The touch screen isn't responsive. - Samsung Galaxy A70 Questions & Answers

When I touch the screen and move my finger around, the screen seems like it's lagging behind my finger, not instantly responding to my touch. This can be felt while playing games like PUBG, or Brawl Stars. And can be felt while in a video and you move the video forwards or backwards.
It's like that option you have for your mouse on the PC where it let's you choose the acceleration of the pointer. The touch is accelerating when I'm moving my finger faster, and de-accelerating when I'm moving my finger slower and slower. Just like the pointer option on PC. The less movement, the more it shows.
And it's not the apps and games, it's the screen itself, but I was just giving examples of where the instant perfect touch response is most needed and is most showing to the user.
I did turn on the option for touch sensitivity in Settings but it didn't have any effect on the issue.

SniperLolz said:
When I touch the screen and move my finger around, the screen seems like it's lagging behind my finger, not instantly responding to my touch. This can be felt while playing games like PUBG, or Brawl Stars. And can be felt while in a video and you move the video forwards or backwards.
It's like that option you have for your mouse on the PC where it let's you choose the acceleration of the pointer. The touch is accelerating when I'm moving my finger faster, and de-accelerating when I'm moving my finger slower and slower. Just like the pointer option on PC. The less movement, the more it shows.
And it's not the apps and games, it's the screen itself, but I was just giving examples of where the instant perfect touch response is most needed and is most showing to the user.
I did turn on the option for touch sensitivity in Settings but it didn't have any effect on the issue.
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Same here. Hope to be a software issue.

Related

screen dims/brightens when I scroll

I notice this in opera, and today in the facebook app too, and was really baffled. The effect is quite subtle, but repeatable. When moving my finger around the screen, eg on the bbc news website panning to the top left, my screen dims. It stays dim when I remove my finger, and brightens again when I pan back down to the right.
Weird, huh?
So far it's just a curiosity and not an annoyance. Has anyone else seen this?
So I am not the only one who noticed this. I sometimes find this behaviour a bit annoying, especially in low light.
The phone has an ambient light sensor. It is adjusting because you are causing a shadow over it.
You can probably turn it off
Under the power settings/backlight - auto adjust backlight. Just uncheck it.
Any idea where the sensor is located?
Do you really think it is the ambient/light sensor? I sure don't. Scrolling through different websites I can easily reproduce this:
You scroll from one point to another, this just has to be a couple of pixels, and the screen adjusts the brightness. That is within a room with a fixed source of light and I am keeping my body as constant as possible to avoid the shadowing.
Scrolling from point A to point B makes the backlight adjust itself, even without casting any shadows or similar. Scrolling back from B to A makes the backlight instantly adjust itself back.
It's your finger causing the shadow, not your body. If you introduce an object into an ambient light source, you will find that said object will reduce the ambient light by a percentage due to partial or total obstruction. The light sensor is detecting this percentage and adjusting the screen accordingly.
The sensor itself is somewhere near the speaker.
I'm pretty sure this doen't have anything to do with the light sensor UNLESS it's cause by the screen itself becoming brighter and this registering on the light sensor, eg internal light leak.
My best guess is that it's connected to the presence/absence of certain colours on the screen, and is related to the video driver. Next time I get it I'll see if I can reproduce when scrolling via the kbd, to eliminate the theories about casting shadows on the screen.
This is not FINGER SHADOW!!!
You can notice this same thing when you plaing Solitare cards and using Stylus.
I'm sure i did't do any shadows and anyway when i pick up any card and moving aroud screen u can notice screen brighting up and down.
Using Opera 9.5, on this site http://game-board.blogspot.com/2008/05/alternative-monopoly-rules-and-game.html zoom in with double-click, scroll about half way down to the paragraph beginning "property has too much pollution on it", then scroll up and down and notice the change in screen brightness. please post if you can repeat. it does not work with the keyboard.
btw, does anyone know monopoly "bloodbath" alternative rules?
I've noticed my screen doing this without causing any shadows & without even touching the screen at all, like a 'breathing effect' when it is completely idle. I think it has something to do with light sensor polling interval which is editable via the registry, advance config and HD tweak...but since I flashed NRGZ ROM (21/08/09 build) this issue has gone anyway.

Touch screen stops working

I'm the [almost] happy owner of a Defy whose digitizer, from time to time, stops working or goes crazy.
The "goes crazy" part it's obvious and it only happens in Angry birds. The game keeps on zooming in and out like, beside the finger that I am putting on the screen, there's an invisible one that shifts on the screen. Seems to be app related as this doesn't seem to happen in any other app.
On the other hand, from time to time, the digitizer seems to stop out of nothing. I haven't noticed any particular pattern on this but it might be driver/app dependent too.
Both of these situations are resolved with a blanking of the screen (top button).
Does anybody else have this kind of problems? Any idea where is the problem?
PS: If I get any more patterns I'll get back.
Yes, very rarely. Screen will not respond and have to time out screen and then it's fine. Usually happens while on charger.
I have trouble with most multi-touch games. After a while, the screen stops responding. Sometimes if I release my touch temporarily it will work again, but by then I'm dead or have crashed Not sure if it's just my fingers sweating onto the screen or something!!
I tried the multi-touch tester app in the market, and it tracks two touches without a problem; so it only seems to happen during games.
eg
Gun Bros
Mini Squadron
The multitouch tester also does the bug. Just try to simulate playing in the tester and you'll see sometimes one finger not responding. But I think there are very few phones with perfect touch screen for playing games. So not a big bug for me.

possible screen issues?

so i have the note 2014 edition and i've been experiencing an issue while playing some games. i play racing games a lot and i noticed that after about 10-15 seconds of continuous pressing on the screean, for example the gas pedal, it stops registering. so then i have to lift my finger and tap the screen a couple times before it registers that i have my finger ont he gas pedal. so even though my finger is on the screen and hasn't moved my car stops accelerating like i lifted my finger from the screen. it does this with multiple games. any ideas on how fix this, are there settings i can change to fix this? any help would be appreciated.
TabletGuy4 said:
so i have the note 2014 edition and i've been experiencing an issue while playing some games. i play racing games a lot and i noticed that after about 10-15 seconds of continuous pressing on the screean, for example the gas pedal, it stops registering. so then i have to lift my finger and tap the screen a couple times before it registers that i have my finger ont he gas pedal. so even though my finger is on the screen and hasn't moved my car stops accelerating like i lifted my finger from the screen. it does this with multiple games. any ideas on how fix this, are there settings i can change to fix this? any help would be appreciated.
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its bug on 4.3 and as i know its been fixed on 4.4.2
if ya look around you will find many threads talking about it

[Q] Wobbly screen scrolling in portrait!

Has anybody else noticed weird scrolling effects, mostly noticeable while scrolling up and down in portrait mode? It exhibits the same behavior in landscape, but I don't scroll side-to-side nearly as much.
With the home button to the left of the tablet, the right side of the screen seems to lead the left by a noticeable amount.

Screen Sensitivity

Is anyone experiencing extreme screen sensitivity? My phone seems to pick up pressure from the outside of the frame and launch random apps, even though i am using my finger to press on other areas of the screen. Not saying that I am holding the phone correctly, but it really seems weird.
Paperinik68 said:
Is anyone experiencing extreme screen sensitivity? My phone seems to pick up pressure from the outside of the frame and launch random apps, even though i am using my finger to press on other areas of the screen. Not saying that I am holding the phone correctly, but it really seems weird.
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only thing I can think of would be check and see if "increase touch sensitivity" option is enabled.
settings>device tab>display> at the bottom "increase touch sensitivity". make sure that option is disabled.
Mine was way too sensitive also, and increase sensitivity was unchecked. Since I put a slim case on, I've had no problems.

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