yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] szymon247:
You guys know those results you are getting correspond to calibration, right? :P
[Nexus 4 General] ferozfero:
you know what i think the reason for lesser prs readings on taps and not in swiping is... its probably to avoid miss taps but keep swiping through the system smooth.. im jus guessing though.. overtime we may get used to slightly harder taps but enjoy the smooth scrolling...
[Nexus 4 General] MaxCarnage:
Maybe I'll get used to it but having to press firmly to use the swipe keyboard is annoying. I basically can't do it with my thumb:

I Haig gas joy can't do it err ITU my thy MBB.

That shouldn't be happening.

Sent from my phone somewhere in space
[Nexus 4 General] jameslfc5:
Lowest I got using my index finger was .49 the average was .58 though :/
[Nexus 4 General] MaxCarnage:
Lowest I got was 39 but was almost always between 55 and 60.

Sent from my phone somewhere in space
[Nexus 4 General] droidmakespwn:
I got .26
[Nexus 4 General] MaxCarnage:
Huh, it's only like that while plugged in... Wtf?

Sent from my phone somewhere in space
[Nexus 4 General] Nuu~:
Could someone with a N4 please do me a favor and quickly test something?

Download any drawing app from the market (like Draw!)

Slowly draw diagonal lines across the screen. Use normal pressure like you would if you use your device.

Are the lines straight or wavy? Post a screenshot if necessary.

I'm interested since some devices have had a lot of problems with things like this.

Here is what the result should not look like :p (remember to draw slowly and with moderate pressure)
[Nexus 4 General] :
I got as low as .28 on my Galaxy Nexus and touch responsiveness is not bad. Anything lower for the 4 would be excellent.
[Nexus 4 General] PhilipL:
Hi

As a note it isn't pressure that the screen is detecting, it doesn't work that way. The screen detects a change in capacitance when something is close to it that affects capactiance, and typically the screen is calibrated to work when the screen is touched.

Some screens are so sensitive to capacitance changes they don't need to be touched at all, just being very close to the screen with a finger is enough to register, which can be equally as annoying like my Nexus 7 which can register a button press that I wasn't making.

If the screen is adjusted (or has a hardware limitation) where it isn't so sensitive to capacitive changes, you have to press harder, however what you actually doing is by pressing harder is pushing a bigger surface of your finger onto the screen which causes a larger capacitive change and is then registered.

The question with the Nexus 4 is it less sensitive because it is set up the way, and so can be changed in software later for those that want it more sensitive, or is it a hardware limitation because the touch sensing is now built into the LCD panel, which puts it behind a layer of clear glue, which makes it harder to sense capacitive changes?

Regards

Phil
[Nexus 4 General] IIIV:
It turns out that the Nexus 4 has a "numb screen"...

[YOUTUBE]-SCJG9JMnlY[/YOUTUBE]

:rolleyes:

Edit: Check the test at 12:05 of the video.
[Nexus 4 General] Eggcake:
How about linking to the exact time, as I really don't want to watch the whole video.

Edit: At around 7:40, doesn't really show anything though.
[Nexus 4 General] 3dawg:
I ran the synaptic touch test app and everything is fine with the nexus 4. It uses a synaptic touch driver after all...

I also downloaded a random paint app and did as you asked. It seems fine to me.
[Nexus 4 General] IIIV:
At 12:05, touch screen response lags a little behind...
[Nexus 4 General] chlehqls:
I couldn't load the video on campus internet so I'll go by your word. It seems this isn't such a small issue.

I feel like I'm getting used to it just sometimes annoying is all.

Sent from my Nexus 4
[Nexus 4 General] droidmakespwn:
While I do not want to sound like I'm over defending the nexus 4 he was using chrome compared to the stock 4.1 browser and we all know chrome still has a long way to go. If he used chrome on the galaxy nexus it would be the same (most likely)
[Nexus 4 General] vizzy:
Completely off topic. Bit 0.04 on my incredible s.
[Nexus 4 General] chlehqls:
Try and punch to zoom in gallery with the nexus 4 and compare it with the galaxy nexus. I guarantee there will be a noticeable difference.

Sent from my Nexus 4
[Nexus 4 General] MuteStick:
I get around .50 - .56 the same, but I still have the plastic on mine. Sure that matters right?
[Nexus 4 General] purplet:
I had the ideos x3 and the biggest problem was the overly sensitive screen. Think about that, adding too much to a strength and it becomes a weakness.

The screen is sensitive enough, the difference with pinch is that it actualy starts from a wider finger position. If u start with the fingers further away it starts to zoom right away. That's something to get used to instead of an screen issue. I've got big hands so I talks didn't notice till I tried with my pinky
[Nexus 4 General] whittikins:
Yep that's annoying.
[Nexus 4 General] augustofretes:
This could be a deal breaker, I've also noticed an infamous amount of delay when scrolling up and down in other videos, but thought it was an isolated problem :(.

Man, this is really disappointing (not to mention the color calibration of the display is absurdly off). As good as this device (CPU wise) is I think I'll pass. I'm really bumped down.
[Nexus 4 General] chlehqls:
Funny enough I think I'm getting used to it. After using it for more than a day, the issue seems far less annoying now.

Still maybe a deal breaker for some.

Sent from my Nexus 4
[Nexus 4 General] powerdoesntrun:
My wife's RAZR M gets less than .1 with a screen protector on. Not sure why the N4 sensitivity is off.
[Nexus 4 General] ugotproblemz:
compared it to my sg2 and i def notice the difference in sensitivity.

i guess this is the reason why it felt a bit weird texting(keyboard usage)

is there anyway to increase the sensitivity? or its a hardware thing?

Thanks
[Nexus 4 General] italia0101:
Getting used to it as well. Not that bad . I don't get people moaning and the screen colours . they are more accurate than amoled
[Nexus 4 General] powerdoesntrun:
I feel like I'm actually getting less used to it now that I'm noticing that swipes and touches are not very responsive. It's like they didn't even test for this.
[Nexus 4 General] burningembers:
Welp, I couldn't deal with it anymore. It is far too noticeable, especially since I am regularly switching between my SGS3, Nexus 7, and the Nexus 4.

My friend said I was insane (we'll see what he says in a few days of use). I sold it. Here's to hoping it is remedied in the future and I'll just buy another one...or a newer/better phone comes out :)
[Nexus 4 General] italia0101:
LOL you sold it ?! because of this? this can be tweeked in a custom rom for sure,
[Nexus 4 General] mrjeffery:
Why the "LOL"? If people are having problems interacting with the screen that can completely ruin the whole experience of using the device. Plus, I personally didn't buy a nexus device to ROM it, I bought one so I wouldn't have to. This is meant to be the Android flagship model.
[Nexus 4 General] italia0101:
Hm , I loled because I think it can be fixed, also sorry but everyone knows nexus devices come with problems at the beginning ..
[Nexus 4 General] purplet:
I guess most noticed the oh so bad touch after reading it and not before. The swipe ain't unresponsive it's simply starting with a gap in between the fingers. It's been t the same with the bad battery.
[Nexus 4 General] qwahchees:
The screen lack of sensitivity is really starting to bug me, it misses basic swipes that need me to push pressure on.

My hands are moist, so swiping while it's moist is hard.
[Nexus 4 General] :
Moist. I don't like that word.

Another word I don't like is Quiche...
[Nexus 4 General] Richieboy67:
The touch sensitivity comes from the type of screen it is. It is not a malfunction but rather just the type of screen..

You may have to type a bit slower and if you do a long swipe it may take a little distance longer but I believe it is a good trade off for the amazing screen that has everything so close to the display.

You will get used to it most likely.. The point though is that it is not a malfunction or defect.

sent via xda premium with nexus 7
[Nexus 4 General] Naimand:
I can confirm that the Spigen Anti Oil screen protector does, in fact, take the sensitivity away from the touch screen.
[Nexus 4 General] Mindfield21:
I was trying this test to a galaxy note 2 and I was costantly getting 1.0 :confused:

The screen sensitivity felt ok though,
[Nexus 4 General] arcanixX:
This is not placebo! I'm having the exact same problem, which is actually why I came here. It was pretty fast to write in my xperia S and now I have to type slow and harder to don't miss keys. I really hope it can be fixed since mostly I do with my phone is write A LOT and fast.
[Nexus 4 General] yahoowizard:
My Prs? I can't get under .45. However, I didn't notice anything until this was brought up, but even then, I still don't notice much.
[Nexus 4 General] Maroon Mushroom:
I've definitely heard of issues with the touch layer being integrated into the LCD.

Same touch sensitivity issues that the iphone 5 is having
[Nexus 4 General] USSENTERNCC1701E:
I had some touchscreen sensitivity issues, not too bad, but noticeable. And today, I go to unlock me screen, took like 5 tries, had to go real slow and roll my finger from one dot to the next. Turns out a strip right across the center of the screen is completely non responsive D: Contacted CSR, will be getting a replacement, but I have to wait till payday so they can lock out the price of a phone between sending me a new one and receiving my current one :'(
[Nexus 4 General] mrjeffery:
Please star this issue if you're experiencing it:

https://code.google.com/p/android/issues/detail?id=40445&thanks=40445&ts=1353961111
[Nexus 4 General] Richieboy67:
I thought this was a hardware issue due to the type of screen it is? Why is this list being cultivated in Android support?

If it was an android issue wouldn't all devices running this version be having the issue?

The bottom line is if you are coming from a capacitive touch screen it will take time to get used to this screen. Still it looks much better and more accurate and everything is displayed right there. I think it is a decent trade off but not for all.

Still I am not sure posting the issue to the Android support page is going to do anything besides waste the time of a dev who could be working on more improvements to Android.

Just my opinion and maybe this forum is also for hardware. I did not think so though.

sent via xda premium with nexus 7 while waiting for my back ordered Nexus 4!
[Nexus 4 General] Muvolt:
I would say "It might be tweaked". Never buy a product for the things it could be able after further development/updates... that's a huge mistake IMO.
[Nexus 4 General] Leandros_Ger:
I have the same issue, can't get below .32.

I want the sensivity of my Galaxy Nexus on my Nexus 4!
[Nexus 4 General] reddv1:
It could be either a hardware or software issue or it could be a combination of both. Hopefully it's partly a software issue so touch sensitivity could be improved in the future.

I agree it isn't an issue related to the Android OS because as you mentioned, it would affect all devices on 4.2. But the problem is, where can we report this issue to make it known to Google, LG or Synaptic, whoever is responsible for the touchscreen drivers.
[Nexus 4 General] italia0101:
I just updated to 4.1.2 and ... this could just be a placebo, or im just getting used to it, but it seems more responsive
[Nexus 4 General] Richieboy67:
First off I know just as much about as you, actually more.

Secondly, I am not an idiot and your comment about the internet etc treats me as one. I do not appreciate it and I will not put up with snobby condescending, stupid remarks.

With regards to this issue, I have researched this heavily before I even placed my order. Whether or not I have the device has nothing to do with facts and research. If you feel I cannot contribute than please feel free to ignore my input because I am in no mood for remarks like yours.

And for your information I have used devices with this type of screen and I am familiar with it. It is a big change to go from a gs to a device with a touch screen like this.

And I still believe this is a well known property of this screen. It is not Android related there for it should not be posted on the Android forum. Perhaps you should do more research.

sent via xda premium with nexus 7 while waiting for my back ordered Nexus 4!
[Nexus 4 General] USSENTERNCC1701E:
Capacitance occurs between any two separated conductors with a potential difference between them. Capacitive touch screen measure this capacitance to determine touch location. If you touch a capacitive sensor with an insulator, there will be no capacitance, and no touch will register. To demonstrate this, you can take something like a pencil eraser, it won't register. Then take a battery and try the same thing. Something else you may note, one end of the battery may be more responsive than the other (generally the negative terminal). You may have to lick the battery (changes the permittivity of the space) to get it to register (especially with this screen), but short of charging the eraser (a difficult task) you cannot get it to register at all.

So, yes, this is in fact a capacitive touch screen.
[Nexus 4 General] teddat:
did you retry the PRS test? is it any better?
[Nexus 4 General] heymil:
htc hd2

Getting a constant 1.0 on my htc HD2 (tytungs android 4.0). n4 scores doesnt seem that bad in comparison :P
[Nexus 4 General] 3dawg:
Constant 1.0 on my S3. As I said earlier, PRS readings are total bull****.
[Nexus 4 General] ppeklak:
I get this also on the same phone.

iPhone 5 users are also saying they have touch screen issues with the same screen technology (1 layer instead of 2):
[Nexus 4 General] XpLoDWilD:
Are you guys aware that prs value is device-specific, and can be scaled in a configuration file, and is only relevant on input devices like galaxy note pen pressure sensitive screen?

I can make my nexus display 0.01 PRS if i want, one line to change in IDC file...
[Nexus 4 General] guest_2011:
no problems here when plugged in to pc usb or charging from AC. I get 0.27 and sensitivity for me is very good, still have the protective film in from and back until i get kevlar protectors.
[Nexus 4 General] ste1164:
No problem on my iPhone.
[Nexus 4 General] Spitfire:
Just got my phone, doesn't register light fingernail tap. Lightest press I got was 56, mostly 60. My Gnex is consistently 28 with the nail tap.
[Nexus 4 General] robollama:
Regardless the nexus has a sensitivity issue.
[Nexus 4 General] manlisten:
Only annoyance for me is there seems to be a delay with pinch zooming.
[Nexus 4 General] italia0101:
Try firefox
[Nexus 4 General] itpromike:
This is actually a deal breaker for me. Coming from the iPhone 5 it made the device feel literally broken when I played with it in the store so I chalked it up to a faulty abused store unit and took to the forums to confirm (or deny) if this was an actual issue and sure enough on different sites there are threads after threads of people unhappy with this so it's making me think twice about this device. This issue is even more magnified with pinch to zoom operations. In my testing it made google maps bloody unusable because I had to pinch or zoom 3,4, even 5 times to get to the zoom level of 1 pinch to zoom operation with the phone next to it (the One X).
[Nexus 4 General] deepstate:
I hope screen sensitivity is a software issue which can be fixed. Found this interesting: http://www.youtube.com/watch?v=WwCdNxDZwe0
[Nexus 4 General] JohnMiroki:
Nexus 4 .56 vs Gnex .28
[Nexus 4 General] jay_993:
You guys are sweatin too much. Tried one in shop and its more than fine.
[Nexus 4 General] noobdeagle:
so ive noticed it takes a value about ~.40 to trigger the touch screen then you can get it much lower ~.20 after the inital touch. having said that i always found that my S3 was too sensitive and i would often accidently tap on things i didnt want to i find this does not happen with the nexus 4; i reckon the heavier touch is better and it never causes missed inputs most taps for me are at least ~.60.

this hardly seems like a problem with the devices and has ZERO impact on everyday operations.
[Nexus 4 General] kerman19:
The iPhone 5 was far from perfect, I ultimately gave up on mine because the edges were completely unresponsive, presumably due to that annoying palm detection added for the iPad mini. F'd me right off!

Pinch to zoom on my Nexus 4, (which doesn't seem as sensitive as other Android devices) is actually perfectly acceptable to me. Perhaps it's because I've adapted to the sensitivity? All I can say is it's no way near as bad as people seem to make out that it is.

Phil
[Nexus 4 General] itpromike:
Never said the iPhone 5 was perfect but it has been the most responsive and accurate touch device I've ever owned and I've owned many phones (every iPhone, 5 Android phones, and 1 WP7 phone). Never noticed the edge sensitivity thing though... Also I'm not relying on what other people are making it out to be, I've used one for at least an hour and it was unbearably annoying and frustrating in such a way the device seemed broken. Especially in Chrome and Maps which are pinch to zoom heavily laden applications. It's making think of getting an S3 but I hate the blue screens and the thought of never getting updates on time so I'm kind of stuck. :-/
[Nexus 4 General] biffsmash:
Screen sensitivity is fine on this phone in fact I think it's perfect. Haven't had one issue with pinch to zoom on the phone either, in maps or anything else.

It's rich complaining about pinch to zoom on Google maps from an iPhone user when apple maps and in fact the iPhone 5 itself are hardly amazing.

People need to realise that the only fault with this phone is the price. It's far too low and can't seem to work out why ;-p
[Nexus 4 General] Richieboy67:
Fine for me as well. Before I got the phone I was expecting it to be really bad from all the it posts. I have no issues at all with sensitivity.

It think many times people have no issue until they read a test number or something. Hopefully everyone now knows those sensitivity test apps are for capacitive touch screens.. not the ones we have.

sent via xda premium with nexus 7 while waiting for my shiny new Nexus 4!
[Nexus 4 General] @rbiter:
I see videos and part of the problem is starting fingers too close together. I am guessing perhaps the digitizer sees two fingers close together as one input and doesn't register pinch to zoom until the fingers are further apart. I pinch to zoom with one finger stationary and don't have any problems. And yes you can go do the PRS thing and see two fingers register when close together but I think the punch to zoom is probably programmed to act a certain way when fingers are too close.
[Nexus 4 General] robollama:
I definitely noticed the problem prior to reading anything at all about it. I ordered my nexus day one and none of the pre reviews mentioned it. From the first day I had trouble with the phone not registering taps
[Nexus 4 General] js2021:
.29 lowest. I'm coming from the s3 I feel no difference.
[Nexus 4 General] Cheesethief:
The Nexus 4 has a capacitive touch screen. Resistive is the other technology. Please use Google or Wikipedia sometimes. :p
[Nexus 4 General] erikiksaz:
I'm starting to get used to the insensitive touch, but it's still not that great. Heavy handed people won't have much of an issue.
[Nexus 4 General] TheSimpleSimon:
I think I might have good news. I'm 99% sure it's only software related because when I use a touch recovery it registers the lightest of touches with the tip of my finger. Something that it does not do well in the operating system. Look like someone should be able to fix it.
[Nexus 4 General] iTeeXDA:
Couldn't go lower than 0.51.

Don't really feel a difference though.
[Nexus 4 General] mrjeffery:
Yes, as stated earlier the reason for the thread was to compare readings of different Nexus 4's and confirm they were within a similar range.
[Nexus 4 General] :
Lowest value was 0.50 with factory screenprotector om the screen.

In my opinion it is sensitive enough.
[Nexus 4 General] 3dawg:
Which touch recovery? On CWM touch it behaves exactly as it does when booted up.
[Nexus 4 General] osi13:
This needs to be fixed as soon as possible. I picked up my Galaxy Nexus earlier today, and sent a few SMS messages. I noticed immediately that it's much easier to type on the Gnex. Also, The issue does not seem to be as pronounced in Firefox, IMO.
[Nexus 4 General] onthecouchagain:
Is it me or is the Nexus 4's touch points a little smaller? I feel like I have to be more accurate with my presses. I find myself missing the home button sometimes.

Am I the only one that feels the touch points are smaller?
[Nexus 4 General] jargafan:
The good news is that the touchscreen firmware seems to be upgradeable. You can

$ cat /sys/devices/virtual/input/lge_touch/fw_ver

to see your firmware version. My Nexus 4 has E027, from about 8 weeks ago, which fixed some 'ghost touch' issues:

android.googlesource.com/kernel/msm/+/2f2979bed80125daa9bd6e3adc1d4ac11fdd8ca7

The fix probably had the side effect of reducing the touchscreen sensitivity. The driver supports hot firmware upgrades, though it looks like the device would need to be rooted first:

android.googlesource.com/kernel/msm/+/e039dcb2ebcf3afcfc133caefb60a6836f437a63/drivers/input/touchscreen/lge_touch_core.c

So there's hope!
[Nexus 4 General] phatpaw:
I'm having issues hitting the settings/menu button in the lower right corner of the apps that have it. I feel like I have to presss several times to finally get it, and sometimes I just end up hitting the 'recent apps' instead. I'm talking about the vertical 3 dot button. Not sure if its my phone or just a general problem.
[Nexus 4 General] Mr.Kakarot:
is there a way to test the screen for the flaws I been reading about?! or is it all devices based of the sensitivity levels?!

Thx

I did that test and it was brutal.. averaged high 50... and I could press light enough to not register....
[Nexus 4 General] reddv1:
You might have a dead spot in that area and not just low sensitivity. You can use the same PRS test and scribble in that area and see if there are lines being drawn in that area. If not you might want to return the phone.
[Nexus 4 General] TheSimpleSimon:
One thing I've noticed is that although it doesn't notice small taps with the tip of your finger, you can swipe very lightly with the tip of your finger. Surely this means it's software and is set to need more skin on the screen for tapping and not on swiping. If it was the hardware it wouldn't be picking up the tip of the finger when swiping.
[Nexus 4 General] phatpaw:
Thanks, you are absolutely correct. It's about .5 inch wide and .75 inch high dead spot in the bottom right corner.

Bummer.
[Nexus 4 General] guest_2011:
When plugged into usb screen is not as responsive as when when unplugged.
[Nexus 4 General] MiG123:
Wow this is rally sh1t, I'm used to getting 0.01 on my s3 and galaxy nexus.
[Nexus 4 General] TheSimpleSimon:
We should stop comparing those numbers between different devices. You can change the Nexus 4 number to 0.01 if you edit some settings but it doesn't change the screen. We should be only comparing Nexus 4s because they have the same settings and we can see if everybody's Nexus 4s are the same or is it just a few who have less sensitive screens.
[Nexus 4 General] mrjeffery:
Very promising, thanks for this :)
[Nexus 4 General] quack3d:
code.google.com/p/android/issues/detail?id=40445

Check out the bottom here. The guy figured out how to downgrade the firmware.
[Nexus 4 General] aluxzen:
have the same feeling on mine N4, PRS between 0.55 and 0.6

In the real life, I often need to retouch the area where I want an action, my GN was really more confortable to use than the N4, I hope something can arrange the thing in a near futur

Alex
[Nexus 4 General] FatalityBoyZahy:
Google will probably address this issue in the near future.