Touchscreen issue. - Galaxy S II General

One day there'll be an android phone with a touchscreen as good as the iphone...
Actually the S2 touchscreen seems to be pretty good. The only issue I've found is this: There appears to be a 'move threshold'. I.e. when you touch the screen, the touch-down even is sent fine, but when you move your finger slightly no move event happens. You have to move at least.. maybe 2 mm, before any move events happen, at which point the touch jumps from its original position to the correct one. This has the effect of making all scrolls and pans start with a little jump.
Even the crappy touchscreen on my N1 doesn't do this. To me it sounds like a software issue -- maybe even deliberate -- rather than hardware. Does anyone know why they would do this, or how to fix it?

You should make a youtube video showing this issue.

Multitouch Visualizer shows this issue clearly (as well as, on a positive note, showing the screen can identify and track at least 10 touch points simultaneously -- nice!)

Yup, looks like software big. hope its fixed in next update. Try playing pool break game, the direction change due to this bug is annoying.
Sent from my GT-I9100 using Tapatalk

I think it's a future, not a bug: Not scrolling when you lift your finger off the screen, because you can't lift it perfectly vertically. It happens some time on my DHD.

I've noticed this in every android phone even my nexus one. It must be the way android is written, doesn't seem like there's much you can do about it =(
Also all android phones seem to lag with the touch input. The time between the actual movement of your finger and the screen moving is much greater than ios or wp7 devices. Its like the content is following your finger around lagged while on ios or wp7 its always directly under your finger.

The N1 does it in some places but not all. The most obvious place it doesn't do it in is the (stock) lock screen. It also doesn't do it when you slide the notification bar up from the bottom (but does when you slide it down from the top!)
The SGS2 seems to do it absolutely everywhere. I also think that the 'step' is bigger on the SGS2, although that might just be due to the screen being larger. It's quite possible that when someone creates an AOSP ROM for the SGS2 it'll go back to doing it in the same places as the N1.

Related

screen sensiviity ruining experience

right now........I HATE this phone
the screen is so sensitive it's ruining it for me
even a bit of dust makes it impossible to type a text message. there must be a way to decrease screen sensitivity or it's going back. I'm so pissed off with it right now
Sorry. Think it quite funny.
People have been complaining how insensitive the resistive screen. Now there is a capacitive screen its the opposite.
I hope I don't eat my words in a few days when I get mine.
Quite a few people are complaining about the over sensitive screen then changing there minds after a few days.
How is the dust making it hard?
I love the screen, and tipping is super fast for me.
Best phone I ever have.
The screen is amazing.
Much easier to type than on resesitive screen. you just need to get used to it.
have you guys (found) any videos of typing on the hd2? Wonder what it looks like and if you can become as fluent as with a hw-keyboard?
I have same problem here. I was using Touch HD before and now I can't type anything without making mistakes. T9 helps out but when it comes to password it's getting painfull. When I'm pressing letter on on-screen keyboard I quite often press other keys around. I guess it will take quite some time to get used to it, I don't think sensitivity can be changed.
P.S.
Guys from pocketnow claims that HD2 has about the same sensitivity as Pro2 and definitely less then iPhone. If it so I can't imagine how people are able to use iPhone
we have all been used to resistive till now. you'll adapt dont worry, its a change that we all now have to go through.
i have the ipod touch so i dont think it will be troublesome for me to addapt to the new screen.
after a week with this phone, i love that screen... it is very hard to adapt first few days, but than, everything is so great... it is much better like resistive screen... typing is super fast, sliding is easy...
yes i am also having problems with the high sensitivity, but i'm coming from solid keys so no real surprises! starting to get used to it now. I reckon OP you'll get used to it to. Give it a week or so!
You'll get used to it and never look back, I have an i8910 at the moment (HD2 arriving in a couple of days), which is also capacitive and it just takes a little while to adjust.
Fine here too, although the Opera "flick scroll" is too sensitive in a way - it always seems to scroll too far for me, at least a whole screen, so not as useful as the iPhone equivalent.
Anybody know if that is tweakable somehow?
There are a few practical steps I have found that have minimised the problem (for me) while we restive users come to terms with the capacitive screens we have yearned for:
Don't press too hard - it's easily done in frustration but it actually makes things worse
Align the screen - I don't think the factory calibration is too clever (this made a big difference for me)
Switch to a different keyboard. After labouring with the default keyboard and finding myself in a similar place to the OP, I reinstalled my trusty TouchPal and all is well again
Thse worked for me - hope they are of use to others
kolomnik said:
Guys from pocketnow claims that HD2 has about the same sensitivity as Pro2 and definitely less then iPhone. If it so I can't imagine how people are able to use iPhone
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Same sensitivity as Pro2 ?, lol. They probably got a broken sample.
On the Pro2 I was easily able to put my finger on the screen without a click being registered. With the HD2 we got confirmations this is impossible, as soon as your skin touches the device, no matter how lightly you brought your finger to the screen, a click will be registered.
I used to have a Touch HD beforehand, and after getting the HD2 I noticed I would make a large amount of mistakes, and that typing was extremely hard (especially on the go).
But like others have said, give it a couple of days and you will start to get used to it. I'm definately getting the hang of it. But I would strongly recommend you enable T9. Getting the hang of typing on a capacitive screen comes naturally.
And try out the horizontal keyboard; turn the HD2 sideways and the horizontal keybord will be shown to you. You may find it a bit easier to type on that instead.
This is the best screen i have in any windows mobile, the reason i had an iphone was the capasitive screen it has but now because of this screen i switched to the HD2 and i am more than happy and i don't understand why people complain about this screen its simply FANTASTIC.
I think I can uderstand them, it is beacuse we are used to looking exactly where we are going to click, now, with the capacitive screen, we have to use our finger to do it (wich obviously wont let us see waht we are clicking on). I was a little bit stressed yesterday that I received the phone, but right now I am getting used to it. I am doing now a slide soft motion with the screen, and not the old press hard movement I used to with my HD.
I think it is great, let give it at least a few days so we can get confortable with it.

I have had my HD2 a day.... anyone wanna buy a HD2?

Wow....
I was so looking forward to this device after my Kaiser/XperiaX1/Rhodium. My biggest gripe was always the speed, then the screen size, after all.
But this thing is next to useless. The capacitive touch screen is HORRIBLE, and the lack of a stylus so annoying that words cannot describe. I find that I constantly end up with apps closing when I try to press buttons near the top, etc.
Its impossible to type with, its so inaccurate. Maybe its unfair of me, coming from devices with keyboards but even so, I could type on the screen of my rhodium soo much better.
I guess that boils down to "capacitive screen" too, I guess I'll be going back to my Rhodium and waiting for a snapdragon or tegra powered system with a resistive screen.... Calibrating this thing makes no useful difference.
Sorry for the rant, more than a little frustrated with my £500 paperweight atm.
Nemeth782 said:
Wow....
I was so looking forward to this device after my Kaiser/XperiaX1/Rhodium. My biggest gripe was always the speed, then the screen size, after all.
But this thing is next to useless. The capacitive touch screen is HORRIBLE, and the lack of a stylus so annoying that words cannot describe. I find that I constantly end up with apps closing when I try to press buttons near the top, etc.
Its impossible to type with, its so inaccurate. Maybe its unfair of me, coming from devices with keyboards but even so, I could type on the screen of my rhodium soo much better.
I guess that boils down to "capacitive screen" too, I guess I'll be going back to my Rhodium and waiting for a snapdragon or tegra powered system with a resistive screen.... Calibrating this thing makes no useful difference.
Sorry for the rant, more than a little frustrated with my £500 paperweight atm.
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All I can think is you must have really FAT fingers becuase the screen on this baby is amazing and typing on it is amazing. It's a million times better than the iPhone.
I haven't ever used an iphone for more than a few mins.
I don't think the issue is finger size as I can type better on the screen of my rhodium which is smaller, but resistive. Its more the fact that I touch a button and something happens over the other side of the screen (maybe a slight exaggeration) and apps like Resco file explorer leave me trying to press the same button 20 times before I get it due to lack of Stylus.
Its not usable, its just frustrating.
Nemeth782 said:
I haven't ever used an iphone for more than a few mins.
I don't think the issue is finger size as I can type better on the screen of my rhodium which is smaller, but resistive. Its more the fact that I touch a button and something happens over the other side of the screen (maybe a slight exaggeration) and apps like Resco file explorer leave me trying to press the same button 20 times before I get it due to lack of Stylus.
Its not usable, its just frustrating.
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Just give it a day or two. You'll never want to have an other device...
I really disagree with you on this. I think the screen and the responsiveness is superb to type on. Top of marked for sure. Beats iPhone and Hero imo.
The touch screen on HD2 just like a sexy girl - soooo sensitive.
beating the iPhone and Hero doesn't mean much to me as I haven't done much with either beyond a quick fiddle, but we are all held to believe that capacitive is better, so I was expecting an improvement on my old phones which have all been Resistive.
Maybe mine is broken I guess...
Still, I eventually managed to make a link to the task manager on the start menu. It feels like I fight with it for 30 mins and if I am lucky, I happen to get something done along the way.
If only it was like just about every other HTC phone I have used and had the little drop down task manager on the home screen where the X would usually be...
Its all down to
Calibration.
Ensure you calibrate the screen and calibrate the screen how you tend to use it.
I calibrated the screen with my thumb while holding it in the same hand. Scary but for its size and sensitivity it works great.
Be careful about calibrating with your finger then expect to type great with your thumb. Works okay but you will need some patience. You will get better results with calibrating with your thumb in my situation.
^Agree, re-calibrate your screen & see the differents. If you still want to sell, then put it in the Marketplace...
Try this fix.. For me it was a 100% improvement.
http://forum.xda-developers.com/showthread.php?t=585511
If only it was like just about every other HTC phone I have used and had the little drop down task manager on the home screen where the X would usually be...
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There's a tweak for that already [that puts it back there] - think it's a Dutty job - have a look in the other forum on apps
And BTW - I've owned an iPhone and many HTC touhscreens and I feel your pain - I too have issues with this one typing is pretty inaccurate (typically it seems to trigger the key blelow that which I'm typing on) and sometimes it seems to just not recognise a press at all....I end up jabbing it so hard with my finger sometimes in frustration! I'm becoming more used to it but it is a little dissapointing, given the iPhones screen (for accuracy and responsiveness) is certainly thus far better than this one
Guys, remember, this screen is going to take time to get used to. Capacitive is a totally different beast to resistive.
And one day is not long enough to fully get used to a device. I am having a few small problems with typing (mostly because it's so sensitive and I'm not used to it!).
Once I get used to it, I don't think there will be any problems. I can already type faster on the HD2 on screen keyboard than I could on the X1 hardware keyboard!
Nemeth782 said:
If only it was like just about every other HTC phone I have used and had the little drop down task manager on the home screen where the X would usually be...
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The Dutty's fix for this didn't work for me, but this alternative did, and there's a few other tasty treats on the post too...
http://forum.xda-developers.com/showpost.php?p=4947950&postcount=1
Original Poster's phone could be faulty. I had a demo of an HD2 the other day, and the keyboard was going completely mad: touching the backspace key, for example, resulted in a flurry of detected key-presses not just of the backspace key itself but of all keys around it in all directions. I mentioned this to the guy in the shop and he said that the reason why they had put that one aside for demo purposes was precisely that they couldn't get the screen properly aligned/calibrated on it, and that the other models they had didn't have the same problem. He might have been lying, of course....

Touchscreen not sensitive enough?

Anyone feel the same with their GT10.1? I feel like sometimes I really need to press on an icon to make it launch or swipe really hard to get it to move.
Is there a way to increase the sensitivity? Anyone else notice this too?
It's not a huge problem just a minor annoyance. It just doesn't seem snappy.
I've noticed that about mine too. Nothing major but an annoyance nonetheless.
Sent from my GT-P7510 using XDA Premium App
When I tried the Asus Transformer that's what I found, needed more pressure than I expected for it to register. My 10.1 seems fine, responds to very light touches nicely.
Is there a calibration setting somewhere?
I find myself hitting everything twice. First time it doesn't register, next time I push harder. My XOOM screen is more sensitive. Guess I'm too used to that. This effects swiping in the browser too. Its hard to push gently to move a page up and down. I have to push harder and then every once in a while the page ends up scrolling at high speed all the way to the top or bottom.
It seems to me that I just need to get used to using the larger capacitive touch screen. When first using a smaller touch screen everyone begins to realize what part of their finger is actually touching the screen. I don't know if the screen is any more or less sensitive but I've been getting better at using this larger screen and noticing which part of my finger actually making contact and where.
Ill tell you 1 thing for sure, this thumb keyboard is amazing! I think I might actually like it better than swype! You can really type quick and the auto correct works very Well!
Sent from my Samsung Galaxy Tab 10.1.
Here is some evidence that the sensitivity problems with the screen may be hardware/software related.
After a hard reset the screen appears to be very sensitive.
After an hour screen sensitivity seems to drop.
BUT there is something else going on - at the same time, after a hard reset my Targus capacitive stylus works normally on the Tabs screen.
At the time when the screen sensitivity seems to drop, the Targus stylus stops working. It can no longer be used to swipe the screen or scroll the browser. Finger swipe and scroll still works however.
Now why would the Targus stylus suddenly stop working, unless there is a real change in the capacitive sensitivity of the TAB 10.1 screen such that it falls below the threshold necessary to operate/detect the stylus?
The touchscreen on the Tab 10.1 definitely isn't as accurate or sensitive as the Xoom. I had both side by side for a few days before I returned my Xoom and you can definitely tell the difference.
However, I'll take the Galaxy's screen over the Xoom just from a contrast/color reproduction standpoint, so I guess there are pluses and minuses to everything.
Sent from my GT-P7510 using XDA Premium App
Apparently Tegra 2 is not able to cope with all of the open tasks,live widgets,and have enough power left to make the immediate switch to a larger screem's touch commands.
hagba said:
Apparently Tegra 2 is not able to cope with all of the open tasks,live widgets,and have enough power left to make the immediate switch to a larger screem's touch commands.
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I have a XOOM as well, and it handles multitasking just fine. There is no hesitation or lack of screen sensitivity at all. I pulled it out this morning and was amazed at how much smoother the user experience is. You tap once - the screen responds - on my GTAB 10.1 I have to conciously think about every click and half the time I still have to do it twice.

Multitouch crosstalk on TF touchpad is TERRIBLE

So I've had the Transformer update for about 20 hours now, which has given me time to play with it. The new circular cursor for the touchpad isn't a good design, but I can now see what they were trying to do, as they also use it to indicate touch and multitouch by filling the center of the circle with a dot for a single touch, and adding a second dot for multitouch. What they need to do is add a crosshair to indicate the exact click zone at the center of the circle.
An interesting side effect of the change, though, is that you can now very easily test crosstalk when using multitouch on the touchpad, and the result is NOT good on my B5O dock. I'd guess this is why many folks are reporting problems with multitouch zooming instead of scrolling or vice versa, etc.
To test: Touch the pad at right center with one finger. Move your other finger up and down the left-hand end of the touchpad without moving the other finger. Notice that not only does the left-hand white dot on the screen move, but the other dot also moves a LOT, when it should be staying still. I find it easiest to do this test in an app that doesn't support pinch zoom / scroll and has a dark background, so your eye isn't distracted by motion. For example, Moboplayer makes it easy to see.
Do the same thing again, but with one finger at top center of the pad, and the other at bottom center. If anything, the result seems even worse, to me. Even placing your fingers as far apart as possible at opposite corners of the pad, movement of one finger affects the other significantly. In some situations, it's actually possible to make the stationary finger's dot move exactly the same distance as the dot for the finger that actually moved.
I'm hoping that this is just a software issue that can be fixed in future firmware, but the logical side of me thinks this is more likely a hardware issue, and quite likely one that explains why they never offered pinch zoom until now, as they've found it tricky to try and work around and filter out the garbage data from the touchpad as much as possible.
I'd be interested to know whether the latest B7O docks show this problem too, or if it is improved at all.

Jumpy/Shaky screen while holding finger on my new S8

Hello,
When I scroll down/left/right in my phone and hold my finger on display, the screen automatically shakes left and right or up and down (depending on how I was scrolling my device). This also occurs while charging and while moving an icon on home-screen. I had this issue previously with Asus Zenfone 3, Samsung Galaxy J7 and a HTC Desire (dont remember the exact model though) and a similar issue with iphone 6 (which was registering that my finger was moving on home button). Is this a software problem or hardware problem and how can I fix this ? I have read on web that many people are facing this issue on various phones. but couldnt find any solution yet. Is this my screen sensitivity/touch/display driver/ battery or something else ? If anyone could suggest something, would be really helpful.
Edit: Exactly the same issue as this https://www.youtube.com/watch?v=kxysauxJ5Yk&feature=youtu.be but mine shakes a bit less, still annoys me while playing 8 ball pool and other aiming games like angry birds, etc.
Thanks
There is an app which you can use to test your touch screen by drawing on it. You'll be able to see exactly what it's registering. From what I've seen it happens on a lot of phones with bad digitizers. Try to get a warranty replacement.
LaughingCarrot said:
There is an app which you can use to test your touch screen by drawing on it. You'll be able to see exactly what it's registering. From what I've seen it happens on a lot of phones with bad digitizers. Try to get a warranty replacement.
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Hello,
Sorry for delay. I went to service centre and they said that it is normal because of smooth and silky touch and slight movement of fingers. I explained him that it occurs more while charging and he had to take my phone for inspection.
Here is the correct video : https://youtu.be/PmQ2lra4RXU
My hand didnt have tremors. I agree that human hands are not 100 % stable, however, none of my other phones do it. And if my hand is shaking, then it should shake also while the phone is not charging. When I unplug my device, it stops shaking (almost stops), but when I replug it, it starts to behave weird again when I am holding finger stable. Also, this shaking will move your aim pointer in gaming and it really is annoying while play games with pointer moving.
Is it really normal that your pointer moves while your finger is stable on screen ?

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