[Q] Lag in note taking: hardware or software? - Acer Iconia A500

Hi *,
I was trying to use my A500 to take notes but all apps I have used are very imprecise and laggard wrt a wacom even if I tried to fiddle with screen sensitivity and so on.
So the questions are
1) is it because of the screen?
2) is it because of the stylus?
3) is it because all apps have access to screen data using java and this would improve accessing the screen driver directly?
and
4) how can the situation be improved?

Switching styluses did the trick for me. I use the Alupen and widened the brush width slightly on Handrite and have not had any issues with note taking since.
I also have a gtablet and noticed the same performance benefit as soon as I switched the stylus on it.

There seems to also be a known issue of general video lag on the A500 when you orient it in any position other than the default landscape orientation. Here is a video someone made to demonstrate the issue.
http://androidforums.com/3800882-post15.html

Related

Poor touch recognition on screen corners

Am I the only one that seems to be having a major issue with this? It comes up more with the added on screen keyboard in 1.5, it seems.
The corners of the G1 screen do not respond to touch at all, and I find myself always having trouble hitting the keys on the corners of the virtual keyboard. Applications that require you to touch any corner of the screen with precision (ie tic-tac-toe) are annoying as well because it's difficult to get it to work.
Is there any fix in sight or is it a hardware limitation?
definitely a hardware limitation.
hardware limitation means: normal hardware limitation or limited due failure????
I only experience this problem with the right edge of my phone. The top, left, and bottom don't have any problems.
Touch also seems to be less sensitive when the phone is rested flat.
My phone has the sensitivity problem on the edges too (mostly on the right and top sides).
For example, it's almost impossible to drag an icon to the left screen, because it doesn't seem to reach the threshold area.
The protective screen (boxwave anti-glare) made the problem even worse, but since it's much more comfortable than the glass, I won't be taking it off.
The easiest way to test all this is to use the whiteboard application.
So, I ask the developers: Please don't place the buttons on the edges of the screen!
The worst apps in this regard I've seen so far were the Video player (don't remember its exact name, its seek slider was unusable), and the sudoku with the number chooser in the bottom. OpenHome's app slider has the same problem.

Touchscreen not sensitive enough?

Anyone feel the same with their GT10.1? I feel like sometimes I really need to press on an icon to make it launch or swipe really hard to get it to move.
Is there a way to increase the sensitivity? Anyone else notice this too?
It's not a huge problem just a minor annoyance. It just doesn't seem snappy.
I've noticed that about mine too. Nothing major but an annoyance nonetheless.
Sent from my GT-P7510 using XDA Premium App
When I tried the Asus Transformer that's what I found, needed more pressure than I expected for it to register. My 10.1 seems fine, responds to very light touches nicely.
Is there a calibration setting somewhere?
I find myself hitting everything twice. First time it doesn't register, next time I push harder. My XOOM screen is more sensitive. Guess I'm too used to that. This effects swiping in the browser too. Its hard to push gently to move a page up and down. I have to push harder and then every once in a while the page ends up scrolling at high speed all the way to the top or bottom.
It seems to me that I just need to get used to using the larger capacitive touch screen. When first using a smaller touch screen everyone begins to realize what part of their finger is actually touching the screen. I don't know if the screen is any more or less sensitive but I've been getting better at using this larger screen and noticing which part of my finger actually making contact and where.
Ill tell you 1 thing for sure, this thumb keyboard is amazing! I think I might actually like it better than swype! You can really type quick and the auto correct works very Well!
Sent from my Samsung Galaxy Tab 10.1.
Here is some evidence that the sensitivity problems with the screen may be hardware/software related.
After a hard reset the screen appears to be very sensitive.
After an hour screen sensitivity seems to drop.
BUT there is something else going on - at the same time, after a hard reset my Targus capacitive stylus works normally on the Tabs screen.
At the time when the screen sensitivity seems to drop, the Targus stylus stops working. It can no longer be used to swipe the screen or scroll the browser. Finger swipe and scroll still works however.
Now why would the Targus stylus suddenly stop working, unless there is a real change in the capacitive sensitivity of the TAB 10.1 screen such that it falls below the threshold necessary to operate/detect the stylus?
The touchscreen on the Tab 10.1 definitely isn't as accurate or sensitive as the Xoom. I had both side by side for a few days before I returned my Xoom and you can definitely tell the difference.
However, I'll take the Galaxy's screen over the Xoom just from a contrast/color reproduction standpoint, so I guess there are pluses and minuses to everything.
Sent from my GT-P7510 using XDA Premium App
Apparently Tegra 2 is not able to cope with all of the open tasks,live widgets,and have enough power left to make the immediate switch to a larger screem's touch commands.
hagba said:
Apparently Tegra 2 is not able to cope with all of the open tasks,live widgets,and have enough power left to make the immediate switch to a larger screem's touch commands.
Click to expand...
Click to collapse
I have a XOOM as well, and it handles multitasking just fine. There is no hesitation or lack of screen sensitivity at all. I pulled it out this morning and was amazed at how much smoother the user experience is. You tap once - the screen responds - on my GTAB 10.1 I have to conciously think about every click and half the time I still have to do it twice.

[Q] Screen Jittering When Scrolling

Hi. I've recently noticed more screen jittering and periodic flickers when I'm scrolling. I tend to keep my thumb on the screen and slowly scroll when I'm reading. The problem isn't as bad if I just tap quickly to scroll, but if I do it slowly, text is shaky or almost shimmering.
Anybody else get this effect when scrolling? Opinions on whether this sounds hardware or software related?
Samsung Focus 1.3
Recently updated to Mango
Used almost a year
Thanks.
depends if you are talking about the home screen or in applications...regardless it is a software issue.
You didn't mention if you have a microsd card installed and how full it is.
Secondly, this is known to happen immediately after reset, and is somewhat normal.
Background apps might also affect performance.

[Q] Handwriting with stylus problem

I see that if I handwrite on MS2 using my finger on (for example) One noter or similar. the writing is practically in realtime.
However if I use a stylus everything is laggy and often I do not even get to write
where I pass the stylus.
But it works fine for touching icons etc.
I even tried with a "precision stylus" with the same results.
Is there a way to increase the discharge through the stylus or is it a problem with the MS2 screen sensitivity?
Has anybody experienced similar problems?

[Q] S-pen vs. finger, need some clarificaton.

I am happy, apart from WiFi problem, Note 3 user but I have some questions regarding spen. I havent head any experience with spen before but I guess my expectations were higher then the reality, so here we go:
1. Shell the spen be sensitivity be equally good to my fingertip? In my case, finger servse it purpose better.
2. When I use the spen at an angle ( so colled natualr writing angle) the reception is poor. is it normal?
3. Shell I apply slight pressure when using the spen, or shell "the touch" itself be enaugh?
4. The worst part is about the capacitve buttons, I need to tap with the spen, 2-3 times before the device registers it.
Please help me out, as I need to make my mind before I go complaining
Thanks!
I went to the shop and tried the note 3 before I bought it. (3 different shops).
At the shop I played around with it, mainly with the s-pen.
I can definitely say from my own experience (30 min all up) that I found using the pen quite easy, and while I I needed to get used to it for the first couple of minutes, I experienced no issues.
I also used the pen from another samsung tablet that was next to it and found no problem.
I will say that my finger is much less accurate than the s-pen.
If you have a problem, try and go to a shop and try their note 3 pen on your device to see if its different.
You could try a tablet pen as well to see if that makes a difference for you.
Good luck.
Sent from my GT-I9300 using Tapatalk
The S-Pen is Wacom pen technology based device, which allows presure sensitive writing/drawing if the program/App makes use of this.
You will see a pointer if you come close to the screen with the wacom pen and moving across the screen, in windows tablet the mouse pointer is already there but will move with the pen movement too.
You have to touch the scrren with the pen tip an provide at least minimal preassure. The benfits are:
- if the programs do not support preasure sensitive input you may assume that it's not better then your finger.
- If the program supports preasure sensitive writing/drawing the line will get thicker or more pronounced e.g. if you draw using the spray paint. -
- Other Wacom pens work too, e.g. the S-Pen from my Samsung Slate7 win7 X700T1a tablet. It's slightly larger and better suited for work.
- The main benefit over the smaller pen that come with the Note is that on the opposite site of the pens tip is the erase button, that allows you to erase parts you don't won't.
- In addition to the keayboard you get also handwriting recognition, which is toggled by a button on the keyoard.
Unfortunately Samsung does not provide many details on the interfaces or versions, but I would assume it to be around 256 presure steps. Wacom tablets may be as high as 1024 -2048 steps.
I hope that helps you to have a better understanding of Wacom technology and what to look for. For me the Wacom based pen was a large reason why I choose a Notes.
Thank you for your answers but I am rather then understanding the technology trying to identyfi if the s-pen that came with my note 3 works as yours.
I just wanna ask if it register / works the same as yours and if you are experiencing the same when using it.
1. Is is as respoosive as your finger when touching the screen? Is just "touching" just enuagh, or sligh pressure need to by applied when navigatin between screen or while browsing?
2. And the captivate buttons, do they register your taps every time?
Thanks!
cudo said:
Thank you for your answers but I am rather then understanding the technology trying to identyfi if the s-pen that came with my note 3 works as yours.
I just wanna ask if it register / works the same as yours and if you are experiencing the same when using it.
1. Is is as respoosive as your finger when touching the screen? Is just "touching" just enuagh, or sligh pressure need to by applied when navigatin between screen or while browsing?
2. And the captivate buttons, do they register your taps every time?
Thanks!
Click to expand...
Click to collapse
1. A slight touch on it. Just like how you touch or tap it using your finger.
2. Yes, since Note 8.0, S Pen works with the captive buttons. Ours one too.
Different between using S Pen and finger for the Air View is:
1. Finger - you can preview picture / SMS / header / email / speed dial etc
2. S Pen - besides what the finger could detect, S Pen also act as the mouse hovering mode and you can hover it above most of the icon and shows you a description what does the icon do

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