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[ZS620KL] Touch panel issue.

Alice_Renaut
Star III
Please tell us some basic information before asking for help:
Model Name: ZS620KL.
Firmware Version: Latest (.99).
Rooted or not: Non-rooted.
Frequency of Occurrence: Persistent.
APP Name & APP Version (If your issue relates to the app): Everywhere.
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
========================================
Hello, moderators!
I bought a ZenFone 5Z to play a few games that are heavier than my previous smartphone could run.
I'm satisfied with the graphic performance and even the audio is enough to make the game fun.
But the touch panel is not congruent with the overall performance of the device.
In shooting games (more noticeable in those in first-person, although also present in those in third-person) the aim simply does not follow the given command as it should.
There is a delay in response, where the finger goes and only after almost 1 second the aim follows (which seems little, but makes a huge difference in this kind of game).
Besides the problems when trying to make fine adjustments when aiming.
One of them happens when you lean your finger on the screen and try to move the aim slowly. The aim only starts to move after the finger has moved a little, as if there was a dead zone before the response when the finger slides.
The other problem occurs when sliding the finger, also slowly, the screen flickers, as if the response of that finger pulses between each area touched during the slide.
By the way, all these things are not only felt in games, but in the system and also in test applications it is possible to reproduce.
Could you check these issues?
37 REPLIES 37

Anders_ASUS
Hall of Fame III
Alice Renaut

By the way, @Christine_ASUS.

There are some things I would like you to test (and this I am sure you will be able to reproduce).

Using a multi-touch tester, it can be the one from ASUS or the one from 511plus (available on the Play Store, with graphics that show the problem more clearly), you will slowly slide over the screen one finger, then try with two, three and so on.

You will notice, with extreme ease, the problem we are reporting, from the three-finger glide.

All the other devices I've had have never performed so badly, even with more than five fingers on the screen.

This causes the problem of fine-tuning the scope in shooting games, even with only one or two fingers.

As for the delay, it is also easy to check.

First, in the multi-touch tester, move two fingers quickly over the screen (also more evident when using more fingers) and notice that the graphic (which represents the touch) is even one or two centimeters away from where the finger really is.

Another delay, this one more annoying, happens when you lean two fingers on the screen and when you try to move one of them slowly, you notice that the movement is only recognized half an inch or more (the slower, the more noticeable the issue becomes).

Could you test and comment about these three issues?

Couldn't these be caused by a failure in queuing actions due to thread asynchrony or even between the CPU and the GPU?


View post
I believe we already know about all the bug you mention except maybe this one
"Another delay, this one more annoying, happens when you lean two fingers on the screen and when you try to move one of them slowly, you notice that the movement is only recognized half an inch or more (the slower, the more noticeable the issue becomes)."
I'm unable to reproduce it as I don't fully understand where or how I'm supposed to lean my fingers. I've tried several combinations but never have I succeeded in getting half an inch away without the touch point moving.
It's important that we get this feedback ASAP as we're currently talking to the panel vendor about fixing the stutter issue with one slow moving finger or when using three or more fingers.

Alice_Renaut
Star III
Hello, @Anders_ASUS, nice to meet you!
This delay that you don't understand usually occurs to me when I'm in game position, with the screen in landscape mode and the fingers positioned in the move character/move camera format.
When you rest your two fingers on the screen as if you were not going to move them, then try to move one of them (extremely slowly) as if you were going to make a small adjustment on the scope (try to move your finger millimeter by millimeter), you notice the "dead zone".
By the way, I would like to add that stuttering also happens with two fingers, it is with two fingers that it is most disturbing in games.
In the .87 version, it has improved the two-finger situation, but it still exists, and it has become protruding again in the .92 version.
Thanks for your attention!

burakterzi91
Rising Star I
Alice Renaut

Hello, @Anders_ASUS, nice to meet you!

This delay that you don't understand usually occurs to me when I'm in game position, with the screen in landscape mode and the fingers positioned in the move character/move camera format.

When you rest your two fingers on the screen as if you were not going to move them, then try to move one of them (extremely slowly) as if you were going to make a small adjustment on the scope (try to move your finger millimeter by millimeter), you notice the "dead zone".

By the way, I would like to add that stuttering also happens with two fingers, it is with two fingers that it is most disturbing in games.

In the .87 version, it has improved the two-finger situation, but it still exists, and it has become protruding again in the .92 version.

Thanks for your attention!


View post
I totally agree with you.I show you an example of this.
I made a video to show this now
.@Anders_ASUS @Alice Renaut
But .87 didn't fix the problem completely, it was the best improvement with the screen .92 and .99 got worse.

burakterzi91
Rising Star I
burakterzi91

https://zentalk.asus.com/en/discussion/comment/118997#Comment_118997

Yes

I tested it for 2 minutes. I cut the video because it was long. The same happens in the game, after a while, he can not detect it. has a multitouch problem. Short-term tests are misleading. When I test it, it works well, but test for a long time, the screen does not detect touch. I also have a second or two lag in games, but I have to keep my hand off the screen, and there will be a perception problem when I stay on the screen for a long time.

Also It will also be difficult to show in the game. It works properly for a while, when suddenly it doesn't detect when you need to press the skill for a second or two, 1.2 Seconds destroys your whole experience in the game.

I have no problem with daily use. An app that will enable multitouch (if I open a game) suddenly the screen reacts late

our wish is stable multi-touch/touch screen response

https://us.v-cdn.net/6031231/uploads/GK1QCZTVXF2I/video-20200928101117488-by-videomaker-s01.mp4


View post
It wasn't detected on the vertical screen, it just doesn't have to be the horizontal screen. Suddenly not detecting on the multi-touch screen I showed it today
Watch multitouch tester video 🙂 @Alice Renaut

BrunoF20
Zen Master I
I can reproduce the delay she's saying, sadly, it's only detected when recorded with another device.