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touchscreen questions

Can anyone who has installed a custom android type rom let me know if the touchscreen is better once rooted and reflashed. I am talking about sensitivity at the store two different ones now both units are just bad when trying to select something I occasionally had to hit the selection more than 2 times.

I am also interested in if this changes. I read that its hit or miss whether or not thr screen works as intended or has problems, leaving me to believe its a production consistancy issue.
Some love it and some hate it.
Does this sound accurate?

Obsolete X said:
I am also interested in if this changes. I read that its hit or miss whether or not thr screen works as intended or has problems, leaving me to believe its a production consistancy issue.
Some love it and some hate it.
Does this sound accurate?
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Click to collapse
Sounds like it.
There's another thread about this which has a youtube video of one of the ones who said their's was bad and it certainly looked to be the case. In the video on the "home" "page" of the launcher when he swiped in the top half of the screen nothing happened most of the time, while it worked as expected in the bottom half. Mine behaves as expected wherever I swipe...

I'm not going to let on that it will be perfect, but when I moved to TnT Lite (I'm now on 2.2.1), I installed LauncherPro. Within LauncherPro, you can adjust the sensitivity and scroll settings that covers all the launched actions. Also, there's an entry you can add to the local.prop [go into adb shell and type: echo ro.HOME_APP_ADJ=1 >> /data/local.prop ] (requires r/w permissions to update). This change made it smoother (and quicker) to go from screen to screen.
There are still times where I press an icon and nothing happens for a second or so, but it rarely happens anymore with all the improvements that have been added to TnT Lite over the last couple of weeks.

I have had no touchscreen sensitivity issues to speak of with ZPad ROM. I am now running the VEGAn ROM which has really come together nicely in the last few days, and again the touchscreen is as sensitive in all places as I would expect it to be.
Any slowness/lag issues were resolved with the updated drivers that were discovered a week or two ago.
The stock TNT ROM has lots of software issues that are totally unrelated to the hardware. This is most likely one of them. I can't say for sure, since I wiped my unit within 5 minutes of opening the box and installed ZPad.
The touchscreen is still not as good with multitouch as it should be, which I believe is a driver issue, so pinch and zoom and similar multitouch action is not as smooth as it ought to be. But in general use, typing, swiping, scrolling, etc. I am just single-touching and everything works as smoothly and well as it does on my Nexus One phone.

[Q] Touch issues when using pen-enabled apps, anyone?

So, I really really wanted to love this tablet. The disappointments have been many, but this focuses on the most severe and frustrating one.
Whenever I am using Dabbler, Skecthbook Pro, ArtFlow, or any other pen-enabled apps, the weirdest things start to happen. It works OK for a while, but then the tablet only starts receiving input from the stylus. Not even UI elements are usable with my fingers. PLEASE NOTE: I do know the tablet has a stylus-only mode, and this is NOT enabled. PLEASE ALSO NOTE: No, the stylus-only mode in the apps is not enabled either.
After a fresh reboot, I open the drawing app and everything works. Palm-rejection is gorgeous, pen accuracy is spot-on, multitouch gestures as pinch to zoom and panning work flawlessly. But after a while, or after I exit the app and return, it starts progressively degrading performance. At first it only accepts pinch to zoom like 50% of the time. Then it gets worse, until I can't do a thing without the stylus - not even the back, home and multitasking buttons.
I spoke with an nvidia tech support rep, and after a back and forth of emails (mostly me giving him info about the proof of purchase, serial number, etc) he told me to contact the seller (Amazon) and ask for a replacement.
I was about to go ahead and replace it, but I wanted to know if any of you are getting the same issues. On the latest official ROM, can everybody use Dabbler, Autodesk Skechbook, etc. for PROLONGED periods of time, and with a high tablet up time, without issues? Is this issue device-specific?
THANKS so much for any help and sorry for long post.

Touch screen sensitivity

Hello. I have an Nvidia Shield tablet k1 on lollipop 5.1.1. Everything is great about this tablet except the touch screen. It is really sensitive. Also, when I am scrolling, it "jumps" and goes faster than I actually scrolled. It scrolls faster than it should. I found this thread on xda. It helped a little with the being too sensitive issue, but scrolling is still really weird. This is my second device since the first one's micro sd card was defective. They both are like this. Is there anything I can do, or do I just have to deal with it?
http://forum.xda-developers.com/shield-tablet/general/adjust-touchscreen-sensitivity-t2963326

I was opening a thread with this exact same issue. I'm not on stock though (using the latest CM12 nightly), so I don't seem to have the 'Sensor Calibration' option.
Also the touchscreen seems to register a touch even when the finger is not touching the screen.
On the other hand, if I scroll a very small distance (like 0.5 centimetres) the list I'm scrolling doesn't move at all. This doesn't happen on other devices such as my Nexus 5 and Nexus 7 and is very annoying in some cases (some games, or moving the cursor for keyboard input).
I'll try to record a video of this behaviour.
What can we do to fix this?
Update: found a video (not mine) showing the issue I'm talking about: https://www.youtube.com/watch?v=08uPtusOJHQ

anyone else with this issue?

I also have this issue on/off sporadically on stock rom.
I'll be scrolling and itll jump back the opposite direction
Its like it looses track of the touch then catches it again.
It's irritating as my S5, Nexus 2012 have no problems scrolling smoothly.
I don't recall the original shield i tested in store to have this issue either.
Currently having amazon ship me a replacement to see if its just limited to the one I received. (QA issues)

Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.

variance said:
Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.
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Did it fix the issue I posted the video about? I'm on Cyanogenmod now so I don't have the option to calibrate the screen, but I would consider going back to stock if it fixed this issue...

Calibration doesnt help at all , same issue at brand new k1. Nvidia says thats normal functionality lol

Yeah, very normal for a gaming tablet which would require precision...

Not trying to take up for this thing but I haven't had the first touch screen issue with it . so maybe not all is affected?? I've tried to replicate the issue but just can't everywhere I touch and slide is smooth

You mean it doesn't "jump" like the OP said? I don't seem to have that issue either.
I'm more concerned about the touchscreen's precision, as shown in the video.

Oneplus 6 - Unresponsive Screen (Video Included)

I've had the phone since the day it came out. It took me a while to notice but the screen is definitely unresponsive at times. It is actually difficult to notice because, if you are like me and spend hours on your phone every day, if every so often if a touch doesn't register, your brain automatically make you repeat the gesture and you don't even think about it. And, it's OK if it happens like once a day. But with this phone, it's hundred times a day. I thought I was crazy so I recorded a video with my OP5.
See here: https://imgur.com/a/lZS4eVP
OK so this is kind of a very bad occurrence. Usually, it's not always like that. Sometimes it works perfectly fine. I also wonder if this could be the reason why the double tap to wake is also inconsistent, when the screen is off.
Also, yes, I do have a screen protector, but I've had them on all my phones and never had an issue.

Looks like this is happening only with you, is this problem occurring only in specific apps? or globally..
The touch here works snappy and very responsive. Maybe a faulty device? report to service center, I guess.

I also noted unresponsive screen once in a while while trying to click some hyperlinks or items with small clickable icons. But it's not anywhere close to what your video showed. Best and fair thing to do would be: Fresh flash the stock rom, don't install any additional apps then see if the problem persists. If it does, time to call customer service for a replacement unit. Good luck!

I've had similiar issues with my Essential PH-1, turns out it was a defect in the digitizer and I was RMA'd on it.

Nope working great here.

Do I get a new phone if I rma it? Or refurbished?

No I get this sometimes as well. Not nearly as bad as shown in your video, but sometimes it just doesn't register the touch properly and you have to touch it harder for it to register. Or when scrolling it only registers the scrolling partially

i have same problem in the same position

It happens to me sometimes when I tap the screen (for example tapping on a contact in whatsapp) that the screen doensn't respond good. When I tap a few times more and with a little more pressure it's going well. (I didn't test without the factory applyed screen protector)

Do people who have this problem use gestures? For me, the problem also occurs (no reaction when I tap the hyperlink or a small icon) but I noticed that it only occurs when the gestures are on. Maybe there is a problem.

Touchscreen Issue. Two taps becomes a swipe.

I'm having this problem with my NEW mi note 10 phone.
I notice it when first when I'm typing on my keyboard as usual speed.
It kept doing this phantom swipe across two finger taps.
I posted some videos to illustrate my problem.
Is it a software or hardware problem? (This problem is intermittent as well so it's really hard to pinpoint it)
ttps://drive.google.com/file/d/1-QMHaYYpsEizVRpPHqPvzx-E2hUMa0ur/view?usp=sharing(Using keyboard)
ttps://drive.google.com/file/d/1-6M1e33Qxz8HXckkcLb3sWVTXG6fPHzv/view?usp=sharing (Using touchscreen tester, you can clearly see the phantom swipe across the two taps)
Anyone else having this problem except for me?
When this problem comes, I can't even properly play a game.
reformat factory reset - fail
reinstall latest miui global 11.1. 2 - fail
optimise animation all off - fail
gboard - fail
xiaomi keyboard - fail
SwiftKey - fail
turn off Miui optimization - fail
restart phone - fail
clear ram, clear cache, clear recent, speed boast - fail
CPU slowing down due to background processes?
Touch digitalizer got problem? (I tried shaking it gently, poking it but it does not affect anything at all)
As I said, this problem is intermittent. There are times when I can use it without any problems at all.
It's really weird.
It can be totally fine one moment and then it acts up again.

There's another thread about this. Most of us face this issue on all variants of the phone (Pro/Lite). This started with April or May update where Mi added a edge sensitivity control setting.
What happens here is that touch sensitivity suddenly reduces and it will be hard to do anything that involves rapid touch such as typing.
Lock and unlocking the screen or restarting the phone will fix this temporarily. There's no permanent solution.
Also when this issue occurs again, go to the settings and turn on Game Turbo for an app such as WhatsApp, without and then try typing on WhatsApp, you will see that the issue is gone.
We all are waiting for Mi to fix this. But I would advice to return the phone if it's under warranty though this is a software issue