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ztcontrol

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

Uliwooly

could you perform the test under

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

ztcontrol

yes, i do your test ,

in this test the problem not shown,

but touch delay is obvious

ztcontrol

@AdnanK588

@Anasarah

@gimli4711

@Sener_34

i find a method to test the problem

Uliwooly

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

ztcontrol

in safe mode the problem also exsit

gagge1000

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.

Uliwooly

Let me know when you upload the videos to youtube

ztcontrol

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

ztcontrol

problem at the last two touches

ztcontrol

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

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