bandaid for screen tearing - Eee Pad Transformer General

fyi for those of you experiencing screen tearing like I am, I'm able to 'fix' the problem by trimming the number of recent apps to less than 7.
ie. 7+ apps in recent apps = tearing when pressing recent apps button on home screens (pretty much all the time for me)
less than 7 = no tearing
thought I'd share

Thanks Kermit was wondering why this issue wasn't getting more attention. It's been driving me nuts. At least we got a bandaid now. Thanks again!!

I am also having the same issue with you. I post it in another thread: http://forum.xda-developers.com/showthread.php?t=1527778.
It seems like there's only a few of us having this kind of problem. Trimming apps up to 7 does the trick but you can't help it when you always open a lot of apps. By the way, this does not happen when the TF is upside side down.

not sure what the term means but ive been having a diagonal flash go from the top left corner toward the bottom right corner (like a lightning strike) so will give the advice a go.

I figured it was my Season Zen wallpaper that is causing it. Need to try it with it turned off.

Been getting it too..every now and again..when I hit menu or home buttons..
Will come back to this thread and try the bandaid..
Thanks
sent from yet another MikG HTC Evo

Related

Did google fix the sreen problem after the upgrade?

Hi, Just wonder if you still have the screen problem (register the wrong place when click) after the upgrade.
No. You should check out the humongous thread on google support forums. Googe have now abandned even giving updates on this serious problem.
http://www.google.com/support/forum...8e&hl=en&fid=04134c63c784258e00047fdfe09ae547
p.s. no fix in ere36b either (as im running that now and still experience this problem at random)
I don't understand this issue, I just don't see it on mine at all, no matter what ROM I install ... there has to be something more to this than a simple fault across all handsets ... either select faulty ones or some other factor. Mine just works 100% as expected at all times.
That said I have had no 3G issues either, no matter what radio version I use. Perhaps I am lucky ?
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most annoying when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw two parallel lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Only way that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. From the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
trust me its not.
i have had this twice and has nothing to do with that.
i dont see it as a huge problem but a lot of people are getting this on a daily basis..
vas41 said:
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most anyin when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw to lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Onlyway that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. Fromn the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
Click to expand...
Click to collapse
I know, I have seen all these videos and attempted to re-create many times to test I have never seen this issue once.
Don't get me wrong I can understand it being a mare of you are having it, but I just dont ever see it.
after trolling the Google thread, it seems to me there are several scenarios everyone is lumping into "screen issues" and it's going to be hard to pin it down to one source
Mine happens (touch registers on the wrong part of the screen) when I am using certain apps (Ringdroid, Browser mostly) - a couple of things clears it up ; press the sleep button, kill all tasks if you have an app for it, or change to landscape mode. For other people it's the soft keys and/or much worse. Since mine clears up with a specific action, I tend to think it is software related.
With mine it used randomly to happen but only in the Launcher (never again since 36B). I couldn't point anywhere but if I selected any app with the trackball and opend ist everything worked fine again, also the keyboard on the launcher worked well. For me it seems that it has something to do with the launcher.

POLL: Issues with bottom of touch screen

Hi all,
I would like to ask as many people as possible to test the bottom of their touch screens using multitouch visualiser 2 (free from the market).
I (and many others as it seems) are finding the bottom 5-10 mm of the screen is very unresponsive, this can be checked in the above app easily and if you have the problem it will either pick up no input or the "target" will flicker like mad when you firmly press your finger in the area.
I would like to gauge what kind of percentage of units have the problem.
Cheers!
EDIT: I recommend trying this app- it has deffo helped this issue for me!
http://android.modaco.com/content/advent-vega-vega-modaco-com/327198/screen-calibration-app/
Nope... Mine is perfectly fine...
Hi Higgsy.
Yeah a seem to get some problems with the bottom left of mine, It kind of flickers when i move across the bottom 10mm of the left side when using multitouch visualizer. Its fine on the bottom right. I have always had a slight issue when trying to drag shortcuts from that part of the screen to the bin. but apart from the its not a major issue. I was hoping it was a software issue, but your poll suggests it may just be a few units. Have to keep this one until they are in-stock instore anyway.
original_ganjaman said:
Hi Higgsy.
Yeah a seem to get some problems with the bottom left of mine, It kind of flickers when i move across the bottom 10mm of the left side when using multitouch visualizer. Its fine on the bottom right. I have always had a slight issue when trying to drag shortcuts from that part of the screen to the bin. but apart from the its not a major issue. I was hoping it was a software issue, but your poll suggests it may just be a few units. Have to keep this one until they are in-stock instore anyway.
Click to expand...
Click to collapse
pretty much exactly the same - try this - I just did and has actually helped - still a little un responsive - but no flicker now!
http://android.modaco.com/content/advent-vega-vega-modaco-com/327198/screen-calibration-app/
Higgsy said:
pretty much exactly the same - try this - I just did and has actually helped - still a little un responsive - but no flicker now!
http://android.modaco.com/content/advent-vega-vega-modaco-com/327198/screen-calibration-app/
Click to expand...
Click to collapse
Thanks mate, that has helped a lot. No more flicker in multitouch visualizer. Dragging icons from that part of the screen is also improved. Seems to just be a calibration problem.
Happy Days
original_ganjaman said:
Thanks mate, that has helped a lot. No more flicker in multitouch visualizer. Dragging icons from that part of the screen is also improved. Seems to just be a calibration problem.
Happy Days
Click to expand...
Click to collapse
yeahj the whole screen seems much more responsive and keyboard too.
I've only found about a 2mm deadzone near the bottom, not nearly as bad as some that I've seen. Also seems to be a bit hard to press the home button in the notifications bar sometimes.
Thanks for posting that screen calibration app, I'll give it a look
Sent from my HTC Desire using Tapatalk
Wow!
Higgsy I want your babies! Had a 10mm dead strip in the bottom left of my display, also had some issues typing on the keyboard, double hits drove me crackers, got to the point I couldn't be bothered to type. Well I used that calibration APK you linked and the deadzone has gone and even better my keyboard is much more responsive
About the babies thing.... might be a problem with me being a 42 year young hairy bloke . Settle for a hearty thanks?
Bumped it on modaco. Searched for this previously but its a bit of a dead thread.
yeah its deffo worth a bump doing one these every week wont hurt.
We could ask to pin this thread?
I put it in dropbox for quick access http://db.tt/QNqL2TB
I can use swiping on Launcher Pro after calibrating the screen, just like on my SGS! Great contribution!
Going to try it now, thanks
Mine was perfect for the first month I owned it, then it got really bad all of a sudden. I ran this app and it fixed it, but now sometimes randomly every few days (or sometimes within a few hours) the very edge where all the connectors are stops working, so if you have it rotated so that is the top, it is impossible to slide down the notification bar.
Running the app again fixes it again, but I hate that I have to keep running the app. It has held perfect for the last 3-days though, so hopefully I didn't just jinx myself.

Lost Touching on Xoom

Does anyone notice that if you touch on the screen for more than around 20 seconds at the exact same spot, the touch will be suddenly lost. You have to re touch the screen to get back the response.
You can download a multi touch testing app and try and you will know what I am talking about.
The problem is also found on ATRIX......(please refer to http://forum.xda-developers.com/showthread.php?t=1000583)
I am now quite angry and wanna MOTO to have it fixed as soon as possible.
Does this manifest in any way in real-world use? I haven't noticed any touch screen problems.
There is a long list of things that people would like Motorola and/or google to fix right away: SD card, Video playback, Forced Closes to name a few.
But if a problem isn't noticed in every-day use, its not going to be much of a priority.
It'd seem more like something built in than just a bug that popped up.
At least as a developer, that's where I'd put my two cents. There's a reason for it -- although I guess I could see it being an issue if there were an app that made you hold your fingers still for 20+ sec, followed by movements on the screen... but I don't know.
Digital Man said:
Does this manifest in any way in real-world use? I haven't noticed any touch screen problems.
Click to expand...
Click to collapse
It does, in fact, manifest itself in real-world use; when I hold the device with my left hand in the middle--as is usually the case--my thumb often presses against the black bar at the bottom (the one that has the time, navigation symbols, etc). After a few seconds, the screen fails to respond to touch; it does recover after a while, but until I read the op, I never realized the cause, i.e. I was removing my thumb from the bar. I was thinking of returning it, because I thought it was experiencing random freezes.
I would imagine this is a feature, whether in the hardware or implemented in the software. It's a pain in the arse from the device's perspective to be continuously polling a screen touch for 20 seconds or more.
I'm a developer too and unless it happens with _any_ continuous touch (moving or still) it's a feature not a bug.
However, if you were to touch and move for 20+ seconds then it stops responding, this is a bug, depends where and when (whether always or just in certain apps) it happens.
snarful said:
It does, in fact, manifest itself in real-world use; when I hold the device with my left hand in the middle--as is usually the case--my thumb often presses against the black bar at the bottom (the one that has the time, navigation symbols, etc). After a few seconds, the screen fails to respond to touch; it does recover after a while, but until I read the op, I never realized the cause, i.e. I was removing my thumb from the bar. I was thinking of returning it, because I thought it was experiencing random freezes.
Click to expand...
Click to collapse
So, like we said before, no real-word manifestation.
snarful said:
It does, in fact, manifest itself in real-world use; when I hold the device with my left hand in the middle--as is usually the case--my thumb often presses against the black bar at the bottom (the one that has the time, navigation symbols, etc). After a few seconds, the screen fails to respond to touch; it does recover after a while, but until I read the op, I never realized the cause, i.e. I was removing my thumb from the bar. I was thinking of returning it, because I thought it was experiencing random freezes.
Click to expand...
Click to collapse
I haven't been able to replicate this on my XOOM. Though, if the problem occurs on your XOOM as you describe, I can understand why that would be annoying. Maybe the problem isn't present on all devices.
I did try a multitouch testing apply. I had 8 of my fingers for more than just 20 seconds. Didn't experience a thing until I put my ninth one down. On other test app, though, it said xoom can support up to ten.
Sent from my Nexus One using XDA App
OK think I figured this out. I can replicate what you are saying. But, the whole screen doesn't lose touch sensitivity, only the menu bar. I suspect this is intentional, and part of honeycomb and not a flaw in the touchscreen hardware.
It just means that you have to remove one fingure from the menu bar before you can use it again. I can't see this causing any problem whatsoever in day to day use. Just an interesting quirk.
Don't forget , that the bar is part of the screen just like any other, if you're holding that in an app that doesn't support multitouch in such a way, it wont work.
One thing that always bugged me on my Android devices is that I can't drag the curtain (notification drop down) half way, keep hold of it and tap something inside then let go. But that's just the way it works.
Actually you are partially right. Its the honeycomb interface as a whole that becomes unresponisve, not the screen. For example if am at the home-screen and I touch the menu bar for more than 20 sec and hold my finger there, I can't open the browser.
BUT
If the browser is already open, and I hold down on the menu bar, the rest of the menu bar won't respond, but links in the browser work fine. So it's not the touchsreen that becomes unresponsive, its the Honeycomb interface.
Edit: after experimenting with different apps, it looks like my own observation isn't completely consistent. Some apps like the browser continue to respond. Others like Google books lock up. Not sure what to make of it all. But there are definitely cases where only the menu bar freezes and the app continues to respond.
Yeah, now that I know what causes this quirk to manifest, I'll just have to be careful not to rest my thumb on the bar. I must find some way to hold it firmly with my left hand; maybe some kind of suction device attached to the back.
snarful said:
Yeah, now that I know what causes this quirk to manifest, I'll just have to be careful not to rest my thumb on the bar. I must find some way to hold it firmly with my left hand; maybe some kind of suction device attached to the back.
Click to expand...
Click to collapse
Patient: "Doctor it hurts when I bend over."
Doctor: "Well then don't bend over!"
LOL Pretty much a universal soltion. But I agree just a quirk, doesn't seem to be a big deal, just don't hold it like that.
LOL, right!
When you play games you can easily observe this!!
For example you play car racing, you have to touch the "accelerating button" for the whole time. It will suddenly lose response and all the other cars pass me.
Another example is the mini squadron, you have to keep touching the "fire button" to fire. But after touching for 20 seconds, it losses response again.
It is so annoying when playing games. However, except this, other daily uses will not observe this problem.
AND my XOOM is the recent WIFI only version. Maybe only this version has the problem?
AND I am talking about keep touching on the same position on the screen. You dont have to use two fingers to have the problem.
It makes Mario Kart unplayable.
Sent from my Captivate
MikeyMike01 said:
It makes Mario Kart unplayable.
Sent from my Captivate
Click to expand...
Click to collapse
Mario Kart works fine for me...
bwcorvus said:
Mario Kart works fine for me...
Click to expand...
Click to collapse
I'm holding the A button and suddenly it stops.
Sent from my Captivate
I have the 4G/Wifi Xoom fully stock,
I had a similar issue yesterday, I bought one of those styluses for ipad, which do work for OG Droid and for the Xoom, had a drawing app open, set the pad down with the stylus on top, it did 2 things it start to constantly draw from tip to clip.
then I picked up the stylus, now everything seemed to be stuck to a center point every touch drew a center line to the single point for about 2 minutes, I put it down, had wouldnt respond to more pressing, then picked it up it finally returned to normal.
although I just topped putting the stylus on it while its on, and havent had the issue, but I have only played angry birds, and fruit ninja.
Wow. Not good.
One of the XOOM's biggest selling points is HD Video, and it doesn't do that well.
The other is 3D gaming. And now we're finding out the control is messed up! Seriously!
And to think I was looking forward to gaming on this thing while waiting 3 hours for my damn videos to finish encoding. What next.
I'm starting to have doubts about the XOOM again. Video and 3D gaming was supposed to be what the Tegra 2 was all about. Would like more feedback about how real this problem is, and whether games are really unplayable - is this a quirk or a serious flaw? Will have to try some gaming tomorrow. Would help if we could list games that are affected and to what degree. Maybe we can get some consensus on whether this problem is meaningful or not.
Games reported to be affected so far:
1. Car racing (which one?)
2. Mini Squadron
3. Mario Cart

"Ghost Touches"

Hey All-
I searched for this with the assumption that with all the N7 screen issues there would be others experiencing this but I was not able to find much of any help.
----
My N7 is registering touches without me making contact with the screen. It is always in the same location. When the keyboard is up, it is where the letter 'D' is located. If I pass my finger directly overhead, or often times, even near to, the 'D' button, the tablet registers it as a touch. I can make the tablet register a touch with my finger as far as 1/4'' away from the screen surface. As you may imagine, this makes typing near impossible. As I pass over the letter 'D' to access other letters, it registers 'D' everytime.
I have tried other keyboards and the problem persists. It isn't necessarily over the same letter (due to differing keyboard layouts) but it is always in the same location on the screen.
I popped the back cover off and tightened/loosened screws to no avail. Turning the screen off and then back on does not help as it seems to do with some of the other screen issues that others are experiencing. The one thing I have found to strangely help is pushing on the screen in the affected location with extremely firm pressure; in essence squishing the s*** out of it. When I do this, the screen will behave better (it will still ghost touch in the area but my finger must be very close to the screen) for a period of time before reverting to misbehavior.
--
Has anyone else experienced something of this sort? I am currently running stock/rooted/unlocked; It seems to be a hardware issue so I don't think another ROM will help though I will try the CM10 nightlies when they boot properly. I'm ready to just bring it back for a new one but I know the Wal-Mart I bought it at is out of stock.
Any help would be very much appreciated, thank you.
Im having the same issue mine is in random places, usually top left corner but when im texting it starts typing random letters, I've been looking
for a solution or someone with the same issue you are the first and only that i have found. I am also having the dead spot issues, they tend to alternate.
thunderinacircle said:
Hey All-
I searched for this with the assumption that with all the N7 screen issues there would be others experiencing this but I was not able to find much of any help.
----
My N7 is registering touches without me making contact with the screen. It is always in the same location. When the keyboard is up, it is where the letter 'D' is located. If I pass my finger directly overhead, or often times, even near to, the 'D' button, the tablet registers it as a touch. I can make the tablet register a touch with my finger as far as 1/4'' away from the screen surface. As you may imagine, this makes typing near impossible. As I pass over the letter 'D' to access other letters, it registers 'D' everytime.
I have tried other keyboards and the problem persists. It isn't necessarily over the same letter (due to differing keyboard layouts) but it is always in the same location on the screen.
I popped the back cover off and tightened/loosened screws to no avail. Turning the screen off and then back on does not help as it seems to do with some of the other screen issues that others are experiencing. The one thing I have found to strangely help is pushing on the screen in the affected location with extremely firm pressure; in essence squishing the s*** out of it. When I do this, the screen will behave better (it will still ghost touch in the area but my finger must be very close to the screen) for a period of time before reverting to misbehavior.
--
Has anyone else experienced something of this sort? I am currently running stock/rooted/unlocked; It seems to be a hardware issue so I don't think another ROM will help though I will try the CM10 nightlies when they boot properly. I'm ready to just bring it back for a new one but I know the Wal-Mart I bought it at is out of stock.
Any help would be very much appreciated, thank you.
Click to expand...
Click to collapse
Nexus 7 phantom taps
I'm having similar problems with my Nexus 7 bought in November. Worked fine for a while, now I'm getting phantom taps making typing a real pain and page scrolling can be frustrating when it suddenly scrolls to the top of the page! Anyone know if this is a warranty fix?
I had this happen one time. It freaked me out.
Sent from my LG-P999 using xda premium
OP and others - have you look at the video here - post #1254 - look familiar to you at all - http://forum.xda-developers.com/showthread.php?t=1770919&page=126
A # of us had been freaked out, wondering if our secured WPA2 network has been breached and remotely controlled ...
If your device is brand new, return it & get it exchanged, or get it fixed under warranty - it's hardware related. The 16GB WiFi only model that I got from local Staples store had that problem that got worst - the replacement & upgraded 32GB unit has been flawless thus far - running stock but rooted 4.1.2 rom. I was within the 14 days/holiday time frame for exchange/return w/o stocking fees, luckily & did not have to wait for it to be repaired under warranty.
Upgrading to 4.2 firmware and/or custom Rom & kernel do not help, YMMV - of course ...
BTW, local Staples tech support counter manager said up to 20% of the N7 are getting returned/exchanged for various issues. Wow !!
After 4.2.2 my nexus7 makes phanton clicks too
Similar with this video www.youtube.com/watch?v=Tkh3W_ITwEw
I turn off screen and turn on and stop... The times in times i get it
Have solution?
I had to take my screen protector off after the update it was pressing places on the screen didn't happen until 4.2.2 update
Sent from my Nexus 7 using xda premium

Galaxy S5 Recent Key phantom presses

I seem to be experiencing a weird problem with my brand no S5... Im wondering is anyone else has had the same thing happen.
When Im holding the phone in the landscape position I rest my index finger across the top of the phone and thumb at the bottom with webbing of my hand touching the right side (in this position the right side is where the charging port is). I attached an image of what I'm talking about. It seems that if I hold it this way long enough (maybe 2-3 minutes) to warm up the metal trim that surrounds the phone that simply touching the metal is activating the Recent Key. You can see this in the video below.
I'm sure the case (that should be arriving today) would prevent this from happening, but if no one else is having this issue then maybe its a defective one and I should get the AT&T store to replace it now before its too late.
EDIT: Apparently I cannot link to a Youtube video because of my post count. Please put this URL back together.
youtu.
be/
mFXlBuUvJBE
There you go.
degast said:
There you go.
Click to expand...
Click to collapse
Thanks! Maybe I'll hit my 10 posts in this thread
Possible multitouch error, N3 had some errors with multitouch/phantom etc, I'd suggest maybe a swap out if you can
Wow....I have the kinda the same thing happening. My phantom presses happen right next to where your thumb and index finger are at in the picture. I've removed the case, reset the phone and I still occasionally get it. About 4 days without the case and I still get it if it gets too hot.

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