Jittery touch? - HD2 Android Q&A, Help & Troubleshooting and Genera

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?

Related

Anyone else Got Touch Lag?

Firstly hello to all my fellow Vega UK users!
For the price I think this device is great, but it does have it's issues.
Do any of you have the problem where the touch screen just seems to stop working? It'll kick in again soon enough, but it's frustrating as hell.
Also sometimes the task manager seems to appear by itself, but I can;t get it to appear when I need it?
I'm using Pauls Add-on ROM. (thanks Paul )
Logicalstep
I havn't had any major lag at all.
What do you mean by task manager? do you mean the one when you hold "home"?
I have found after a lot of use, with a lot of apps open that the system can lag. I guess this is due to system resources. Recommend installing ES Task Manager from the market to manage running tasks.
You mentioned the task manager appears by its self, do you mean the home screen selector? I found hitting the home button to many times makes this display.
Some users have reported issues with the touch system when the tablet is charging. Do these issues only appear when plugged in?
adfrad said:
Some users have reported issues with the touch system when the tablet is charging. Do these issues only appear when plugged in?
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Yes believe so. due to non regulated power supply causes the screen to become over sensitive.
I get this issue too occasionally, vastly increased when plugged in, now and then when not.
I dont use the machine when its charging.
No real rhyme or reason to it occouring in my experience, id love to know of a cause, other than dirty screen.
Rgds
Lok
Yeah It's a bit of a strange one tbh.
Can;t say I have noticed the lag more when plugged in. I though the PSU was regulated, isn't it just a standard Switch mode PSU?
On the task manager, well obviously there is a task manager with Foryo and oon my Galaxy s I hold the hold button down and it appears, however there doesn;t appear to be a reliable way to do this on the Vega....or am I wrong?
Logicalstep
I never get any touch lag, but I'm not convinced "lag" is the word you want.
"lag" would indicate that the response is somewhat behind the touch action. Android versions below Gingerbread do suffer from that when the CPU is loaded but the Vega is better then most in that regard.
What it does suffer from a _lot_ it erroneous and missing touch events (especially when using a poorly smoothed PSU like the one provided) symptoms include:
1. Swipe gestures being terminated before you lift your finger.
2. Long press actions acting like multiple-presses.
3. (The most common for me) Finger up events failing to register (resulting is erroneous long-presses)
But none of these are "lag". I believe there are grounding problems in the Vega and thus how you hold the tablet and the humidity and static of the environment can change the reliability of the touch screen. It's been reported that having the Vega plugged into a desktop via USB increases the reliability of the display (at least when also charging) which lends credence to the idea that it's grounding related.
What I have noticed ín particular is that holding the tablet in landscape mode makes the keyboard ultra inaccurate. You must press much below the level you want. E.g., if you want to write a Q you hit the A key. It's a bit bothersome while writing...
I haven't experienced any lag, just a slight deadzone at the bottom of the screen and inaccurate keyboard typing. Nothing major. I also haven't really noticed the messed up screen sensitivity when charging that people have been going on about.
Sent from my HTC Desire using Tapatalk
CalumD said:
I haven't experienced any lag, just a slight deadzone at the bottom of the screen and inaccurate keyboard typing. Nothing major. I also haven't really noticed the messed up screen sensitivity when charging that people have been going on about.
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Try this out:
http://android.modaco.com/content/advent-vega-vega-modaco-com/327198/screen-calibration-app/
HunteronX said:
Try this out:
http://android.modaco.com/content/advent-vega-vega-modaco-com/327198/screen-calibration-app/
Click to expand...
Click to collapse
I gave if a try, seems to have made typing on the Vega a whole lot better!
Sent from my HTC Desire using Tapatalk
Confirmed over at modaco and by myself also.
Not 100pc improvement but a 90pc. Another essential app.
Goodstuff.
Rgds
Lok
Iv seen lag when I first turn it on but it goes away in couple of minutes, if its on standby it never lags.... cmon honeycomb!!!!
Sent from my HTC Desire using XDA App
The performance pack really reduces start up lag issues btw.
I've seen the device lag sometimes but since i installed pauls peformance pack the lag has gone away making the device so much better.
Well for me the keyboard is still a major issue. Not lag really, but it appears to register my touches multiple times. Right now Im typing this reply on my tablet and I have to go back so many times to correct multiple characters, spaces etc. Its just taking so long and requires so much effort to write a simple message.. for browsing and apps I love it but for email its horrible..
dopeh said:
Well for me the keyboard is still a major issue. Not lag really, but it appears to register my touches multiple times. Right now Im typing this reply on my tablet and I have to go back so many times to correct multiple characters, spaces etc. Its just taking so long and requires so much effort to write a simple message.. for browsing and apps I love it but for email its horrible..
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Click to collapse
Have you tried cleaning your screen and then using the calibration program posted on modaco?
zzleezz said:
Have you tried cleaning your screen and then using the calibration program posted on modaco?
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Click to collapse
Just tried it but doesn't seem to make any difference..
dopeh said:
Just tried it but doesn't seem to make any difference..
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Click to collapse
OK just to be sure...
Is the power supply plugged in? (Screws up the calibration in my experience)
Are you touching the screen while it calibrates?

Instore Demo's display has artifacts opening apps and jerky scrolling, pinch zooming

I have been on the fence for this ever since it has been out. I have been to bestbuy and verizon to test out the demo units multiple times and both units seem to have the same issue.
When I open some apps, say dolphin hd for example, I can see screen artifacts for a second. Like colored dashes of varying lengths, and this seems to happen often.
Second, when I am trying to pinch and zoom or scroll in Dolphin, it jerky and spastic, there was one other app that did this as well but I can remember which one. The scrolling on the stock browser seems ok but not the best.
Anyway, do any of you see this? More than likely a software fix, but hey, you never know.
And a rant, who on earth thought of that flimsy power adapter, good grief, they were both broken and the two stores when I first went to look but have since been replaced. And the power button? I have to turn it over to find it.....
Rant off and hoping to fall of the fence.....
Matt
The power button is actually placed well I think. It's not in the way and not hard to get to. I rarely have my device on a table cause of the viewing so it's not a hassle. Also I have not experienced that with dolphin HD on my device.
It's a Dolphin HD problem.
The stock browser rocks.
I haven't noticed any screen artifacts on my display whatsoever. For the most part I disregard demo displays in any store, as you have thousands of people with their hands all over it and the mentality of "Its not mine, what do I care?". God only knows what was done to the demo units.
I have not used Dolphin HD browser at all, so I can't comment on that, i'll try and download it today and give you another reply. The android browser pinch to zoom works damn near flawlessly for me.
As for the power cable, yes I was a little weary of it and the size. But since the battery lasts for quite awhile on this thing, I just plug it in on my nightstand and it lasts me through the day.
My typical uses through the day are music, browsing the internet on breaks, work e-mail, picture management, and work e-mail (exchange push). I start work at about 8 o cloak and am usually done around 6. During this time theres constant use of e-mail and music, and when the day is finished I am around 35%-50% on battery depending on how the day has gone. When I am home, its light browsing and maybe a game for awhile.
The power adapter could become an issue if you plan on having it travel with you constantly, but in a fixed location for charging and nothing disturbing it, its not so much of an issue.
Are you seeing the artifacts? It is like a blip and then the app starts.
I know what you're talking about... but it only occurs for me with Dolphin. I used to use that as my main browser and pinch/zoom when it would try to reload the text/images it would be very jittery.
Again though it's the apps issue not the tablet or honeycomb.
I just had to change the default browser to load as a desktop and not as a mobile device.
i know this probably a common excuse, but HD Dolphin isnt made for honeycomb. Dolphin is making a tablet specific browser and hopefully it'll be release soon. i have both installed just to keep my browser option open.
as for the power button, i think it's the best place. what you dont release from the demo unit is that when actually have in your hands, it's completely different. if the power button was along the side anywhere, it could be easily hit. especially laying down it on it side or even having it in a tablet stand. i even have some issues with the volume button when i place it in my tablet stand.
besides all that, i contact Quickoffice and asked about whether they're developing a Honeycomb specific Quickoffice with editing and making new documents. they said yes
I use the stock browser with no problems.I don't see why they had Dolphin browser on the Xoom anyway because its not designed for honeycomb & furthermore those demo units are no way to judge the Xoom anyway.People push everything in sight on them & mess them up anyway.
I'm surprised they don't perform a reset every once in a while to clear up the device of any hangups.
Though I guess it makes for a pretty good stress test to see if it can handle anything that is thrown at it.
Mooem7 said:
I'm surprised they don't perform a reset every once in a while to clear up the device of any hangups.
Though I guess it makes for a pretty good stress test to see if it can handle anything that is thrown at it.
Click to expand...
Click to collapse
yeah I put all kind of stuff on there testing stuff I read here.
Launcherpro
dolphin
spareparts
asee ( app i use for my home dvr)
The verizon store also had an ipad right next to it, and I do have an ipad now, but love my Droidx.
the other thing I seem to notice is that the colors are a little washed out on the xoom compared to the ipad and the ipad is much brighter, but that always is best especially late at night in the bed. The ipad is to brit on tne dimmest setting.
Man i just cant decide to drop the dough....

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.

[Q] slow scrolling is choppy, digitizer issue?

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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Click to collapse
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.

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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Click to collapse
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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