yashsingh1/xdaforums huggingface dataset:
[Acer Iconia Tab A100] aznmode:
My Evo 4g had grounding issue where touch screen would not respond correctly. Software fixed it for us. So I'm not discounting software as an issue with the a100. I know kind of doesn't make sense either that it's software related.

Here are some posts

http://techcrunch.com/2010/06/28/ht...-touchscreen-grounding-issues-speeds-up-wifi/

http://www.engadget.com/2010/06/18/htc-has-fix-in-the-works-for-evo-4g-screen-sensitivity-separati/

Heres a video of the issue

http://www.youtube.com/watch?v=Zr6TzZ22DBE&feature=related

Heres one that uses multitouch vis shown at the end of the video. The a100 reacts this way when your not holding it.

http://www.youtube.com/watch?v=_kJ_fR02suQ&feature=related
[Acer Iconia Tab A100] aznmode:
So called support which transferred me over to their Level 2 support and their tech could not replicate the issue. The pad he had didn't exhibit the same issue. He said he can't download the multitouch vis app since market is not set up on the device he's testing. Has anyone else tried to talk to level 2?
[Acer Iconia Tab A100] aznmode:
Here's a video I made to show the issue

https://www.youtube.com/watch?v=YrDXfj6TchM&feature=youtube_gdata_player
[Acer Iconia Tab A100] Joecascio2000:
Nicely done. You should make a view showing what this actually does when trying to use the device. (Link clicking, homescreen scrolling issues) then send the two links to Acer support.

---------- Post added at 07:53 PM ---------- Previous post was at 07:35 PM ----------

I just sent the following e-mail to Acer Support:
[Acer Iconia Tab A100] aznmode:
joe thanks for emailing support with our issue. As far as making the video you requested i thought it may not look as obvious as this one so i decided to go this route instead. Ill see what i can do tomorrow about making another one.
[Acer Iconia Tab A100] Joecascio2000:
No prob the more the better. Like I said earlier I really like this tablet. And I'm really hoping it can be fixed with a simple software update. Even if I have to wait til the ICS update! *fingers crossed*

---------- Post added at 09:08 PM ---------- Previous post was at 08:21 PM ----------

Well I got a fast response although it's not the one I would have liked.
[Acer Iconia Tab A100] aznmode:
Sounds like 1st level support similar answer you would get with their chat support. They had to create a ticket for me to prceed to level 2 support. They gave me a number to call. I used my work phone so i dont have the number with me now.
[Acer Iconia Tab A100] Joecascio2000:
LOL. Level 1's don't know anything.

Any way this is what I replied:

Also, I made a video to show the home screen problems.
[Acer Iconia Tab A100] aznmode:
Ya they dont know crap. Id ask them to escalate you to level 2. And thanks for the video. Hopefully this catches their attention sooner or later. Ive also posted on acertabletforum.com.
[Acer Iconia Tab A100] m2b999:
Where did you get firmware 3.2.1 from? Pushed update???
[Acer Iconia Tab A100] aznmode:
Made one more video. This ones more evident. I did this on my bed and it seems its worse than my earlier video on my work desk. Perhaps my work desk is somewhat more grounded?

https://www.youtube.com/watch?v=7ajFNZBa2UU&feature=youtube_gdata_player
[Acer Iconia Tab A100] felilin:
Someone want to try TouchRecalibrate.apk

Sorry. The URL can not be put because Lack of posts.
[Acer Iconia Tab A100] ED2O9:
I experienced the same problem last night, and it was the most pronounced when I had the tablet sitting on the bed. The tablet was was practically unusable. I ran TouchUtil this morning, but I'm at my desk at work and the problem appears to be resolved. I've tried it on several surfaces, but everything tracks cleanly. I'm guessing it is a problem with static. I'd be interested to see how it does on a rubber matt.
[Acer Iconia Tab A100] aznmode:
Interesting. Maybe thats why the tech from acer didn't have any problem moving around the home screen and app drawer. That's gonna be harder to have the tech reproduce. I wonder if putting it on top of the box would replicate the issue.

---------- Post added at 10:37 AM ---------- Previous post was at 10:33 AM ----------

Not sure what this would accomplish since holding the tablet eliminates the issue and the calibration isn't off. Can you provide more info?
[Acer Iconia Tab A100] m2b999:
My problem comes into effect if I installed or used SwiftKey X Tablet Keyboard... weird!!!
[Acer Iconia Tab A100] Joecascio2000:
Another great video to show the obvious problem.

And yes this is very noticeable when lying on the bed, which I do occasionally. They sent me another e-mail saying it's a hardware issue specific to my device only and that it is covered under the warranty. They want me to send it in for a physical repair. Not sure I want to do that considering I've only had it for a week and I'll lose all data on it. (Not to mention it's rooted.)
[Acer Iconia Tab A100] aznmode:
I dont know I had 3 units already with the same problem so sending it in might not even fix it. Plus you have to wait to get it back? What about your return window? I have 2 weeks only to get a full refund on mine but I'm not sure about yours. I'm really considering just returning it and just wait for whatever comes out next year. I really think they have some QA issue at Acer.
[Acer Iconia Tab A100] Joecascio2000:
I dont have a return window because I bought it from a friend, who got it from his dad. So I don't have the receipt.
[Acer Iconia Tab A100] crossix:
Using a combo of this and another method I found here on xda just about has this issue fixed for me. I found these fixes posted for the same issue in the gtab forum:

First try downloading, installing and running this app:

http://vegantab.gojimi.com/download/TouchRecalibrate.apk

(Use at your own risk, it worked for me... may or may not work for you!!)

Once I used the above app, the top right side of my screen no longer registered taps. I then did the following (as described from the gtab forum):

Create a blank file called calibrate.ini in the root of your sdcard and in the root of your internal storage and shutdown your device. Turn the device on but DO NOT touch your screen until after the initial boot process is done and the screen has turned off (while waiting at the lock screen, dont press the power button to manually turn the screen off, wait till it turns off by itself) After the screen has turned off, turn it back on, delete the .ini files you just made and test out the screen to make sure everything is in working order.

To create the blank calibrate.ini files you can either use a text editor and save a blank file to the root of /mnt/sdcard and /mnt/external_sd or you could copy/paste the following into the terminal:

touch /mnt/sdcard/calibrate.ini

touch /mnt/external_sd/calibrate.ini

After rebooting (to remove the files):

rm /mnt/sdcard/calibrate.ini

rm /mnt/external_sd/calibrate.ini

Or just use your favorite file manager.

Again, these steps worked for my screeen was almost unusable, but now its pretty decent. Your results may very, use at your own risk!!!
[Acer Iconia Tab A100] jahciple:
i downloaded slide it keyboard and it got rid of the double typing of letters. a $.10 fix. there are two modes, mode for normal typing which still type double letters but in slide mode you can also type and slide and double letters are gone.
[Acer Iconia Tab A100] crossix:
The fix I've posted above is for those that have sensitivity problems where their screen isn't sensitive enough. If you scroll through websites or lists in a file manager and things randomly get selected this fix will help with that. It will not help too much with the keyboard issue and may even make it worse.

After going through the fix on my a100, my screen taps and scrolling seem more accurate with single handed use. There is still an area on my screen though (the upper half) that still exhibits the problem but not quite as bad. When using my tab in landscape mode its much better than it used to be. I use the hacker's keyboard (lets me pick the size of the keyboard and is more like a normal querty keyboard and is great for doing stuff in the terminal) I dont have the double keypress problem using this keyboard.
[Acer Iconia Tab A100] niabi:
mine had a few issues with sensitivity (accidental clicking, multiple letters, etc) and the fix you posted worked perfectly on mine! :) Thanks
[Acer Iconia Tab A100] crossix:
If it still seems bad, try the custom build.prop in the dev section. It includes alot of fixes for this issue.
[Acer Iconia Tab A100] madman_sle:
Thank you crossix, i have been debating on whether or not to try the custom build.prop until this. I have been having the same issues with the screen. Scrolling has much improved with the build.prop swap, i am no longer accidentally entering threads in Tapatalk. Still getting double letters with thumb keyboard but it is a minor issue that can be resolved by slowing down when typing. As long as i dont have two fingers on the keyboard at once it doesn't seem to double-tap.
[Acer Iconia Tab A100] sikesjb:
This isn't the exact same issue as what I've seen here, but relevant i think.

My tab has been having some fits for a while now. I've had it since November. It has happened in many different occasions. I'm currently running the latest buildprop from crossix as well a the sd swap, but this was an issue prior to that. I was hoping the build would fix it. I'm currently on 2.007.01 gen2 kernel 2.6.36.3. All ota updates. Again, this has been happening long before i switched build prop. I've tried a handful of resets/fixes to no success. Almost seems like maybe a digitizer/hardware issue?? Has anyone else seen this or have any advice to a fix?

https://www.youtube.com/watch?v=qLklFnNSBhU&feature=youtube_gdata_player
[Acer Iconia Tab A100] crossix:
Yeah, that looks like a digitizer issue.. If you have a bluetooth mouse, you could try pairing it (if you can get to that point) and see if it stops when it starts doing that. I´d restore from one of the Full builds in the dev section (not an upgrade build), upgrade it to the latest ota and then send it in under warranty.. Despite what you might have read around these forums or else where, just because you root or change files in /system doesn´t mean you´ve voided your warranty. As long as you can restore it back to stock Acer never knows the difference.
[Acer Iconia Tab A100] sikesjb:
Bummer...thanks man!
[Acer Iconia Tab A100] Jesse6749:
I thought I was the only person with this issue too, oh well good thing I just got a Transformer Prime 64Gig with the Keyboard docking station to boot and now I may just give this thing (A100) to my wife so she can watch videos on it LOL!!!!
[Acer Iconia Tab A100] TheGeek007:
I noticed this soon after I got my A100 in January. I noticed on touchutil the lines i would draw were broken. In fact I just did a test by placing the tablet (in a leather case) on a bed and the lines were very broken. It does appear to be an issue with grounding, but even in my leather case its usable.

I used the recalibrate.apk and while holding the tablet in the case, I noticed a significant improvement.

Thanks!
[Acer Iconia Tab A100] Jesse6749:


I have mine in a leather case and it is still the same, I have not tried the recalibrate.apk yet. But I may try it and see if it helps. But for now I am having too much fun with my Transformer Prime that luckly has a good working wifi so far unlke other TP users that have broken wifi.
[Acer Iconia Tab A100] pakisan:
I'll try to use the recalibrate.apk. Even with the stylus Original Acer, the lines are broken and never linear. Thank you again.
[Acer Iconia Tab A100] pakisan:
Up the topic, I have interesting news. By chance I found this app: Acer Liquid Settings.

I installed it (requires root) and I set the sensitivity of touch to 75 (default 25) Well the number of double and triple pressure was reduced significantly. Council to try it if you have the root.

PS: If you explode you tablet is not my fault.
[Acer Iconia Tab A100] Psycho$miley:
It is not working

I tried the above method but unfortunately it did not work for me it did help some but I still have issues when scrolling and especially when using a stylus that works with sgs II and ipad

Any other thoughts?

I upgraded to ICS hoping it would help as well and it did not.
[Acer Iconia Tab A100] lowrider262:
My screen was too sensitive, downloaded the liquid app, set the sensitivity to 10 and seems to be working great so far! Thanks
[Acer Iconia Tab A100] crossix:
If your rooted on stock HC the custom build.prop also fixes the "touchyness" of the screen.
[Acer Iconia Tab A100] Psycho$miley:
touchyness with stylus

Are you able to use a stylus without it looking like Morse code? Also would cut and pasting the related build.prop items work on ICS?
[Acer Iconia Tab A100] crossix:
You could use a stylus no problem in hc with the modified build.prop.

For ICS some items do not work such as the hardware accellerarion (since its already baked into ics). I had been working on a new build.prop but decided not to release it because it caused fcs in the browser and flash after updating to the latest ICS (9). Im waiting until the ota comes out before releasing a new one (there is one though that someone made from the hc one I released in the dev section although I dont know how well it works).

I'm thinking about putting together a cwm flashible custom rom that includes some mods (sdswap, root, build.prop and some other tweaks) as time permits.
[Acer Iconia Tab A100] Psycho$miley:
I downgraded back to HC rooted and installed your build.prop. I have got it considerably better but its still not great with the stylus. This is what happens when I use my touchtec pen(works fine with Ipad 2 and samsung gal s2) its solid for the most part but is sometimes Morse code.
[Acer Iconia Tab A100] Raul77:
I just got my A100 and having the same issue, the screen is WAY too sensitive and i notice even when using fingers like when drawing a circle it breaks at times and looks like morse code.

Where can i download the Buildprob everyone is talking about? also are all of you guys having this issue? wondering since i just got the device if its like this i should just return it ??

Thank you,
[Acer Iconia Tab A100] pintek:
use the search function in the forum look up HC build prop acer a100.

would just link it to you but everyone on the forums needs to learn the search function.
[Acer Iconia Tab A100] aznmode:
On my phone right now but its in the development section. Look for buildprop HC and Buildprob ICS. Depending on what rom you have. Root required.
[Acer Iconia Tab A100] Raul77:
yeah found it afew days ago, without it i was going to return the A100, it was horrible, it made a HUGE difference now i am enjoying the Tablet.
[Acer Iconia Tab A100] spino1970:
it should be great :)
[Acer Iconia Tab A100] mvaraujo:
Perfect, bullseye

I already thanked Perfect Keyboard for feasible typing.

But, this little fella just turned everything else possible.

Now every single touch, slide, pinch, no matter the pressure nor the angle, just get sensed.

Thanks, thanks, thanks, thanks.

And... thanks.

There are little decent 7", 8" tablets out there...

Regards,

Marcus Vinicius Araujo
[Acer Iconia Tab A100] tony_2018:
With the confirmed ics rolling out today can you use that and build a custom rom or is your custom a stables, all working, Rom already. I have this problem as well.
[Acer Iconia Tab A100] spoofdogg:
Sensitivity

I too had this same issue.

Running ICS 015 stock, rooted.

Leather case.

Downloaded Liquid Settings and upped the screen to 75.

Changed the noise to 75 = bad idea.... reverted back to 50 = much better.

Downloaded touchrecalibrate.apk and followed instructions.

So far... So good.

Screen seems to not jump around as much. The random zooming has stopped as well as the randomly clicked links.

I'll give it a few days and report back.

Thanks for the tips so far.
[Acer Iconia Tab A100] rockmonkey1973:
amazing. i have just bought this tab and a quick google search led me here and then i see this post. removed that darned ugly fcc sticker and hey presto all is ok. quite remarkable how a sticker on the side of the tab can affect usability so much. thanks for inadvertently saving my tab from going back to the vendor as faulty.

now if only i can get the battery running a little longer then this tab will be a great buy especially at the price i paid. have scouted a few threads that i think may help and aim to root and unlock and flash tomorrow.

EDIT: Spoke to soon. that helped but hasnt solved the problem. i am now going to have to read the entire thread to find the solution because it is pretty bad. i have never had a device stick like it does when touched. it is as the tile suggests simply too sensitive and because of this can at times feel as bad in use as one of the old resistive screens. will hunt down the solution tonight and fix it tomorrow.
[Acer Iconia Tab A100] rockmonkey1973:
ok sorry for double posting but i have read through the whole thread and i have tired the liquid settings app and the other calibrate app and neither worked.

i have definitely got the same problem some of you lot have had. the tablet is unusable when it is laid down on a sofa or my bed or placed on a tablet stand. the menus wont scroll they stick and links are opened without being properly touched. swiping from side to side will either not work or take me two or three screens further on and it will also boot me back to the home screen start the clock the browser etc etc when navigating the app drawer.

if however i am holding it in my hand it works perfectly fine and all menus behave as they should.

So anyways i have as i said tried the apps and they havent helped. it is still screwed and my only final hope is the build prop for ics will make a difference. if it doesnt then it will have to go back. i am extremely annoyed because this is the second faulty tablet i have bought in the last 2 weeks. i seem to be born unlucky when it comes to tabs.

basically i am wondering if there was some magic solution that people found that wasnt posted about on here?

or i am wondering if the build prop did actually make a difference for those of you that tried it?

or did anyone get any joy from acer? did they replace the tablet? if they did how long did it take? i may be more inclined to send it back to the retailer if the rma process with acer is a lengthy one but i only have 2 days left to decide so if anyone can help then that would be most appreciated.

like i say the tab is alright and behaves ok when i am holding it in my hands but trying to use in any other scenario leaves one extremely frustrated. in fact i will go as far to say that there are only two things i dont like about it... the images on the back cover (please dont graffiti on my tab) and the battery life which is pretty shabby (but acceptable).
[Acer Iconia Tab A100] Diknak@gmail.com:
it's a hardware issue. The device isn't grounded properly, which is why if it is laying down it acts differently than if you are holding it. You have to touch the bezel to get it to respond properly. That is probably the most annoying thing to me about this tablet.
[Acer Iconia Tab A100] rockmonkey1973:
hey thanks for the reply mate appreciate it.

ok is it the same on all of them? if it is it is going back because i find it unacceptable that i pay x pounds for something that is faulty.

if it isnt and is instead a random batch then i am willing to let acer fix it.

i actually called them today and they said to hard reset it. i have done that with the little pin in the hole and it may have actually improved the situation but it is still there and is annoying as hell. i havent fully tested it properly but just a little play as i write this is enough to make me realise that not a lot had changed. so it is the bezel is it. seems kind of strange that it is actually ok on my wooden table but on say a sofa or placed in a stand it bugs out.

does anyone know what the turn around is? will the buld prop help then? i am guessing not if it is a hardware issue.

edit: also does it cost money to return the tablet to acer or do they provide a pick up and return service?
[Acer Iconia Tab A100] pio_masaki:
Not all have it, mine didn't and neither does my mom's. The turn around best I can gather is about 2 weeks, and you pay to ship it there, they pay shipping back. Mine came to $25 with ups ground and $250 insurance on it.

Tapatalked from my Galaxy S II.
[Acer Iconia Tab A100] thx1200:
Can somebody post Liquid Settings apk?

Liquid Settings is no longer on market. I had it on my old A100 and it seemed to help, but I had to warranty exchange and now it seems that it's been yanked from everywhere I've googled. I should have made a backup of my old tablet, but wanted a fresh start so didn't bother. Grr...
[Acer Iconia Tab A100] Romman0:
I'm not familiar with the app, this may be what your looking for. The apk link in the lower portion of the OP is still working.

http://www.modaco.com/topic/332310-app-liquid-settings-v-13-final/
[Acer Iconia Tab A100] thx1200:
That's it. Thanks! Man I spent 30 minutes googling and couldn't find it. :)
[Acer Iconia Tab A100] Raul77:
how is your experience with liquid settings, i tried it and still the same, screen i soooo sensitive and like when you want to draw a line it keeps breaking like dash lines --- ----- - I am on CM10. any suggestion?

Thanks,
[Acer Iconia Tab A100] pio_masaki:
Digitizer issue, some units have bad / inconsistent grounding and the digitizer does that.

Tapatalked from my Nexus 7 - Kuroikaze AOSP
[Acer Iconia Tab A100] Romman0:
Yeah, most of the time holding the tablet in your hands without a case, will stop it. Or having it plugged in.
[Acer Iconia Tab A100] justjackyl:
Does liquid settings actually work? I swear when I used it, it was like placebo effect.

G2x-temasek CM7 build135.3 w/faux 054 kernel
[Acer Iconia Tab A100] Izzyb914:
:D Has anybody tried this Calibration App. http://xdaforums.com/showthread.php?t=934500

It works Fantastic.........Give it a try.
[Acer Iconia Tab A100] siuseppe:
True. I try it and it works very well.

Thanks
[Acer Iconia Tab A100] Gulfstream 650:
I tried It and it does have a positive effect, nice find!
[Acer Iconia Tab A100] Jaydizzle414:
it too have this problem, its not that bad but it gets annoying. i usually just double click letters 24/7 but i am still pleased with my acer :)
[Motorola Droid Bionic] PG101:
The ICS sources are being uploaded. Ref: https://groups.google.com/forum/#!to...ng/T4XZJCZnqF8

All other threads related to this (in anyway) will be deleted without notification!

All discussions here!

Cheers!

Ref: http://source.android.com/source/downloading.html
[Motorola Droid Bionic] CC Lemon:
I thought there would be more discussion on this by now.... I guess I'll start:

With the current development, would be we able to install a true version of ICS on the phone or do we have to wait until the official update?

What will happen with the main buttons? Will they be displayed in ICS fashion or will the physical buttons still be used? I'm not sure I've seen what the projected layout will be for the phones that will be receiving the ICS update.
[Motorola Droid Bionic] denpth:
I may be wrong but i think we have to wait until motorola releases ICS because the kernels on our phones will not have all the features of ICS incorporated so the roms cant be boot. Hence another reason for unlocked bootloader.... LOL The endless cycle.
[Motorola Droid Bionic] dpw2atox:
I think they could get ICS running on the Bionic via 2nd init or some other workaround. I think the biggest challenge wont be to get ICS on the Bionic, it will be to get ICS on the Bionic with all features working.

Currently I know CM7 is being ported and works for the most part but there is no 3/4G data. Things such as this will need to be resolved in the ICS port as well im sure.
[Motorola Droid Bionic] dan46n2:
ICS source code... wouldn't that be more related to development discussion than general discussion?
[Motorola Droid Bionic] crking1980:
The answer would be no.