[Q] slow scrolling is choppy, digitizer issue? - Nexus 7 Q&A, Help & Troubleshooting

Hello!
This doesn't seem to be mentioned anywhere, I've noticed since day one that when I'm scrolling really slow, e.g. between homescreens, in the twitter app or browser or anywhere, it is choppy and moves several pixels each step giving a jerky feel to it. Today I connected a mouse via USBOTG to see if it was the same but it's a huge difference and scrolling really slow is 100% smooth. So my conclusion is that it must be related to the digitizer. Can it be a driver issue or is the digitizer defective? When doing normal fast sweeps it's as smooth as project butter should be, but in a lot of situations you do slow scrolling, and it doesn't look nice. Someone might say this is nothing, but I'm picky with things like this, I hate jitter. Any ideas?

I have that issue as well, it does not happen all the time but when it does i get annoyed, stock rom, and kernel. i just closed my setting and it was butter smooth again.

Vedrick said:
I have that issue as well, it does not happen all the time but when it does i get annoyed, stock rom, and kernel. i just closed my setting and it was butter smooth again.
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stock here as well. but for me it is constant, but only when scrolling really slow. It's like every step moves icons, text and whatnot about 5-10 pixels instead of 1. I haven't tried a factory reset yet.

While it was choppy, I checked all running services, syncing application, removed widgets and nothing worked. Very odd.......

yes very odd. do you have the time to install this app?
https://play.google.com/store/apps/...SwxLDEsIm9yZy5waWVycmUuaW5wdXRiZW5jaG1hcmsiXQ..
it's an app to measure touch input values. click on "Touch" and see what your average touch frequency is when moving your finger really slow. On mine it is around 8-10 Hz, and around 60 Hz when moving in normal speed. I have never owned a tablet before so I don't know if this is normal, but maybe it is. But I guess this is what causes the jerky feel when scrolling slowly, because of the frequency getting so low. Maybe that's how digitizers work.
Edit: I couldn't test this on my galaxy SIII yesterday as it was drained but today I did and I don't get lower than 25 Hz when scrolling as slow as I can, and on my SIII it isn't at all jerky.

Related

Internet Explorer extremley slow and clunky.

Sure zooming and scrolling is much smoother than android's stock browser, but the loading webpages for me takes much longer, and words are always blurry when i zoom in, whereas android is zippy and sites load MUCH faster. What can i do to fix this, and is anyone else having this problem?
Its very fast on my phone and much, much faster than my HTC Desire android phone. The scrolling is butter smooth, however due to the HD2 touchscreen driver the multi touch doesnt work well on wp7 but that is not an issue with the OS as it's fine on my 7Mozart.
Not sure what to tell you. IE on WP7 is MUCH faster for me, than surfing was on Android. And I don't get the blurry words when zoomed in, maybe luck of the draw, due to this not being a native os to our phone. Wish I had a solution to help you, but thought I'd let you know how mine runs so you'd get a better idea if it's os related or phone related, or something else.
yeah, mine is fine as well!
the touch screen bug is a bit dodgy but not to hard to work with
make sure if you are using two finges you hit the screen at exactly the same time with both fingers, also if a swipe dosnt work first time, try the exact opersite then do it again, that usually gets me going
as for your speed issue, perhaps its a network issue, do you have the same issue on wifi?
or perhaps its even another SD card issue...theres plenty of them if the card is only slighty duff so it could well be that if you have issues with wifi as well.

Jittery touch?

This morning I noticed that my touchscreen has become very jittery all by itself.
How do I begin to debug it?
I use ezpdf to read pdf, but since this morning it has become nigh impossible to read and scroll.
It's easily seen in the notes app. Can't draw a straight line no more.
Any suggestions?
Seems it was juice defender.
Weird.
Though tracking seems smoother in winMo even so.
Tips to make it even smoother?

Touchscreen sensitivity

Been using the 2nd gen Moto G for a week and I've noticed the touch screen isn't as sensitive/accurate as my previous phone (NEXUS 4). For example, when I scroll (in Facebook, Chrome etc.), the app opens links and images if my thumb is over either one. It's the same with gallery. If I were to scroll then halt, it'll open the image under my thumb. It's doesn't happen often, but enough to take notice. I have to press slightly harder (compared the NEXUS 4) for the Moto's touch screen to register accurately. Can't use light touches reliably at all. Has anyone experienced similar/same issue?
Not an issue with me like this
Works fine
It is by no means bad, but it takes a little bit of getting used to. I'm guessing they'll fix it via OTA if it needs fixing.
I have noticed the same thing. I am also coming from nexus 4. I find these touch issues very irritating. Overall scrolling isn't as smooth as the n4 as well. I think scrolling could be related to the kernel configuration.
anshumandash said:
I have noticed the same thing. I am also coming from nexus 4. I find these touch issues very irritating. Overall scrolling isn't as smooth as the n4 as well. I think scrolling could be related to the kernel configuration.
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Glad I ain't the only one. Hopefully it is software related and can be addressed via update
I have this only when I charge my phone with a specific wall adapter, everything else is fine
Gabboplano said:
I have this only when I charge my phone with a specific wall adapter, everything else is fine
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Strange, I didn't notice this issue before yesterday's OTA.
Will try other another wall adapter.
I'm currently using the Sony/Ericsson LwW adapter (5V/800mA).
My Moto G 2nd Gen had this issue too, but it also had problems where occasionally the touch screen would interpret scrolling as tapping and vice versa, in the end, I had to RMA it.
I had mentioned earlier that sometime scrolling would consider as tapping and would open apps/links etc. Some time tapping needed multiple taps. I just removed the screen guard and this problem is mostly not noticeable any more. Just thought this information might help some one.
My phone came with the official charger of 550 MA and I don't get any screen freezing while the phone is charging with it.
Okay, i had this problem too. However i got the phone replaced so now i'm using a different handset and the issue is resolved for me. At first even i thought that this is the problem related to the software but i started to notice this over and over again. So i spoke to flipkart and they agreed to replace the handset. So i suggest to all the people who are having this problem to get your phone replaced.
Sent from my Nexus 5
sahil kaul said:
Okay, i had this problem too. However i got the phone replaced so now i'm using a different handset and the issue is resolved for me. At first even i thought that this is the problem related to the software but i started to notice this over and over again. So i spoke to flipkart and they agreed to replace the handset. So i suggest to all the people who are having this problem to get your phone replaced.
Sent from my Nexus 5
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Did you have the problem even without a screen guard? After I removed the screen guard, I get this tap while scrolling may be only once a day. Normal sensitivity is far better without a screen guard.
anshumandash said:
Did you have the problem even without a screen guard? After I removed the screen guard, I get this tap while scrolling may be only once a day. Normal sensitivity is far better without a screen guard.
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As soon as i got the phone, i booted it up with the screen guard on that's when i first realise that there is a problem with the scrolling and tapping on the touch screen. I removed the screen guard immediately and even after that the scrolling was mistaken for tapping. Used it for a few days and still had the issue. It did not happen very often if I compare it with the screen on time, but it was enough for me to be pissed at. I would rate it at about 30 % of the time when im scrolling, sometimes in a music playlist or when i am browsing or scrolling just about anything.
Sent from my Nexus 5
sahil kaul said:
As soon as i got the phone, i booted it up with the screen guard on that's when i first realise that there is a problem with the scrolling and tapping on the touch screen. I removed the screen guard immediately and even after that the scrolling was mistaken for tapping. Used it for a few days and still had the issue. It did not happen very often if I compare it with the screen on time, but it was enough for me to be pissed at. I would rate it at about 30 % of the time when im scrolling, sometimes in a music playlist or when i am browsing or scrolling just about anything.
Sent from my Nexus 5
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I have another question. In the new phone do you see any stuttering or jitter while scrolling through apps. It harkens to me in many apps even on g+, scrolling through contacts, Facebook, Tapatalk etc. I know this could be software related. But just wanted to check with you. Now the tapping during scrolling issue happens really less, but it happens if the scrolling is jittery.
delete please
anshumandash said:
I have another question. In the new phone do you see any stuttering or jitter while scrolling through apps. It harkens to me in many apps even on g+, scrolling through contacts, Facebook, Tapatalk etc. I know this could be software related. But just wanted to check with you. Now the tapping during scrolling issue happens really less, but it happens if the scrolling is jittery.
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I have a feeling that is also to blame. I've noticed it when using FB, Chrome etc.
The surface of the glass may also be one of the culprits. My thumb and fingers don't glide as well on the Moto compared to my NEXUS 4. Sometimes I have to apply bit more pressure to keep my thumb firmly on the screen. Otherwise I can feel it loosing contact. It's very obvious after cleaning the screen with soft cloth. Maybe it is to do with the coating? I've ran touch screen tests and the screen detects inputs just fine. I don't see the point of returning mine, cos they won't find anything wrong with it.
PS: Android L should drastically reduce or eliminate stutters (and lag) thanks to Android Run Time (ART). People are already seeing major improvements, but I don't recommend enabling it in KitKat. It's can screw up your phone and apps. But if you wanna take the risk, click on ART Under "Select Runtime" option in developer options.
touch sensitivity
this problem appeared once, after an update from motorola.
Factory resetting it solved the problem xd
Nielo TM said:
I have a feeling that is also to blame. I've noticed it when using FB, Chrome etc.
The surface of the glass may also be one of the culprits. My thumb and fingers don't glide as well on the Moto compared to my NEXUS 4. Sometimes I have to apply bit more pressure to keep my thumb firmly on the screen. Otherwise I can feel it loosing contact. It's very obvious after cleaning the screen with soft cloth. Maybe it is to do with the coating? I've ran touch screen tests and the screen detects inputs just fine. I don't see the point of returning mine, cos they won't find anything wrong with it.
PS: Android L should drastically reduce or eliminate stutters (and lag) thanks to Android Run Time (ART). People are already seeing major improvements, but I don't recommend enabling it in KitKat. It's can screw up your phone and apps. But if you wanna take the risk, click on ART Under "Select Runtime" option in developer options.
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I completely agree with you. This phone has got two coatings. One called splash resistant and the the other is finger print resistant coating. I think those are another cause the finger doesn't glide well on the screen. I am also coming from Nexus 4 and I can feel this problem every time as I still carry the N4 with me. I too ran touch screen tests and everything looks fine. I am not sure if I RMA how will the 2nd device behave. It might be same. I can actually replace it from Flipkart.com from where I bought, but I am not sure if that will help.
I read some review comparison between the new moto g and new moto x and the reviewer has commented that Moto x 2014 screen is far more responsive than the moto g 2014. I know the problem was real bad with the stock screen guard on the screen. If I need to manage with the phone, I know I will have to use the phone without a screen guard.
I tried using ART as I have been using that on my N4 since Jan 2014. But in Moto g the app optimization starts at every boot with ART taking more than 10 mins for every boot. I wrote a mail to Moto support and they said there is a technical problem with the builds and they suggested me to use Dalvik. I think they won't fix it till Android L drops in.

Slow finger scroll issue

Guys, this might be a solution to the jittery slow finger scrolling that seems to be plaguing “some” PH1 devices.
Before I get flamed, please note I’m genuinely trying to help out this community. I don’t own an essential phone but i’d like to. I own a oneplus 3 and recently experienced exactly the same slow finger scroll jitteryness even though flick scrolling was pure butter. This began to happen on my device all of a sudden and I tried everything (and I mean EVERYTHING!) to get to the bottom of why normal scrolling lists etc was totally smooth but if you dragged your finger slowly to scroll it was horribly jittery or juddery. I even tried different kernels, GPU Rendering toggling etc etc etc. I finally got my slow finger scrolling back to being buttery smoooth again purely by chance.
I removed 2 apps that I had set “on” in accessibility settings. BAM! Slow scrolling changed immediately from horrible to smooth. Now I dont know if it was having both apps enabled in Accessibility settings or just one but I dont really care. All I know is that my phone responded immediately on making this change, no need for a reboot. Why did this make my phone slow scrolling lag? I’ve no idea. But, just to double check it was this I re-enabled the 2 apps in Accessibility settings and guess what, normal scrolling stayed buttery smooth but slow finger scrolling changed back to lumpy, jittery, almost like the text was vibrating as it scrolled on the screen.
I know some of you will think “WTF!” and so did I on discovering this. Why would this innocuous setting make a difference to scrolling???
Anyway, give this a try. I know my phone is different to yours but the way my phone went was exactly like the scrolling on the essential phone in the youtube videos floating around. Horrible!! Afterwards, my scrolling is back to pure butter in all scenarios.
I hope this solves the issue for you guys. Good luck and let me know if this works for you
p.s. just to be clear, my 2 apps were Nova launcher and Caller Name Talker. Setting both these to “off” did the trick for me. In your case I’d advise setting ANY apps you have “on” in Accessibility settings to “off”. If it doesn’t work immediately, try a reboot although my Oneplus 3 didn’t need a reboot :good:
Thanks for the tips!! Unfortunately I currently have Nova Launcher set to "off" in the accessibility settings and don't have the other app you're talking about. I still have the stutter
Good thing is, Essential said they do have a fix for it and will push it out in the next OTA this month
flakko86 said:
Thanks for the tips!! Unfortunately I currently have Nova Launcher set to "off" in the accessibility settings and don't have the other app you're talking about. I still have the stutter
Good thing is, Essential said they do have a fix for it and will push it out in the next OTA this month
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Well if they do manage to fix this issue then I will definitely buy one. Providing of course that they sort out any early batch quality control issues too. This is without doubt the most beautiful phone ever created.
Camera quality is not important to me but smoothness is my thing. Thats why I don’t buy Samsung/HTC/LG anymore. I’ve seen my brothers s7 edge and it’s a disgraceful stutter/lagfest compared to my Oneplus 3. I got fed up of trying to hone laggy “flagship” phones to be smoother years ago. Pure android or as close to it now for me.
Only totally smooth phones I’ve ever known are Nexus, Oneplus and Pixel phones. My current Oneplus 3 is the smoothest android experience Ive ever had upto now and although I was looking to upgrade in 2017 to something with a SD835 chip, nothing apart from Essential phone has perked my interest so far.
Good to know there's an OTA coming. Mine seems worse when I'm plugged in charging. Scrolling twitter it will freeze, then sometimes it jumps around opening links I never clicked on.
Also, anyone have trouble registering presses on the edge of phone? Any settings in the top right take about 4 or 5 presses to open.
The official fix is coming. Essential received a fix from Qualcomm and it will be included in Octobers second update, it also includes latest security patch

Randomly low performance?

Hey I just got my Z4. Upgraded from a Z2 Play. I bought direct from Motorola off their website. I'm having really strange 2D performance issues, and was wondering if anyone else is having similar issues because they seem outright stupid for a phone as beefy as this one is to be doing this.
OK, so, this is going to sound super vague because I did try to nail it down with a ctrace, but wasn't able to come up with anything conclusive.
Sometimes, when drawing 2D only, my phone will drop to 30fps or lower. This happens in both in the launcher/normal apps and games (Fire Emblem Heroes)
However, when the phone is drawing in 3D (Dragalia Lost) the phone never drops below 60fps, ever, for any reason.
I have tried the developer option to force 2D Drawing on the GPU. This does not change the behavior at all.
This happens regardless of what MotoMod I have attached (None, Car Dock, Projector, 360 Camera)
This seems really weird to me. The phone isn't getting hot. It happens both plugged in and unplugged. Fresh reboots and not. What's interesting about this is it's exactly the opposite of my Z2 Play, which Dragalia F***ing hated (It would run fine for anywhere from 5 to 30 minutes, and then it would crash) but FEH would run fine on, and never ever have issues, ever, even if the phone hadn't been rebooted in like, 3 months. And the Z2 Play is just generally a weaker, crappier device in every way (Except Ram, I had the 64gb/4gb model of the Z2 Play) than the Z4, I kind of "expect" the Z4 to just do everything the Z2 did but better.
I'm not a particularly heavy user (I upgraded from my Z2 Play because the battery was expanding, not because it was insufficient) and both of the games mentioned are the only things I do on my phone that could be considered to "Push" the phone in any way (Push in quotes because Dragalia and FEH are both REALLY light games.)
Has anyone else noticed any strangeness like this?
I have the same issue, and yes, it's really hard to describe and difficult to determine what causes it.
What it actually looks like to me is that the digitizer randomly goes into a powersaving mode and samples input at a lower frequency. When scrolling through any app, if you hold your finger down, it'll make it look like it's running at 30fps or less. But if you fling a page that can scroll, for the most part the scrolling animation will be full 60fps.
I know for certain that if you reboot the phone, you're more likely to trigger it soon after boot. But, if you suffer through the agonizing experience, the phone will eventually fix itself for the next week or so before it happens again.
Here's the weird part, not everyone is affected by the weird performance. My theory is most people can't detect it or don't care, or there's a particular app that is prompting the digitizer to behave badly. No idea what it is though.
damentz said:
I have the same issue, and yes, it's really hard to describe and difficult to determine what causes it.
What it actually looks like to me is that the digitizer randomly goes into a powersaving mode and samples input at a lower frequency. When scrolling through any app, if you hold your finger down, it'll make it look like it's running at 30fps or less. But if you fling a page that can scroll, for the most part the scrolling animation will be full 60fps.
I know for certain that if you reboot the phone, you're more likely to trigger it soon after boot. But, if you suffer through the agonizing experience, the phone will eventually fix itself for the next week or so before it happens again.
Here's the weird part, not everyone is affected by the weird performance. My theory is most people can't detect it or don't care, or there's a particular app that is prompting the digitizer to behave badly. No idea what it is though.
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It's definitely not the digitizer though! I have some data! Fire Emblem Heroes has an autobattle mode, This is as likely to happen during an autobattle when I am providing no input (Phone sitting on desk/just watching while holding) as it is when I'm scrolling through my list of apps.
Same problem here, pretty sluggish experience compared to my girlfriend's G7 Plus.
I've noticed that since the latest update, this issue has gone away for me. Anyone else confirm?
I don't think it was the update, but certain apps seem to exaggerate performance issues. I fixed mine by marking Pokemon Go (the only 3d game I play), as "Restricted" under battery usage settings.
I've been testing this configuration for about 2 days now and it looks like that solved it.
Just to set the record straight, the Android 10 update fixed the random performance problems that have plagued the device so far. There is some hitching right after a reboot, but if you let the phone settle, it's fine until the next reboot.

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