.
Hope this helps to troubleshoot your isssue
If im wrong with this information please just give your correct response to the open. Do not bash my openion.thanks
saw one other thread with similar problem...
http://forum.xda-developers.com/showthread.php?t=1166209
~~~~~
110 volts
I live in indiana.
When you plug your charger in the fram becomes hot. 110 volts to earth. Just check it, can't be good.
shaun298 said:
I live in indiana.
When you plug your charger in the fram becomes hot. 110 volts to earth. Just check it, can't be good.
Click to expand...
Click to collapse
Fram? 110 volts? What are you talking about?
More details - please. "110 volts to earth"? Not making much sense.
My guess, and its just a guess, is that his charger is somewhat faulty and not regulating the power correctly. Ask him if he plugs straight to the wall at university and into a power strip/surge protector at home. If he is, then I would imagine that the power strip is regulating the voltage enough to let the charger work, where the wall outlet is making the charger fail. I'd try a new charger if one is available and see if that fixes the issue...or take a surge protector with him to university and see if that also takes care of it. If he isn't using a power strip at either place, then we are back at square one.
Have you tried going back to an unmodded system to see if that works? (by that I mean remove/undo wpa supplicant).
I have no idea what that problem could be as it seems hardware based by just reading what you typed, but it could be software too which is called into question by the little mod you did.
What I find odd is that it works in one place and not another.
Does it happen when Wifi is off completely? (Just asking because I'm thinking if it has to do with the wifi mod you made, perhaps turning Wifi off and testing would show up something).
I'll just tell you what I would try in that situation.
1. Go back to a stock ROM, fully. No mods, no root, no hacks. Preferably one designed for your region. (We have no idea if any of the hardware in these units is different based on region, which is why I never recommend putting a ROM on the device unless it's 100% certified to be originated from a device purchased within that region).
2. Factory reset. (It doesn't fix everything, but it fixes most software glitches - especially when they're caused by outside sources like apps or settings mess ups).
If it still happens after that then you've at least ruled out all software suspects.
The frame of the a500 is hot. The charger is none polorized so makes no difference which way you plug it into the wall or extention plug is the same. Check your charger to earth and you will see line voltage no mater where it's pluged in, and don't have to be pluged into the a500. They need replaced. Just meter from the outside of the charger plug to ground and you will see the problem. Might not be on all chargers, but I would check mine.
Just check you charger plug to earth without the a500 pluged in, the problem is not in the unit or software just the charger.
teuz said:
Hey guys,
A friend of mine recently bought this tablet and everything was running very very smooth, until he received the OTA to 3.1 . Besides the wifi bug ( very easy to get rid of ), he is now experiencing a really really weird touch lag. Let me explain: as soon as he plugs the tablet in the charger the touch gets really unresponsive forcing him to slide/touch several times before the tablet detects the input even if the system keeps working as it should, ie no slowdowns etc.
Funny things is this bug only shows up (for now) when he plugs the charger in university while not happening at home.
Has anyone experienced the same? Im starting to think that the charger plug has a defect and is in some way affecting the touch system ( electric\magnetic stuff ) leading this to an hardware related problem, but I want to be sure so maybe we will try to flash something (Are there Acer tools to flash full stock roms?). Tablet is running original rom and recovery, I just messed with the wpa_supplicant files but I dont see how this could be related.
Thanks in advance guys
Click to expand...
Click to collapse
I had an issue like this with a palm pre, and the only solution i could determine was that i was using an offbrand charger that wasn't supplying the right voltage/amperage and causing flakiness with the electrical charge on the screen. maybe the charger is damaged, or they're using an off-brand one?
Ty guys and sorry for the late reply. Yeah I was thinking about reverting back to the stock system but unfortunately I'm not very familiar with the tablet scene not having one and since he is a little frustrated atm about his situation maybe flashing a recovery to flash a stock rom isnt really the way to go. Isn't Acer delivering any tool to flash a full rom just to try if that will solve the problem?
Thanks again!
So wait someone is getting 110v from ground to the metal frame of the tablet?
Sent from my A500 using XDA Premium App
Same issue
I found this thread, and this is exactly what's happening to my tablet. When it's plugged in, the screen becomes very unresponsive, and it's very annoying. I can't charge it and use it at the same time. It's not even like galaxy tab 10.1 or ipad 2 where the battery life lasts like 10 hours! I am extremely frustrated about this issue..Mine has this issue at home. I don't bring charger to school, so I don't know about that. I'm really surprised that only very few people actually have this issue..
electrical grounding no good
Anyone has a solution to this?? Should I buy a new charger? I don't want to just waste money if it's not gonna fix the problem.
Thanks.
I had a similar experience to all of this when I was recently travelling by airplane. There were charging outlets (US-style 2-prong) on the back of each seat and my tablet absolutely REFUSED to respond properly to touch when I plugged it in. At the airport, in the hotel, at home, and everywhere else I've used it, it worked properly.
My conclusion: touch screens on A500 are very sensitive to electrical problems. I suspect that an airplane's electrical system isn't as "standard" as everywhere else, and whatever the difference was (a grounding issue, or a voltage regulation issue, or whatever) caused the touchscreen to freeze.
My suggestion to the poster and others with "when I plug in the touch screen stops working": go to another location (i.e., a friend's house, work, school, a coffee shop, etc.), plug in and see if the same problem happens. If it does, it might be your charger, so try someone else's A500 charger at a bunch of locations and see if the the same problem occurs.
I would guess that most people with this problem (not the "when I plug it in it gets for a few seconds" problem, but the "touch screen doesn't work when plugged in" problem) will find a solution lies in their power source, not the A500 itself.
BigWheeler said:
I had a similar experience to all of this when I was recently travelling by airplane. There were charging outlets (US-style 2-prong) on the back of each seat and my tablet absolutely REFUSED to respond properly to touch when I plugged it in. At the airport, in the hotel, at home, and everywhere else I've used it, it worked properly.
My conclusion: touch screens on A500 are very sensitive to electrical problems. I suspect that an airplane's electrical system isn't as "standard" as everywhere else, and whatever the difference was (a grounding issue, or a voltage regulation issue, or whatever) caused the touchscreen to freeze.
My suggestion to the poster and others with "when I plug in the touch screen stops working": go to another location (i.e., a friend's house, work, school, a coffee shop, etc.), plug in and see if the same problem happens. If it does, it might be your charger, so try someone else's A500 charger at a bunch of locations and see if the the same problem occurs.
I would guess that most people with this problem (not the "when I plug it in it gets for a few seconds" problem, but the "touch screen doesn't work when plugged in" problem) will find a solution lies in their power source, not the A500 itself.
Click to expand...
Click to collapse
Thanks for your suggestion. I'm actually moving to a new home tomorrow, so I'll try the new power outlet. Hope it won't have problems like right now..
Touch Screen doesn't work on airplanes.
sw6lee said:
Thanks for your suggestion. I'm actually moving to a new home tomorrow, so I'll try the new power outlet. Hope it won't have problems like right now..
Click to expand...
Click to collapse
I have run into another problem related to touch screens - mine doesn't work on airplanes. I think that there is some sort of pressure differential issue - the screen works fine on the ground, but once I open the tablet when the plane is at altitude, the screen just stops working - it doesn't matter if the tablet is plugged in or not.
Annoying to say the least. Last night I pulled out my wireless mouse to use the tablet, and a stewardess noticed this and told me to put it away as wireless devices aren't allowed on airplanes.......
Any suggestions?
Hey guys,
I've got a weird problem and I hope you could help. I got a transformer with keyboard dock from newegg about a month ago. Last week, the keyboard stopped working. The charging light on the dock turns on when the tablet gets docked and stays on. The transformer knows it's docked (there's a docked icon) but the Dual Battery widget shows N/A for the dock.
Originally, when this happened neither the keyboard nor the touchpad do anything. I did a factory reset and now Everything still doesn't work as before but the touchpad now works. Also, charging from USB works when the tablet is docked.
Currently, I'm trying to fully discharge the dock as I've seen hints that it might fix it but it's been taking forever and a half to discharge.
So, I come to you in hopes that you'll have ideas for a fix.
Also, the tablet and the dock should have the latest firmware installed on them currently.
First of all, I don't know for sure anything.
A possibility is you could have gotten a returned/refurbished dock. It's been worked on by asus people. When they put it back together, they accidentally flipped the switch that turned off the battery in the dock. They could also have been lazy and didn't check to see if the wire connecting the keyboard to the board was tightened in there. It could have fallen out after some time.
The point is you should RMA it.
It was working just fine for a month and then stopped. I probably will need to RMA it but hoping I wont.
Hi, I have got the Note for a few weeks now and loving it to death.
However, I have found an irritating problem. The screen becomes insensitive at the bottom right corner during charging, which became apparent to me when I had a hard time swiping the notification bar back up.
I have done the touch test by pressing *#0*# to confirm the problem and it only occurs when connected to a usb cable during charging and only with the fingers and not the S-pen.
I am wondering if it's my Note that is faulty or can someone verify that its happening on their Note too by doing the touch test?
Thank you.
mojojojo811 said:
Hi, I have got the Note for a few weeks now and loving it to death.
However, I have found an irritating problem. The screen becomes insensitive at the bottom right corner during charging, which became apparent to me when I had a hard time swiping the notification bar back up.
I have done the touch test by pressing *#0*# to confirm the problem and it only occurs when connected to a usb cable during charging and only with the fingers and not the S-pen.
I am wondering if it's my Note that is faulty or can someone verify that its happening on their Note too by doing the touch test?
Thank you.
Click to expand...
Click to collapse
Are you using the stock charger? My GSII screen would go nuts when hooked up to a charger I bought at WalMart.
mojojojo811 said:
Hi, I have got the Note for a few weeks now and loving it to death.
However, I have found an irritating problem. The screen becomes insensitive at the bottom right corner during charging, which became apparent to me when I had a hard time swiping the notification bar back up.
I have done the touch test by pressing *#0*# to confirm the problem and it only occurs when connected to a usb cable during charging and only with the fingers and not the S-pen.
I am wondering if it's my Note that is faulty or can someone verify that its happening on their Note too by doing the touch test?
Thank you.
Click to expand...
Click to collapse
Just got mine, and it was working fine until the KL7 OTA update. Now, when charge is low (below 30%) the bottom right 1/8th of the screen will only respond to pen touches, doesn't matter if it's charging, or plugged into USB.
When the battery gets about 35%, and no USB connection, it'll accept finger input. Plug the USB cable back in, and that area goes dead to finger input again.
I'm using the supplied USB cable, tried also using cables from my SGS1 and SGS2, and chargers from the SGS1, SGS2, original Tab, and Tab 8.9 chargers. Problem persists.
This happened totally stock, unrooted. Did a factory reset and flashed KL7 using Odin, but it didn't help.
I'm in the process of downloading KL3 as I type this, once that's done I'm going to flash it, see if it's still a problem.
If that doesn't fix things, I'm suspecting that it's a battery voltage issue, which may be fixed with a new battery, or a good clean charge.
I'd return it, but it's gray market imported.
davidusr said:
Are you using the stock charger? My GSII screen would go nuts when hooked up to a charger I bought at WalMart.
Click to expand...
Click to collapse
Various, including stock and straight out from the pc usb port. Same outcome.
No change with KL3. Pretty sure now it's a battery or shielding issue, and livable.
mojojojo811 said:
The screen becomes insensitive at the bottom right corner during charging, which became apparent to me when I had a hard time swiping the notification bar back up.
I am wondering if it's my Note that is faulty or can someone verify that its happening on their Note too by doing the touch test?
Thank you.
Click to expand...
Click to collapse
No, your note is not faulty. It depends on which charger are u using.
When i use Galaxy s+'s charger, it behaves exactly what have you describe. but when connected to note's charger, no insensitivity whatsoever.
And strange part is, some user experiencing reverse effect......
Check out this post :
http://forum.xda-developers.com/showthread.php?t=1406956
I'm have having the same problem. It doesn't matter which charger I'm plugged into, or into my computer, the screen becomes kind of strange, and the keyboard becomes very insensitive.
anyone found a solution ?
right corner problem still the sme after i flash abyss kernel 4.2 anyone help?
I had exactly the same problem when it was on gingerbread. I went to samsung service center and they replaced the display. Dont ask me the logic behind it. But i have no problems after that. May be its a hardware fault.
Sent from my GT-N7000 using xda premium
I have returned my first SGN to the shop due to this problem. It may not respond at all around bottom right conner when laid horizontally. This is not depending on plugging to charger and make the shop accepted my return.
My new SGN from other shop still has blinded area on bottom right corner but not too big like the first SGN. I think this may be normal for SGN.
Sent from my GT-N7000
My note and galaxy s did this with cheap chargers or USB cables plugged into a wall charger with USB that were off Ebay.
Switch to a Samsung, motorola or Nokia micro USB charger.
I've seen a few people with the exact same problem around the web, but no one has ever posted a solution (if they ever found one).
The kids were playing Angry Birds on the Nook before dinner, when I went to turn it back on after dinner it wouldn't boot (was working when I put it down).
When I plug it in the wall charger the light is always green.
When I plug it into a computer USB port it is momentarily detected as omap 3630 instead of Nook Color like it used to, then windows reports that it's been disconnected.
It had been running CM7 for a few weeks off of emmc, but now I can't even get it to boot from a uSD card into CWM.
When plugged in (computer or wall charger) I can see the backlight turn on and off every few seconds.
No combination of button presses seems to have any effect (power, power+n, power+n+vol+, etc.)
Try holding the power button for a full minute... release and try turning it on again... see if that don't do it.
Thanks for your reply.
I wish that worked, but I don't even see the back light flicker on for a split second unless it's plugged into the wall or a computer.
It's a shame too, I got it as a Christmas present from the wife and our toddlers really loved to play the games on it. They keep asking where "bad birdies" went
Your problem sound similar to an issue I had with charging. I has a bad charger/usb cable. Its a known issue and BN will replace it for free. If you are registered, call BN support a request a new one. I have done this twice. Once when the end bent and a second time when I had a green N but not juice (just flicker and/or a 'plug in the charger' symbol). The NC requires more power than the typical usb charger/cable setup, thus spares usb chargers AND cables around the house do not work.
I hate to do this because it was so maddeningly frustrating to see the same thing posted in the thread about boot problems here and elsewhere, but it turned on today and I have no idea why.
I'd been messing with it for a few days and finally after an unsuccessful morning I left it on my dresser. I was in the kitchen making hot chocolate after playing in the snow with the kids when my two year old comes walking down the stairs with the nook and drops it at my feet. When I went to pick it it, it was in the process of booting. Whether he had done something to it or the short fall jarred something that was loose I can't say, but it now seems to be fine.
It had about 50% battery and the lights on the charging cord now respond like they should.
I have no idea what happened, but I wish I did so I could help others in my boat.
Still could be your charger/usb cable. When the charger/cable start going bad, it takes for ever to charge. Like all day just to get enough juice to boot up. If it dies again and doesnt reboot after its been on the charger for a few minutes or you're only getting a partial charge over night, its the charger and or cable.
It charged fine overnight.
There definitely must be something loose on the inside. If I give it a fairly significant whack (nowhere near a punch, but harder than a tap) it will reboot. I think it was a refurbished unit. The newer units seem to have serial numbers where the first four digits correspond to the year. The first four digits of this one are 2004! Looks like they never fixed what was wrong in the first place.
You just ran it too dead. It won't power on until it's established a decent charge first.
Sent from my MB865 using xda premium