Desire HD multitouch - Desire HD General

Did anyone here notice problems with multi-touch when pressing with 4 fingers in a square.
It fails to recognize all fingers or misplaces them or other strange behaviour.
That means the screen is not REAL multi-touch and that's kinda disappointing in my opinion.
(4 fingers work fine in most situations, only when trying to achieve a perfectly aligned square)
Can anyone else try this? (best program to use is "Multitouch visible test" free from market.)

Works for me.
Sent from my Motorola Startac running Atari 2600 software!

if there are 2 fingers on same row, one of them disapere.. if you do a perfect square, you get left with one finger working...

DubelBoom said:
if there are 2 fingers on same row, one of them disapere.. if you do a perfect square, you get left with one finger working...
Click to expand...
Click to collapse
As I said, strange stuff happens with 4 fingers aligned like that

Foladko said:
As I said, strange stuff happens with 4 fingers aligned like that
Click to expand...
Click to collapse
very wired.... but how cares, i can play fruit ninja with 4 fingers

I am having no problems at all...
Sent from my Desire HD using XDA Premium App

Works for me....
And yes, it is "real" multitouch

Fine here too.

All good with mine also - four points in a square with no problems whatsoever.

works fine with me too

I've been testing this further today and it's slightly more complicated.
I noticed that when plugged into charger it seems to work, but as soon as I disconnect it the issue is back.
It also worked or didn't randomly through the day.
So I guess this could be a software issue, possibly to conserve battery..?

Foladko said:
I've been testing this further today and it's slightly more complicated.
I noticed that when plugged into charger it seems to work, but as soon as I disconnect it the issue is back.
It also worked or didn't randomly through the day.
So I guess this could be a software issue, possibly to conserve battery..?
Click to expand...
Click to collapse
I noticed this too! At first, I was happy that it worked for me, but then I read this, and plugged it out of the charger. So then we know that when we want to impress our friends with four points multitouch, we need to have the charger plugged in

Foladko said:
I've been testing this further today and it's slightly more complicated.
I noticed that when plugged into charger it seems to work, but as soon as I disconnect it the issue is back.
It also worked or didn't randomly through the day.
So I guess this could be a software issue, possibly to conserve battery..?
Click to expand...
Click to collapse
I can confirm that. Just tried it and it behaves very strange. Seems to me that it's not related to charging because both times I had my phone off the charger...
EDIT: OK I rebooted just to see if it's software related. It's not. It's purely hardware. You have to hold your phone to get proper multitouch. Simple as that.
Sent from my Desire HD using XDA App

DubelBoom said:
if there are 2 fingers on same row, one of them disapere.. if you do a perfect square, you get left with one finger working...
Click to expand...
Click to collapse
You might have a faulty device if it doesn't work...
Sent from my Desire HD using XDA Premium App

Please remember that there are 4 different models of touch panel that HTC use in the Desire HD, 2 different screen models and 2 different camera modules. Not all DHDs are the same. If you have an ENG HBoot then you can see what hardware your DHD has by checking 'system info'.

Doktaphex said:
Please remember that there are 4 different models of touch panel that HTC use in the Desire HD, 2 different screen models and 2 different camera modules. Not all DHDs are the same. If you have an ENG HBoot then you can see what hardware your DHD has by checking 'system info'.
Click to expand...
Click to collapse
Well I know about 2 different screens, and the Inspire 4G uses a slightly better camera, but I've never heard about 4 different touch panels being used
I also don't think it's a hardware issue, because then it wouldn't just work and then stop randomly. It really sounds like a software thing TBH
My phone has the auo screen and the touch pannel is: SYN3KT_0108

Foladko said:
Well I know about 2 different screens, and the Inspire 4G uses a slightly better camera, but I've never heard about 4 different touch panels being used
I also don't think it's a hardware issue, because then it wouldn't just work and then stop randomly. It really sounds like a software thing TBH
My phone has the auo screen and the touch pannel is: SYN3KT_0108
Click to expand...
Click to collapse
Hold the phone while testing the touchscreen. if you just leave it on the table, it behaves like you describe. If you hold it in your hand, the touches are precise.

Foladko said:
Did anyone here notice problems with multi-touch when pressing with 4 fingers in a square.
It fails to recognize all fingers or misplaces them or other strange behaviour.
That means the screen is not REAL multi-touch and that's kinda disappointing in my opinion.
(4 fingers work fine in most situations, only when trying to achieve a perfectly aligned square)
Can anyone else try this? (best program to use is "Multitouch visible test" free from market.)
Click to expand...
Click to collapse
If you get "Z-DeviceTest" app you can test almost everything... and our Display can recognize a maximum of 4 fingers, not more and not less, so its multitouch => Jazzhand XD^^

As others pointed out you need to hold the phone in your hand so your hand acts like a ground. And thats actually not really a problem since capacitive technology is supposed to be grounded if you want to make precise touch. Thats just basic electronic stuff we all should know
Sent from my Desire HD using XDA App

Nece228 said:
As others pointed out you need to hold the phone in your hand so your hand acts like a ground. And thats actually not really a problem since capacitive technology is supposed to be grounded if you want to make precise touch. Thats just basic electronic stuff we all should know
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
I have thought of that and I know how capacitive touch tech works.
That does make sense.
But then 4 touch shouldn't work at all when not plugged in or being held, instead only square position not working when not in contact, I mean 4 fingers is the same deal whatever way you position them on the screen?
Care to explain further?

Related

(SOLVED) Serious screen problem, please help!

Looks like it was my generic charger causing all the problems all along...
Too high output (6.5VDC where it should be 5VDC)
Ordered a replacement, hoping for the best.
Thanks for all the help!
Sometimes my touchscreen is just perfect. Lately, it's driving me nuts!
When I hold my finger on the screen, the touch screen registers rapid multiple touches. Possibly as many as 10 per second.
This makes dragging and long-press actions almost impossible. Scrolling is very hard and typing is a PitA.
The problem goes away at times but keeps returning. I'm not sure if I had it before the recent update.
At first, it seemed like rebooting helped but today it proved useless.
Anybody, please help!!!!
(phone was used and has no warranty coverage )
dfan said:
Sometimes my touchscreen is just perfect. Lately, it's driving me nuts!
When I hold my finger on the screen, the touch screen registers rapid multiple touches. Possibly as many as 10 per second.
This makes dragging and long-press actions almost impossible. Scrolling is very hard and typing is a PitA.
The problem goes away at times but keeps returning. I'm not sure if I had it before the recent update.
At first, it seemed like rebooting helped but today it proved useless.
Anybody, please help!!!!
(phone was used and has no warranty coverage )
Click to expand...
Click to collapse
Do you have a screen protector on the screen? Sometimes the cheaper ones are too thick and the screen doesn't register touch like it should.
Talonnb said:
Do you have a screen protector on the screen? Sometimes the cheaper ones are too thick and the screen doesn't register touch like it should.
Click to expand...
Click to collapse
Just the one that came on the phone.
Like I said, the phone works beautifully some of the time but registers multiple contacts other times.
I suspect software but it seems I'm the only person with the problem...
do you have a warranty.... sounds like a hardware fault to me.... the only way you can prove it's software (or not).. is to do a factory data reset and then run it with the standard basic build for a few days.. see if you still have problems when you don't have any other apps on the phone.
Do you have wet fingers when you experiment this behaviors?
Happens to me too. I figure its due to gunk on the screen like water, sweat your gf's makeup (a major one)
Sent from my X10a using XDA App
This happens to me too.
Only started happening since the last update so I just assumed it was a bug in the new firmware. It's like the phone lags and then catches up with itself, very annoying.
bushbox browser said:
This happens to me too.
Only started happening since the last update so I just assumed it was a bug in the new firmware. It's like the phone lags and then catches up with itself, very annoying.
Click to expand...
Click to collapse
I think it is since the update. I'd better reset the phone using SEUS and see what happens.
@ everybody, believe me, I have had the problem through a variety of circumstances and no problem with sweaty fingers etc. It seems pretty random!
I don't have a warranty so re-install here I come!
I would definetly try the factory reset first. I have had similiar issues but its only been while typing quickly. It lags a bit and then it all shows up on the screen plus a few extras of whatever the last character I typed was.
I did read somewhere, can't remember exactly where, that because our screens are capacitive they can malfunction. What I mean is this:
"Surface Capacitive touch panels: a layer that can store an electrical charge is created on the glass panel. When a user touches the monitor with his or her ungloved finger, a portion of the charge is transferred to the grounded user reducing the charge on the capacitive layer. The controller calculates, from the differences in charge at each corner and determines where the touch occurred."
Sooooo if say the ground for the screen is damaged then it will not register your touch appropriately. Hopefully it just requires a reset, cause the latter I think would be a tougher fix.
Let us know
dfan, is it happen only when you charge your phone? What charger are you use? Original?
I did a restore but no change, issue still there, it doesn't happen often though.
Dose seem like a bug and it never happened to me before the last update.
Also it happens to me when not charging.
Sent from my X10i using XDA App
very bad.. you cannot drink a cold coke and use the phone. I think that it is a hardware related problem. I was trying to reproduce the same with N1 and Legend (with my fingers flooded) without problems. So.. guys with hyperdrosis keep away from this phone!
No it's not a hardware problem as it only started happening with the last update.
Remember the x10 uses different software to nexus one or desire so can't compare with them.
I believe it's the software lagging, this update is faster overall but just lags occasionally, maybe the next software update will fix it, and if not the 2.1 update should definitely fix the issue.
Sent from my X10i using XDA App
bushbox browser said:
No it's not a hardware problem as it only started happening with the last update.
Remember the x10 uses different software to nexus one or desire so can't compare with them.
I believe it's the software lagging, this update is faster overall but just lags occasionally, maybe the next software update will fix it, and if not the 2.1 update should definitely fix the issue.
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Are you pretty sure?
Tested... it is present on old roms
Well the old roms were laggy as hell anyway. It seems like classic software lag so I still think it's software.
Maybe when 2.1 is released we will find out, or even better when we get stock android running though root, that would clear it up once and for all.
My iPhone 3g also suffered from similar lag issues.
Sent from my X10i using XDA App
brunswick000 said:
I would definetly try the factory reset first. I have had similiar issues but its only been while typing quickly. It lags a bit and then it all shows up on the screen plus a few extras of whatever the last character I typed was.
...
Sooooo if say the ground for the screen is damaged then it will not register your touch appropriately. Hopefully it just requires a reset, cause the latter I think would be a tougher fix.
Let us know
Click to expand...
Click to collapse
Hells yeah I don't want a defective screen or this thing is done!
regarding your first comment, this is not lag. It is like I had a turbo button. If I touch for more than 1/15 sec, I get 2, 3 or 4 letters.
instead of one long press, the screen continually registers new presses, no matter how firm my touch is.
Imagine how much fun it is drawing the unlock pattern when my phone's in a bad mood...
That dose sound different to the small lag I occasionally experience, very odd.
Sent from my X10i using XDA App
I've reinstalled the FW and it didn't fix it.
The other day I had 5 straight hours of rapid-fire screen during which I couldn't even unlock the phone.
Gonna have to send it in for repair. Anybody know how expensive S-E are for repairs? Is it even worth doing?
I have narrowed the suspects down to my generic charger.
The charger I bought outputs over 5V (claims 6.5V) which seems to be the problem since I don't experience the issue when charging from a USB port.
New charger ordered, fingers crossed.
Thanks for all the suggestions!

[Discussion] DHD - Crappy digitizer

First off, I'm not a hater.
I'm a previous HD2 user and in no way an apple fanboy.
However, I cannot fail to notice how increadibly bad our touch experience is with our dhd's. For instance, when you move your finger sideways, you'll notice how choppy it is.
Also, for example when playing Gun Bros, you'll notice that you won't be able to aim properly. Also there, it is choppy. Instead of giving all 360° you'll find segments where it just jumps over, if you understand what I mean.
I tried playing it on my friends iPhone 4, and it worked perfectly there. Very accurate.
I guess I just wanted to write my anger off and see if anyone agrees with me that HTC could have done a better job on the touch. I suppose samsung has a better touch with their 60 hz (or is it 69 hz) digitizer?
I have no issues at all with digitizer, what would say is that gun bros is still in beta stage.
I play plenty of games and not once come across any issues.
Yeah I've noticed that too when I was drawing stuff on it, when moving finger diagonally in a straight line it creates like a wavy line. Pretty disappointing but oh well, you can never have a perfect device...
I'm still happy I bought it though, much better then my last phone.
EDIT: Here's a pic, I tried my best to make straight lines as slowly as possible.
I find the touch screen perfect with no glitches or jumps in any game or app
Could be the game or could be an issue with your rom and the game
Do you have it overclocked and without general bugs? Those could be causing it
Or a power hungry app in the background making the game seem to jump
Another thought is a screen protector, when I put mine on it seemed to be alot less responsive
Joey93 said:
I find the touch screen perfect with no glitches or jumps in any game or app
Could be the game or could be an issue with your rom and the game
Do you have it overclocked and without general bugs? Those could be causing it
Or a power hungry app in the background making the game seem to jump
Another thought is a screen protector, when I put mine on it seemed to be alot less responsive
Click to expand...
Click to collapse
It's definately not an issue with the game, as I see this everywhere. It is a matter of the digitizer.
Also I am running it stock right now.
To those that say their screen is working perfectly, try flipping through the home screens very slowly from left to right or the other way around, with your finger on the screen all the time, and let me know if it follows the finger perfectly or if it's a bit choppy, as compared to when you go up and down in the app drawer for instance. You'll see about 9-10 "chops". This, I've reproduced on 3 different DHDs.
i'm using a -android Revolution HD and have no problems with the screen, i was trying to do dose things with finger and the window is yust there where i first put my finger on, so i don't see the problem here.
One of the kolegs have a iphone4 and we didn't notice a diference when using mine or his phone...
sorry for bad einglish
gagi´d hype said:
One of the kolegs have a iphone4 and we didn't notice a diference when using mine or his phone...
sorry for bad einglish
Click to expand...
Click to collapse
yeah, one of my friends has an iphone 4 and doesnt notice the difference
we excuse your bad "einglish"
ErOR22 said:
EDIT: Here's a pic, I tried my best to make straight lines.
Click to expand...
Click to collapse
That is exactly what im talking about. Vertically it works fine but horizontally it is choppy big time! hence you cannot get a straight diagonal.
Sent from my Desire HD using XDA App
Agree completely. Very poor from HTC. Again.
I'll probably be shot down in flames by the HTC apologists around here...
Sent from my Desire HD using XDA App
There no reason to get flamed, we're merely stating the truth.
Surely, the dhd is a great device, but we shouldn't ignore the fact that even HD2 was smoother horizontally. The fact that a high end device cannot draw diagonals across the screen is simply crazy, seeing as it was possible with previous devices, and I cannot help to feel a bit ripped off from htc.
But before concluding too much, is there anyone that actually cannot reproduce this problem? If so, please post a picture where you can draw a diagonal (of course by moving your finger in a slow enough motion)
Sent from my Desire HD using XDA App
No problems with the touch screen here, I do a lot of gaming and never run into a single issue.
dhiral.v said:
No problems with the touch screen here, I do a lot of gaming and never run into a single issue.
Click to expand...
Click to collapse
Please, as I said, try to reproduce drawing a diagonal before you say you don't have any problem. Or you'll just be spamming this thread.
Sent from my Desire HD using XDA App
ErOR22 said:
Yeah I've noticed that too when I was drawing stuff on it, when moving finger diagonally in a straight line it creates like a wavy line. Pretty disappointing but oh well, you can never have a perfect device...
I'm still happy I bought it though, much better then my last phone.
EDIT: Here's a pic, I tried my best to make straight lines.
Click to expand...
Click to collapse
I tried to do this with a drawing app and I can make "straight" diagonal lines when using a swipe action. I can also recreate the sample posted by drawing the line slowly.
What this means for the digitizer, I will leave for others to pursue.
Cheers from my DHD.
junta_mpb said:
I tried to do this with a drawing app and I can make "straight" diagonal lines when using a swipe action. I can also recreate the sample posted by drawing the line slowly.
What this means for the digitizer, I will leave for others to pursue.
Cheers from my DHD.
Click to expand...
Click to collapse
Yep, when drawing diagonally in a fast sweep motion the line is drawn correctly and when drawing slowly it becomes wavy.
I'm also interested if there's anyone not having this issue.
for me, fast would be straight and slow would be wavy...
It could be bad software. I read the LauncherPro thread here on XDA, and people are experiencing this choppy behavior on their Nexus S' and so on using LP.
Bad Sense coding? Might be. Can people with custom ROMs post their results?
Sent from the future.
__________________________
The quality of my life would be greatly reduced if I did not have nostrils.
I took that picture on LeeDroid 1.5.1 but that being said, it was the same result when I was on stock as I tested it out before.
I wonder if it's the same with a CM7 Gingerbread ROM.
junta_mpb said:
I tried to do this with a drawing app and I can make "straight" diagonal lines when using a swipe action. I can also recreate the sample posted by drawing the line slowly.
What this means for the digitizer, I will leave for others to pursue.
Cheers from my DHD.
Click to expand...
Click to collapse
Id say that when moving fast you exceed the 50 hz limit and not all the "reading points" are used.
But it might be software related, could anyone with CM7 try to reproduce this?
Sent from my Desire HD using XDA App
It is all about software, the digitizer itself is great. I have a touchscreen pen, and I can draw bullet straight lines with it, no matter how fast or slow.
Then when I put my thumb on the screen and draw, the result is wavy. Our devices just need better handling for large touch areas.
jkoljo said:
It is all about software, the digitizer itself is great. I have a touchscreen pen, and I can draw bullet straight lines with it, no matter how fast or slow.
Then when I put my thumb on the screen and draw, the result is wavy. Our devices just need better handling for large touch areas.
Click to expand...
Click to collapse
Hmm! He's right you know. If I press VERY lightly (so only the very tip of my finger is on the screen) I get a pretty straight diagonal - but if I press down with the pad of my thumb, it's got the steps in it.
Seems like it's having issues determining which point is actually the centre of the capacitance.

KF Touchscreen Sensitivity Issues

Hello everyone,
I have been playing with my Kindle Fire, since I got it, and I am about ready to chuck it out the window, or just call Amazon for a new one, but I first wanted to see if you guys had any suggestions. My touchscreen is oversensitive. WAY oversensitive. Oversensitive to the point that if I have to type anything into the keybaord, I will be three letters in, the keyboard will close, and I will have to start over. So sensitive/messed up that when scrolling an article in landscape mode, using only my left hand to scroll, random links will click on the right side of the page. The opposite happens if I do it with my right hand. I like the device, and look forward to rooting it, and ICS goodness eventually, but I wanted to know I have a dud and need to return it, or if there is some hidden setting somewhere or what. I am open to trying anything. Side note: I also own a thunderbolt, and find its touchscreen too sensitive, but nowhere NEAR the KF. I am making sure to make deliberate presses and swypes, and trying to make sure no extraneous part of my hand interferes at all. (sometimes even using one hand to poke at the keyboard with the device sitting on the table will still produce the problems.)
Thanks for the help!
Brock
Hey Brock!
I've noticed that my screen is a little more sensitive than my epic 4g but not to the extreme you are talking about.
Perhaps your screen is bugged or something try calling amazon and see what they say.
Also as a side note try rubbing your hands over the screen smudge it up pretty good. Does that make a difference? I know it will look ugly but maybe there was a film or something on the screen. Just to test
*forgive any grammar or spelling mistakes I injured my right hand and it is hard to type with bandages *
Hi
I have a bunch of problems too. Mine is sensitive, and its sometimes a problem not overscroll, but yours seem to be extreme.
As a way out, if you have time drop by a BestB** and try it there, if yours is the same, not to much left to do....
I've been using mine all day and I don't even need to touch the screen. If I get my finger really close to the screen it reads as a touch. I'd say that's a tad too sensitive.
Sent from my HTC Sensation Z710e using XDA App
johnsmith970 said:
I've been using mine all day and I don't even need to touch the screen. If I get my finger really close to the screen it reads as a touch. I'd say that's a tad too sensitive.
Sent from my HTC Sensation Z710e using XDA App
Click to expand...
Click to collapse
They are all like that. Its because the touch screen is capacitive. My Screen at work does that.
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
TheDreamer68 said:
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
Click to expand...
Click to collapse
Same here. I have to sometimes tap things a couple of times to register...
TheDreamer68 said:
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
Click to expand...
Click to collapse
Same here, I feel like I have to push the screen really hard to get it to register. I hit the screen lightly and it does not register my touch. I'm used to my EVO 4g, maybe it is just a lot more sensitive than the fire.
TheDreamer68 said:
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
Click to expand...
Click to collapse
Same problem here.
TheDreamer68 said:
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
Click to expand...
Click to collapse
Same here, but it's not as simple as it not registering the touch. Most times the button will animate to show I've touched it but nothing happens. It happens most often with the back button, but happens in the browser and some other apps occasionally. I've had some luck with slower more deliberate taps, but it seems like a software bug to me.
Sent from my Kindle Fire
I was using my mom's so I could teach her how to use it, and see if I wanted one. Her was also not sensitive enough many times. It wasn't just that I am used to my Droid 2 because my mom who never used a touch screen before had the same issues. Sometimes it would take 3 or 4 taps to make it work. I just thought it was a bug that would be fixed. It was minor. I ordered my one, so on Tuesday I will see how mine is.
OP I say contact tech support immediately.
My screen is fine, the only problem I'm having is the menu gets pressed, it shows that it was pressed but nothing happens
Sent from my Kindle Fire using Tapatalk
The two kindle fires I've used have the same touchscreen issue: there is a jerk (along the longest direction of the screen) on touch down. Once the finger is down the reported position is fairly stable, but the initial touch down needs to be smoothed out (or the first few samples from the touch screen should be thrown out).
This causes most of the issues I've seen on mine, where pressing buttons is either inaccurate or they go down and come up without activating (because the touchscreen reported a touch down inside the button and then jerked out of the button area and reported a touch up).
I've spent way too much time on touchscreen drivers (way too much!) and this is a fairly common electrical issue, and the software workaround is fairly straightforward to implement in the kernel. It's surprising that Amazon shipped the device like this (as well as various SGX drivers issues on some apps), especially as every review mentioned it as an issue!
Anyway, once we can build and flash kernels reliably I'm sure we can fix most of the touchscreen issues.
My kindle too !!!
Because of this, I'm getting very stressed ㅠㅠ
It's a matter of the touch panel... would be fixed by software?
If this is not possible... Then I'll be selling the Kindle
I downloaded an app called ILITEK Touch Utility which appears to have made my touchscreen work better. It is in the Google Market.
TheDreamer68 said:
I'm having the opposite problem...I'm finding the touchscreen not sensitive enough....
The Dreamer
Click to expand...
Click to collapse
Exactly x100
Sent from my Kindle Fire using xda premium
krelvinaz said:
I downloaded an app called ILITEK Touch Utility which appears to have made my touchscreen work better. It is in the Google Market.
Click to expand...
Click to collapse
I'll have to try that out, would be nice to tweak it some Thanks!
mine is not too sensitive, sometimes i have to press multiple times for it to register
Bumping this thread, because this issue is annoying the hell out of me. Those having the touchscreen not being sensitive enough, it's the same issue as those finding it too sensitive. The problem in reality is that it's ridiculously sensitive, and as your finger presses down on the screen, it's sometimes reading that as an attempt to swipe/scroll rather than a tap/press, which is why you see things light up still, but not launch.
This is frustrating me more and more as time goes on. I've tried this, which I can tell adjusts some of these settings but doesn't really make much difference for the problem. I've also tried this, which didn't help any after calibration.
Some people have speculated (or confirmed, for all I know) that this can be adjusted via the kernel. Does anybody know of anything that might help with this? It's so sensitive it's making me want to avoid the damned thing. I'm about ready to restore the stock ROM and give it to my sister as an early Christmas present.
The awesomeness that is Hashcode is working on 3.0 kernel over in the dev section. The kernel is still a work in progress and has come a long way. At the end he is apparantly going to update the touchscreen driver. I hope that will fix any said issues.
Sent from my Amazon Kindle Fire using XDA

[Q] Possible Touchscreen/Multi-Touch issue?

Multitouch Visible Test
With that app, 1-finger touch is alright, no issues.2 Fingers seems alright too. Adding up to 4 fingers seems to be alright and moving them around the screen.
Sometimes with 5 fingers though, they'll all show on the program, and then immediately vanish. If I keep moving my fingers across the screen, they'll pop in and out, but won't actually stay on screen and follow. But this only happens sometimes. Other times, 5-finger input works fine.
My other camera is dead at the moment and I have to run and get batteries for it tomorrow, so I can't actually upload video of what I mean. I was hoping to get some input from other people about how their multi-touch seems to be with that app. Not entirely sure if this is just a rare defect, widespread, or working as intended maybe (not entirely sure if there's anything saying how much multi-touch this screen is; figured it was 10 though)
Some things to try:
- Use 1 finger, drag it all over the screen
- Keep adding fingers 1 by one after dragging them across the screen (add finger, drag it around, add next finger, etc.)
- Don't touch the screen for about 3 seconds, then just have all 5 fingers come in-contact with the screen, and keep them in one spot (on mine most of the time, the points appear then immediately vanish)
Could it just be the app your using?
Try using this one...
Check out "MultiTouch Tester"
https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
See if it does the same thing.
Sent from my SPH-L710 using xda app-developers app
jjdevega said:
Could it just be the app your using?
Try using this one...
Check out "MultiTouch Tester"
https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
See if it does the same thing.
Click to expand...
Click to collapse
Yea it still does the same thing :/ Here's a video:
It could be as simple as compatibility issues with the app...
Sent from my SPH-L710 using xda app-developers app
Called up Google and it doesn't seem to be widespread (or at least the person didn't say it was), and I could get a replacement under warranty. I don't have the funds to put on hold currently so it'll have to wait if I do decide to do it.
Although I wonder if I really should, I mean I highly doubt I'm going to do anything requiring more then 2 fingers on the screen at any point (nor can I really think of anything), and aside from multitouch, everything else seems great. No dead pixels, back doesn't flex, screen is alright quality-wise.
Would be nice if some other people can try out multitouch though just to see if it really might be widespread or not though. The thing is though, it works fine sometimes, and other times it doesn't. Perhaps software might fix it in time, but I don't know. I thought I heard of the Nexus 7 having a similar issue, but I can't recall...
jjdevega said:
It could be as simple as compatibility issues with the app...
Click to expand...
Click to collapse
It seems to do the same even with the "Show touches" option enabled in Developer options (tried it on an empty homescreen).
Bump
Anyone? It only takes a minute or two at the most to test this... and the apps available to do so are free and light.
Doing the tests you described never caused anything on my tablet. But if I put my hand down on the tablet flat then put my five fingers on I get your issue. Then wait three seconds and try again and everything is fine till I put my palm back on.
Might be a badly configured palm detection algorithme? Op, do you have fat fingers? Sorry if that sounds rude
Chluz said:
Might be a badly configured palm detection algorithme? Op, do you have fat fingers? Sorry if that sounds rude
Click to expand...
Click to collapse
Lol, hmm, na I don't think I have fat fingers
How about fruit ninja, does that work properly? It's true that if show touches doesn't work, it's not a good sign. Unless it's a system firmware bug
1 and 2 fingers seems to work great in Fruit Ninja; 3+ randomly works or doesn't work, and when it does work it seems to cut-out at some point and then just show slashes delayed from where my finger is currently
Any idea if its hardware or software related? I have the same issue with my N10 and don't know if I should get a replacement or not.
Got mine today, same issue. Actually, that too bad since everything works fine, and i only got a minimal light bleed. I hope my replacement won't be worst regarding light bleed :/
Same issue on mine. Considering a replacement now with this and wakeup lag + battery issue (indicator not updating % at all!?)
Don't know if I wasn't lucky or just poor QA.
I'm pretty sure it is a software thing because when the problem occurs and I tab on the multitasking button twice (so it shows the multitasking menu and switches back to the app) the touchscreen acts normal again until I put more than three fingers on screen.
But if its a software problem, shouldn't it happen to on every N10 running the same Android version?
I have the same issue. If I slowly add one touch at a time, it usually works. But if I touch down 3+ fingers at once it gets very confused and bounces between zero and N touches. I have a Galaxy Tab 10.1 (first generation) and multitouch seems to work much better on it than the Nexus10. However, I did notice that the Nexus10 is better at distinguishing 2 very close touches than the GTab. On the Nexus10 I can have my fingers as close as 1/2 inch or so before the touches merge. On the GTab it is more like 3/4".
Hmm, kind of interesting to see that others are also having a similar issue.
I noticed that when I tried a custom ROM (latest Kernel sources + 4.2.1), the multitouch seemed to work, slightly better (the issue still occurs, just maybe not as much). Not too sure if it was placebo or what though.
I called the support and will replace mine with a new one. It might be just a software issue thats solved with an update but I don't want to risk it.
just got my replacement today, same issue (and also worst light bleed ). Third replacement on this way...

Touch problems with video proof

So, as we all know, some OPO's have touch issues. Many are because of software and many are because of hardware. My OPO suffers from both, and here are two screencasts as proof. I muted the sound with Movie Maker since it's not relevant to what I'm showing you.
The phone is lying flat on my desk and I start off by adding one finger from my right hand, then another finger. Then I add a third finger from my left hand and start moving it around as you can see in the videos, all while keeping my right hand fingers perfectly still. Without a charger or USB connected (to my computer), the touch is crazy. With a charger or USB, the touch is perfectly fine. This is with the latest touch firmware, might I add, and the touch was just the same with the previous versions. Definitely a hardware error (grounding?).
Touch without charger or USB:
Touch with charger or USB:
That's is interesting mate, that's quite a find tbh, would charging and not charging be a bug in the firmware....
Sent from my A0001 using Tapatalk
Just had a go myself. I get the issue after using 5-6 fingers, more so when the device is flat (odd). When I charge the phone and do the test it is gone completely. Only difference in my situation is that it doesn't crop up when I'm typing, I don't suffer from ghost swipes etc when doing normal browsing or playing games. It functions as good as my M7 until I start to use 5+ fingers on the screen
jojohnson250 said:
That's is interesting mate, that's quite a find tbh, would charging and not charging be a bug in the firmware....
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
No idea, tbh. It seems that the ghost swipes are gone with the latest firmware and that I can type quickly. Seemingly so after directly booting the phone up, at least. My OPO lies shutdown on my desk most of the time since I use my S5 daily. Just knowing about this issue bothers me a lot, though. I wonder what OP will reply in the mail I sent them. They (a support guy) asked me to send them videos of the problem so that they could help shedding some light as to what issues I'm facing.
I tried it as well when you plug it in I can use 10 fingers and no issues without plugging in anything above 6 screws up :/
Sent from my A0001 using Tapatalk
Galactus said:
Just had a go myself. I get the issue after using 5-6 fingers, more so when the device is flat (odd). When I charge the phone and do the test it is gone completely. Only difference in my situation is that it doesn't crop up when I'm typing, I don't suffer from ghost swipes etc when doing normal browsing or playing games. It functions as good as my M7 until I start to use 5+ fingers on the screen
Click to expand...
Click to collapse
jojohnson250 said:
I tried it as well when you plug it in I can use 10 fingers and no issues without plugging in anything above 6 screws up :/
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
I wonder if all OPO's have this grounding (?) issue.
Theshawty said:
I wonder if all OPO's have this grounding (?) issue.
Click to expand...
Click to collapse
Probably. The fact that it doesn't happen to everyone unless they use a lot of fingers at once is more than likely the reason some say they don't have it. If I didn't install the multitouch test app I'd assume the screen is perfect since I never use more than two fingers on the screen at once anyways
Galactus said:
Probably. The fact that it doesn't happen to everyone unless they use a lot of fingers at once is more than likely the reason some say they don't have it. If I didn't install the multitouch test app I'd assume the screen is perfect since I never use more than two fingers on the screen at once anyways
Click to expand...
Click to collapse
Then my One must be pretty darn bad since it started acting up after only four fingers. Not that I'd ever need that many simultaneously for anything other than touch testing apps, though. I think I most likely have a general touch issues as well as most issues resolve themselves after a reboot but come crawling back slowly.
Theshawty said:
Then my One must be pretty darn bad since it started acting up after only four fingers. Not that I'd ever need that many simultaneously for anything other than touch testing apps, though. I think I most likely have a general touch issues as well as most issues resolve themselves after a reboot but come crawling back slowly.
Click to expand...
Click to collapse
You might be better off not purchasing any device with the "One" name regardless of whether it is HTC or OP based on your track record lol. It does sound like general touch issues though. Good thing you have the S5. Personally I'd keep the phone though and have it as a spare when/if newer updates help to alleviate the issue.
Galactus said:
You might be better off not purchasing any device with the "One" name regardless of whether it is HTC or OP based on your track record lol. It does sound like general touch issues though. Good thing you have the S5. Personally I'd keep the phone though and have it as a spare when/if newer updates help to alleviate the issue.
Click to expand...
Click to collapse
Yes, I think so too. I had it up for sale but took the ad down as I felt like keeping it instead. Besides, the touch seems better with the new "firmware" and might just "do" as a spare. Would be nice testing some CM-infused Lollipop too.
Theshawty said:
Yes, I think so too. I had it up for sale but took the ad down as I felt like keeping it instead. Besides, the touch seems better with the new "firmware" and might just "do" as a spare. Would be nice testing some CM-infused Lollipop too.
Click to expand...
Click to collapse
Good, sounds like the best course of action to me
Galactus said:
Good, sounds like the best course of action to me
Click to expand...
Click to collapse
Saves me from the hassle of getting rid of a device that I don't really need to get rid of. I've already earned back what I paid for it anyway.
Sent from my SM-G900F using Tapatalk
Theshawty said:
I wonder if all OPO's have this grounding (?) issue.
Click to expand...
Click to collapse
Have you try with COLOR OS
Same problem?
LOL i posted about USB connected a week ago.. And best is try to connect USB cable (only cable) without computer. Multitouch will work properly. I had that issues but they gone dunno why.
gerciolisz said:
LOL i posted about USB connected a week ago.. And best is try to connect USB cable (only cable) without computer. Multitouch will work properly. I had that issues but they gone dunno why.
Click to expand...
Click to collapse
Shouldn't it be possible to built a small plugin which then serves as a dust cover for the micro usb connection, which also cures all multi-touch issues... i smell money in the air :laugh:
AcmE85 said:
Shouldn't it be possible to built a small plugin which then serves as a dust cover for the micro usb connection, which also cures all multi-touch issues... i smell money in the air :laugh:
Click to expand...
Click to collapse
LOL yep i thought about it too.. But better thing should be to find this not grounded part and physically connect it.. Dunno maybe bend some metal part of usb just 1 milimeter can help but maybe not.
I removed my case and as i had the phone in my hands the touch was perfect. The touch was perfect when I had earphones plugged in.
Sent from my SM-G900F using Tapatalk
gerciolisz said:
LOL yep i thought about it too.. But better thing should be to find this not grounded part and physically connect it.. Dunno maybe bend some metal part of usb just 1 milimeter can help but maybe not.
Click to expand...
Click to collapse
Someone tried something like this
http://forum.xda-developers.com/showpost.php?p=55195874&postcount=1783
Unfortunately he did not post any pictures. Side effects like increased heat could come with this modification.
Curious, do you have the hardware buttons activated? It maybe in my head but I just tried this and the touchscreen seems better (no random movement nor false presses or merges) when the hardware buttons are disabled. I dont really find the touchscreen a problem but it may help you guys, I am sticking with software buttons now (always did with my nexus ) and cant complain now!
hicks12 said:
Curious, do you have the hardware buttons activated? It maybe in my head but I just tried this and the touchscreen seems better (no random movement nor false presses or merges) when the hardware buttons are disabled. I dont really find the touchscreen a problem but it may help you guys, I am sticking with software buttons now (always did with my nexus ) and cant complain now!
Click to expand...
Click to collapse
The problem here is that the touch panel doesn't properly ground to the back cover for some strange reason. Notice how the touch works brilliantly in my other video? Yeah, that's because I now grounded the phone by physically touching the back cover (I had to take off my flip case for this). It also grounds as it should when there's some electrical current entering the usb port in some way (either by a wall plug charger or a USB cable connected to your computer).
It has to be bad grounding. Nothing else makes sense.

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