topic Re: TOUCH SCREEN PROBLEM, I REPRODUCED! in XZ Series

Touch screen problem, I reproduced! Twice! Problem exists on Oreo!

ztcontrol — Sun, 22 Oct 2017 17:54:59 GMT

i'm from china,

sorry about my english.

so many people face this problem,

the touch screen seems not so funtional,

i find it's a VERY LARGE LAG in fact

in the vedio below, at 24sec, you can see

a short line i painted is not displayed immediately

when i paint next row, it displayed

https://youtu.be/l9vgGZeJj1Q

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Lord_viridis — Sun, 22 Oct 2017 18:23:23 GMT

I really don't see it..

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Sun, 22 Oct 2017 19:27:11 GMT

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Uliwooly — Sun, 22 Oct 2017 19:28:02 GMT

@ztcontrol

What are we looking at?

settings > about phone > diagnostics > test > test touchscreen

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Sun, 22 Oct 2017 19:45:53 GMT

in the gif i post,

focus on row 4, column 5,

i touched the screen there, but no line display

and when i touch next line, it displayed

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Uliwooly — Sun, 22 Oct 2017 20:26:05 GMT

@ztcontrol

I still don't see the problem, install AZ screen recorder > follow my test steps > start recording the screen when you test the touchscreen

I don't understand what are we supposed to see on the video

You can also contact Sony directly >>> Local support

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

SpicyMochi — Sun, 22 Oct 2017 23:03:24 GMT

Based on his video, around 00:22, 4th row most right dot/line, he tapped it but not registered. However, the following tap register again. Then around 00:28, on the 7th row, it happened again.

I wonder if this issue only found on dual sim variant. Maybe can try a software repair via Xperia Companion.

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Mon, 23 Oct 2017 00:16:56 GMT

Yes, you are right, I mean that is the phenomenon
the phone has been returned to sailer
Now I recall, the first day of the phone just seems to be no problem,
after upgrade the system, the next day I found the problem

Now I bought one again, because I still liked the phone

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

gagge1000 — Wed, 25 Oct 2017 02:21:39 GMT

Does the new one seen to have the problem asewell or not?

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 01:12:15 GMT

new phone arrived,

also has problems,

i find a new method to test this problem

paint short line like this,

you do not to paint very fast,

you could paint lines between a 1second interval,

you will see, sometimes the line just painted doesn't display

and when you paint next line , the prev line displayed

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Uliwooly — Thu, 26 Oct 2017 01:22:45 GMT

@ztcontrol

could you perform the test under

settings > support > tests > Touchscreen > take a screenshot before and after

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 01:31:20 GMT

yes, i do your test ,

in this test the problem not shown,

but touch delay is obvious

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 01:44:50 GMT

@AdnanK588

@Anasarah

@gimli4711

@Sener_34

i find a method to test the problem

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Uliwooly — Thu, 26 Oct 2017 01:46:01 GMT

@ztcontrol

could you make a screen record in normal and safe mode > upload it to youtube > post the link here?

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 02:08:34 GMT

in safe mode the problem also exsit

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

gagge1000 — Thu, 26 Oct 2017 02:22:31 GMT

I have the same exact problem with my touchscreen. Was wondering if i should replace it with a new one or change the phone altogether.

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

Uliwooly — Thu, 26 Oct 2017 02:23:34 GMT

@ztcontrol

Let me know when you upload the videos to youtube

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 02:28:02 GMT

this one is my 2nd one, and the exactly same problem

Re: TOUCH SCREEN PROBLEM, I REPRODUCED!

ztcontrol — Thu, 26 Oct 2017 02:35:31 GMT

https://youtu.be/loiIOAgk3EM

problem at the last two touches

Re: Re: Touch screen problem, I reproduced!

ztcontrol — Thu, 26 Oct 2017 04:01:13 GMT

now, i upgrade the phone to oreo, the problem even more serious...