Ghost touches - Redmi Note 9 Questions & Answers

Hey guys!
I recently bought the phone (2 days ago to be exact) and i'm getting ghost touches. Anyone else having the same issue? Is there a fix for it?

Could you describe the difficulty you're having?
Fwiw, I haven't noticed any problems with the touchscreen - I just used the Multi Touch Test app to check it was detecting multiple touches accurately. It was accurate up to 10 points (when I ran out of fingers!)
No "ghost" touches registered
This is on a 4/128gb RN9 with stock MIUI global EU 12.0.2

Related

Nexus 6 touchscreen issue?

So recently, mostly on swipe enabled keyboards, I have been seeing a ghost swipe register when typing. This happens on all keyboards I've used so it is not a keyboard issue. I saw someone on reddit recently with the same issue and was wondering if it had been reported prior for this phone. I'm coming from a nightmare experience from the OPO's touchscreen so I'm here looking for advice.
I started to notice it about a week ago when texting. At certain occasions, it could act as though i was dragging my fingertips instead of individual taps. Now I have tried this with and without a screen protector and gotten the same issue. I have also only been using 5.1 since I got this phone, so I cannot say that it is an issue with the software since I have nothing to compare it to. I device is unlocked but not rooted and is running the D revision of 5.1.
Anyone seen this corrected, or should I just go ahead and RMA. My phone was built on 3/7/2015 so it is still very new.
EDIT: RMA'd.

New Mi5 owner here! Does anybody else experience erratic capacitive button behaviour?

Hey there everyone, I got my Mi5 a couple of weeks ago. I flashed Slim7, but right now I use the latest Lineage OS as my daily driver.
Although, user experience has been great I faced a bug in both ROM which I believe is firmware related, but I don't really have a solution. I am not sure if it happened in stock, but in both custom ROMs that I used, sometimes the capacitive keys (back and recents) would stop working. This happened every 5 minutes or so and it only gets fixed if I lock and unlock the device or if I navigate to somewhere else, hence the reason I believe this is software related.
I did a bit of digging around and some people who were also affected by this concluded that might have to do with certain panels being incompatible the kernel, since Xiaomi uses both LGD and JDI panels for the Mi5.
Has anybody managed to solve this issue? A workaround would to enable on screen navigation but I would prefer not to.
Cheers!

mi 9 multi touch problem

My mi 9 seems to be able to only detect 1 finger. Completely wiped phone and problem still persist. Anyone with same issue or able to fix issue?
I have the same problem. Have you found any solution?
youtube.com/watch?v=dLa-oHLig7U
I have that same problem. Could you help
Happened the same issue to my Mi9. Multi touch was working normally but suddenly it stopped working while I was zooming on a web page. Then I made a factory reset but still didn't work. Today I updated to Miui 12 hopping the problem would be solved but still no success. I think this bug is related to Android 10 as I saw elsewhere someone rolled back to Miui 10/Android 9 and things got to normal. On the other hand this is not a hardware failure for sure since multi touch keeps working normally on apps running in game turbo mode.
So, has anyone found how to kill this annoying bug?
Thanks for any help.
ive been searching everywhere how to fix this. i already email xiaomi about this issue. still didnt find clue how to fix this bug. still hoping that xiaomi will fix this issue.
This issue is a shame for Xiaomi!
As far as I know the only solution is to downgrade to Miui10 and stuck on this version or take the risk to upgrade to Miui11 (not recommended for obvious reasons) or the fresh new Miui12. So far I've been using the "turbo game" thing to workaround the bug. I had to install some alternative apps from Google Play (such as Chrome Beta, other gallery app, Google Maps Go...) to use instead of the stock apps so I can use them with "turbo" and get pinch to zoom working. This is not the best way to solve the issue -- the ideal is to get multi touch back working again without the need to resort to any tricks -- however it works very well. Maybe one of these days I'll get some patience to setup the good old Miui10 again...
i also have this ghost touch on the upper part of the screen. it came same time as the multi touch issue. it cant even fix by game turbo. i cant even play games normally like moba or fps game. i dont know if its just me have this ghost touch issue. its a big shame for xiaomi flagship phone?
No news about this issue? Everything works fine with Pixel Experience in my MI9 but multitouch. I remmember I solved another problem (auto-rotate didn't work for the display) and I solved it flashing only last version of "persist.img".
Same here bro!
I bought my Mi 9 in February and everything worked well. I also upgraded to MIUI 12 with no problems at all, then suddenly multitouch stopped working.
If I flash Pixel Experience will the problem be solved?
03jack said:
Same here bro!
I bought my Mi 9 in February and everything worked well. I also upgraded to MIUI 12 with no problems at all, then suddenly multitouch stopped working.
If I flash Pixel Experience will the problem be solved?
Click to expand...
Click to collapse
No way, Installing PE doesn't solve the problem.
I'm going to try it with new kernels and FWs.
ommerus said:
No way, Installing PE doesn't solve the problem.
I'm going to try it with new kernels and FWs.
Click to expand...
Click to collapse
Let me know if it works
03jack said:
Let me know if it works
Click to expand...
Click to collapse
It doesn't work at all... nothing... so tired of this...
ommerus said:
It doesn't work at all... nothing... so tired of this...
Click to expand...
Click to collapse
Try to flash MIUI 10... I read somewhere it should work, because MIUI 10 is built on Android 9, which doesn't have this issue
same i have this issue, i tried miflash. the only workaround are miui 10 and game turbo method.
also i have this nonresponsive part of the upper screen, right where most game analog button placed. idk if this "dead touch" is connected to this multitouch issue
This was the first and probably the last Xiomi I bought. Back to iOS. Bought a second hand iPhone 11 in mint condition. Working rock solid! Crap Mi9!!!
renz555666 said:
i also have this ghost touch on the upper part of the screen. it came same time as the multi touch issue. it cant even fix by game turbo. i cant even play games normally like moba or fps game. i dont know if its just me have this ghost touch issue. its a big shame for xiaomi flagship phone?
Click to expand...
Click to collapse
Gnonymous7 said:
same i have this issue, i tried miflash. the only workaround are miui 10 and game turbo method.
also i have this nonresponsive part of the upper screen, right where most game analog button placed. idk if this "dead touch" is connected to this multitouch issue
Click to expand...
Click to collapse
Have the same problem here!!!
Upper screen DEAD
Annoying ghost touch on upper screen
Have to type multiple times because It keeps ghost touching...
Can't sell the phone, because of these issues...
Miss my Galaxy note
Is there a fix to this issue now? GameTurbo enhances the touch so that multitouch works. There must be a fix to this.

OnePlus 3T Werid Touchscreen Problem (Touch Does Not Respond Some Times) !!

Hello!
I recently bought OnePlus 3T it was in good condition and everything is working perfectly. All of a sudden i started noticing that i am having difficulty typing so i screen tested and found out that sometimes touch does not register and next time it register not problem.
I flased multiple ROMS (Including HAVOC OS) but they does not seems to fix the Problem i uploaded a Video for bertter understanding.
Please Help me Fix this problem.
Thank You!

Question Question: Ghost touch problem at Mi 11 ultra. Ayone have same problem?

Hello community.
First, I apologize there may be some difficult to know what I want to say because of my poor english skills.
I bought CN version Mi 11 ultra last week. I have been using it but sometime I feel something wrong about touch input while gaming.
So I recorded video while playing game with touch position indication.
Here is the video.
It looks like happened when two finger input.
When problem happened, it seems like switching 2 touching position very very fast between currently touching.
It looks like only single touch is recognized in phone system...may be...
Anyone have same problem? And I expect someone have solution.
Yes, I've had it when typing on gboard and then I changed to SwiftKey and same issue
Sometimes a ghost touch makes the keyboard disappear
It happens less now I'm on 12.5.4 but sometimes still, there's an issue
Maybe related to notifications arriving at the top
I haven't figured it out yet or had much time to work on it
Touch quality was very bad , my old OnePlus 8 pro too much better touch sensitivity
I already asked in forum about that touch problem...
Touch function quality
Hi Recently i bought xiaomi 11 ultra Chinese version with global rom about a week ago, coming from OnePlus 8 Pro (that was my main device for last 8 months). Last week i noticed slow touch response and i feel the touch function was very slower...
forum.xda-developers.com

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