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The G1 and "touch" Surface Area

can the G1 calculate surface area of a point touching it? or would it be possible to do that? it seems like it could work, but i'm not sure lol or else i wouldn't be asking this.
the reason i'm asking this is, we can make apps that emulate "pressure" so if someone barely taps the phone, it will have less surface area, and if someone presses the phone hard, it will have more surface area, there could be A LOT of things done with it

Don't see why not being it has been shown to be able to handle multi-touch. I agree though... would have many possible applications

yeah it could be used for games and such where u could see how fast you can match the weight on a weighing scale of some sort. i'm just saying it should be easy since we've seen multitouch on the phone. this would have an extra benefit over the iphone.

People are always asking for scales on touch screen devices and never get them.

Or finger painting with pressure driven line width or opacity!

Lieu10ant said:
yeah it could be used for games and such where u could see how fast you can match the weight on a weighing scale of some sort. i'm just saying it should be easy since we've seen multitouch on the phone. this would have an extra benefit over the iphone.
Click to expand...
Click to collapse
The scale idea wouldn't work on a capacitive screen. The sensor detects the area being touched and then approximates the center. The idea of a "pressure sensor" would have to adjust based on variances from the initial contact. My thumb would make a much bigger initial contact than my pinkey, that doesn't mean I'd be pushing any harder.

but it is basically inferred that everyone will be using their thumbs for these types of apps so it wouldn't matter. but HEY guess what? its basically proven that the G1 CAN infact determine "pressure"!! i've had this app for a while now, but i just recently opened it up again to mess with it, and to my surprise, i noticed that the app could tell how much "pressure" i was puttin on the screen. now i dont know if its actual pressure its calculating, or if its the surface area it is calculating, but it sure as hell knows the difference between a light, medium, and hard press.
the app is called BouncingBall in the games section (it would definately be the last place i would see a pressure sensitive app lol) it may seem like such a dull app (no offence) but it really is a great concept. try it out. you just click the screen, and a ball appears where you tapped the screen, and depending on how hard you tap the screen, the size of the balls differentiate. and i know it isn't a "how long you held the screen" type of thing, because i pressed the screen pretty hard a couple times very quickly. like a quick hard jab with my thumb lol. and the ball that was created was large. but anyways, test it out.

I'm not sure if pressure data is made available/enabled in Android, but the synaptics touchscreen and driver definitely do support pressure detection. Check out the driver in git:
http://android.git.kernel.org/?p=ke...drivers/input/touchscreen/synaptics_i2c_rmi.c
and search for ABS_PRESSURE. Technically it's a misnomer as capacitive sensors don't deform or directly measure pressure in any way. "Pressure" is actually the change in capacitance as a finger (or any other object) approaches the touchscreen. It is used by the driver to determine thresholds for which the touchscreen should signal the system finger_down and finger_up events. Since no contact is needed to measure a capacitance change, the sensor may actually report a change in "pressure" even before the finger has touched the screen.
Still, I don't think this would be a very good idea for use as a user input. One reason is that everyone's physiology is different. My thumb lightly touching the screen may give a value of 10, whereas your thumb lightly touching the screen could give a value of 20. Another reason is that I don't think it would be very wise to encourage users to be liberally applying pressure to the screen.

N1 screen calibration

I'm convinced that the screen is slightly out of calibration - but I can see no way to reset the calibration. (I'm ex WinMo!) - it must be in there somewhere - or do i need "an app for that".
Advice appreciated
G.

I was also thinking this. Unfortunately I still have not bought the phone yet, or I would of tried creating an app to test this theory. If a touch can be captured in x/y data, we could see what the problem is with the bottom row keys.

gf_gollum said:
I'm convinced that the screen is slightly out of calibration - but I can see no way to reset the calibration. (I'm ex WinMo!) - it must be in there somewhere - or do i need "an app for that".
Advice appreciated
G.
Click to expand...
Click to collapse
The more I use the phone, I'm starting 2 think that the screen is not so much out of calibration, but is very sensitive 2 the angle that U touch the screen. when I use 2 hands 2 use the phone, It seems 2 always respond correctly
cause my finger is touching straight down, but if I use 1 hand and try 2 reach
across the it responds off a lil at times. 2 solve this I put the phone 2 the end of my
fingers and secure it as far from my thumb as possible. awkward at first 4 me be it responds correctly when I do. Hope this is clear and helps U. I do have big hands though.

esincho said:
The more I use the phone, I'm starting 2 think that the screen is not so much out of calibration, but is very sensitive 2 the angle that U touch the screen. when I use 2 hands 2 use the phone, It seems 2 always respond correctly
cause my finger is touching straight down, but if I use 1 hand and try 2 reach
across the it responds off a lil at times. 2 solve this I put the phone 2 the end of my
fingers and secure it as far from my thumb as possible. awkward at first 4 me be it responds correctly when I do. Hope this is clear and helps U. I do have big hands though.
Click to expand...
Click to collapse
I might know what you are talking about. At times I can't slide home screens when using the phone with one hand and it can get very annoying, but I blame myself rather than this wonderful phone.
I also remember my wife using the phone while it was flat on the desk and it would not respond properly, but as soon as it was picked up and did the same procedures it would work properly. We were thinking that It may have something to do with the angle of the phone and our fingers on the screen. Dont really know I just know how to get it working.

Have you guys rooted and enabled multi-touch?
If not, are you sure this isn't to do with the lack of multi-touch. On my N1 I have the same problem when using it with one hand. And I've noticed it's because part of my palm sometimes touches the screen as I'm holding the phone. As theres no multi-touch it won't register what I'm selecting with my thumb until my palm stops touching the screen.
At first I suspected it was an issue with the screen responsiveness/calibration aswell. Because as you try and tap with your thumb a few times, eventually you move your palm and it works.
However, then I took a closer look everytime it happened, and noticed part of my palm was always touching the screen.
Obviously this doesn't happen when you use two hands as usually you will then hold the phone with your fingertips, not by wrapping your hand around it.

5to1 said:
Have you guys rooted and enabled multi-touch?
If not, are you sure this isn't to do with the lack of multi-touch. On my N1 I have the same problem when using it with one hand. And I've noticed it's because part of my palm sometimes touches the screen as I'm holding the phone. As theres no multi-touch it won't register what I'm selecting with my thumb until my palm stops touching the screen.
At first I suspected it was an issue with the screen responsiveness/calibration aswell. Because as you try and tap with your thumb a few times, eventually you move your palm and it works.
However, then I took a closer look everytime it happened, and noticed part of my palm was always touching the screen.
Obviously this doesn't happen when you use two hands as usually you will then hold the phone with your fingertips, not by wrapping your hand around it.
Click to expand...
Click to collapse
Dude, thanks for using your first post on us.
I think you are correct about the palm touching the screen. I have rooted and installed the modaco custom ROM, but I have not installed anything else for multi-touch. I will definitely look into this, thanks.

rydr1 said:
Dude, thanks for using your first post on us.
I think you are correct about the palm touching the screen. I have rooted and installed the modaco custom ROM, but I have not installed anything else for multi-touch. I will definitely look into this, thanks.
Click to expand...
Click to collapse
No problem.
Coming from an iPhone it was not something I ever thought about, so was quite releaved when I figured out why it was happening.
Was on here looking for widgets when I spotted this so thought I'd register and save you scratching your head trying to figure it out like I did.
Lots of stuff to love about the phone, especially the battery life which I'm really impressed with and hadn't even expected to be a plus point over the 3GS. This was just supposed to be a stop gap until the iPhone 4G, but I'm actually thinking I may stick with it now

5to1 said:
This was just supposed to be a stop gap until the iPhone 4G, but I'm actually thinking I may stick with it now
Click to expand...
Click to collapse
If you stick with it then welcome to android.
If you don't then you just need to have fun with this phone.

I've been finding ways around the major niggles I had over the last couple of weeks. So it's looking promising that I won't be splashing out for another iPhone in June/July.
It helps that my brother has one and I've had some time to play with it and get everything the way I want it. Which is part of the reason I got it now. If it had been during a really busy period (work wise), i'd probably be back on the 3GS.

Touch Sensitivity

Hey is anyone elses GTab's touch sensitivity kind of off?
I noticed, compared to the iPad and Galaxy Tab, some times it takes me 2-4x of tryinng to press something to get it going.
Its almost like the screen cant pick it up sometimes. And sometimes when scrolling, it selects things, when im just Trying to scroll..
Also the top left HOME button on screen is always iffy, most times ill need 2-4 more times 2 press it to get it going.
I am using TNT 2.2.
Anyone else noticed this? i feel like its hardware.

Definetely not as responsive as my EVO. Maybe its the cheap screen. I wish it could be fixed via software, but fat chance. I guess not all capacitive screens are created equal.

supanatuwral said:
Definetely not as responsive as my EVO. Maybe its the cheap screen. I wish it could be fixed via software, but fat chance. I guess not all capacitive screens are created equal.
Click to expand...
Click to collapse
You nailed it. IMO Samsung has been making the best color screens for years.

Have had absolutely no problems with touchpad responsiveness from my gTab... Just as sensitive and responsive as my Dinc.
Really does seem like this hardware is hit or miss... Some tabs have no issues some have many.

You guys are just plain spoiled. I've gone through Palm IIIx to now the gTablet, and it just simply has the most responsive touch screen that I've ever used, but I've had recent experience with the dreadful Augen GT and the slightly less dreadful White Pandigital Novel, both of which had worse touch screens than other devices that I've used.
One thing that I do, do for the gTab though is to clean the screen quite a bit. At a minimum I do so before every use as I find the fingerprint/body oils buildup to be annoying in fairly short order and it might have some impact on touch responsiveness. It's the worst fingerprint magnet that I've ever seen actually...

No issues here with single touch sensitivity, pretty good on that. Just as good as my Nexus One. Multitouch and pinch-to-zoom still a bit flaky. I am hopeful that will be resolved by software and/or driver improvements, as it was on the Nexus One.
The only issues I have are when the screen is too dirty or too clean. When I really scrub and clean the glass off entirely, at first it's a bit too "sticky" almost when my finger contacts it - maybe that's because it's winter here in the Northeast and my skin is dry. Once I've used it a bit and it gets some finger grease on it, it works perfectly. But if it gets grit or solid dirt on it, that can definitely interfere with the touch screen too, as with any capacitive screen.
I suspect the optimal thing would be a really good screen protector that's easy to clean and has that smooth finger contact feeling out of the box, like the iPad's glass does, for example, which I think has something to do with the oleophobic coating.

Typing this on my gtablet. The issue for me is the keyboard. There are parts of the screen that are unresoonsive making some letters not get tapped. The A key and l keys in particular. As a result I can't type smoothly or naturally because I will make several errors along the way. This does not happen onky iphone or my wires ipad.
it might bemy rrleason for sending it back as it takes too ongoing totyr correctly and I get tire d of all the corrections.

Well if your using the stock tnt keyboard, it sucks. We can learn from the ipad, with the size of the screen it has huge keys that cover a lot more of the screen then our stock tnt keyboard. I use smart keyboard pro with the key heights set to maximum and it works so much better, like 100x better. Even has voice to text.

Can people check their keyboard? I find that if I type most of the keys they type fine. However, the letter a key seems to only work when pressed offcenter which prevents. From typing properly as I must deliberately slow down and make sure it is correctly typed otherwise I get many errors. Could this be a defect in my screen?
Or is this a ui problem with tnt?
This could be a deal breaker as I misspelled every word if. Has h letter A

Letter A
I have the same problem with the letter A, and sometimes P. Otherwise touch is great

Figured why this tablet is driving me nuts. There are two dead zones on this tablet. Someone please do this test so I can figure out if this is just my tablet or all g tablets.
Download mulitouch vis test. Do rapid light touches in the area where the 'a' key is and delete key are. If I do this test in the middle of the screen it registers every single tap. But in those two areas I can sometimes tap 10 times in a row and not have a single tap register.
If this all g tablets then I think it's going back.
Also is there a keyboard with arrow keys? Trying to place the cursor can be a real pain.

Agreed bout the dead spots. The stock tap n tap western keyboard seems tominimize them due to the angles but if I try another keyboard I miss the a and the return button all the time

Stocklone said:
Figured why this tablet is driving me nuts. There are two dead zones on this tablet. Someone please do this test so I can figure out if this is just my tablet or all g tablets.
Download mulitouch vis test. Do rapid light touches in the area where the 'a' key is and delete key are. If I do this test in the middle of the screen it registers every single tap. But in those two areas I can sometimes tap 10 times in a row and not have a single tap register.
If this all g tablets then I think it's going back.
Also is there a keyboard with arrow keys? Trying to place the cursor can be a real pain.
Click to expand...
Click to collapse
Downloaded the app as well because I, too, am having the same screen non-responsiveness issue. Lo and behold the area where the "L" key is is a pretty dead spot. It would register about 40% of the quick taps I did in that area. Is this is a software issue? If so, I can live with it and hope our wonderful devs release a software build that resolves this otherwise, this thing may be going back because it's driving me up the wall!

I do see the occasional missed tap here and there, but no consistent dead areas that I've noticed (the A and L buttons on keyboard seem fine to me).
Multitouch sensitivity is wayyyyy mis-calibrated though - you have to use very heavy finger presses to get multitouch to register. This is some sort of driver or calibration issue that should be easily solved.
I found a binary called TSCalibration in the /system/bin directory on my VEGAn ROM G Tablet. Tried running it from terminal, but it seems to be looking for a calibration.ini file on the SDCard. I'd be willing to bet we could figure out how to fix some of the touchscreen issues with some work, because I suspect they are principally software related.

If your issues with the touchscreen are anything like this...exchange it...
My new one requires very little effort if any at all to get the screen to respond...
However, if you're talking about the once in a while miss of a touch...yes, I agree with cutterjohn....you're spoiled. Return the device asap, so I could pick it up from an outlet...please?

RavenII said:
If your issues with the touchscreen are anything like ...exchange it...
My new one requires very little effort if any at all to get the screen to respond...
However, if you're talking about the once in a while miss of a touch...yes, I agree with cutterjohn....you're spoiled. Return the device asap, so I could pick it up from an outlet...please?
Click to expand...
Click to collapse
There is a big difference between these dead spots and the occasional miss. I have no problem with the occasional miss. I just have to adjust to how my finger touches the tablet to get more consistent hits.
There are areas of my tablet that consistently do not behave like the other areas. Does that sound normal to you? I can't have a tablet where anything in the 2 corners is extremely inconsistent. If I have the tablet oriented a certain way the soft-buttons get put into one of the bad corners and that is really frustrating.
I don't think it is how I am holding it because the problem follows the physical corners and it is not relative to my hand. So that rules that out. And I washed my hands and gave the tablet a good cleaning so dirt/grease/grime is not an issue either. It could have been too clean but why only two corners?
I have many weeks to go on my 30 days so I will keep screwing with it to see if I can come up with anything that is a workaround or explains why it is happening. It is insanely fast and it's modding future looks extremely bright with such talented people. If I get fed up enough, I'll exchange it and hopefully get one with a even touch response for the whole screen or simply return it and wait a couple more months for Honeycomb tablets.

RavenII said:
If your issues with the touchscreen are anything like this...exchange it...
My new one requires very little effort if any at all to get the screen to respond...
However, if you're talking about the once in a while miss of a touch...yes, I agree with cutterjohn....you're spoiled. Return the device asap, so I could pick it up from an outlet...please?
Click to expand...
Click to collapse
Whoa. That video was pretty bad. While mine is not like that (thank God), I just tried hitting the app drawer key and it only registered after the 13th tap?!?! seriously wtf. While it isn't a "dead zone" per se, that's still pretty bad. There has to be a software fix to recify this issue with the right side of the screen. (my "L" and "delete" button are pretty bad as well).

THAT is a defective product...
I'll do another video to compare with my new one...WITH funky assed salty sweat all over the screen. Works flawlessly...

Is your model that is working well running stock firmware and keyboard?
mine is tent lite and the stock keyboard is ok. It if I try to use the alternative keyboards then I get consistent misses on key presses especially on the letter a.

I'm always tapping *constantly*, like 10-20 times on certain spots around the corners and edges of the screen, I'm about to return mine because of this.. Believe I'm still in the 2 weeks with office depot, will have to go snag the $350 one over at sears and hopefully it will come with a screen protector this time (this one I have didn't come with one, wonder if that has to do with the dead spots)..

Tough to describe display issue.

Hello all,
Recently i dropped my phone probably around 20 times in a single day. the glass got cracked deeply in the bottom right corner, only the grey portion were it has the lg logo is affected, its not even close to the actual lcd screen.
so, while the display and the touch both work absolutely fine, there is a box that takes up about 1/16th of the screen, which displays the entire screen in the same scale. if i rotate the phone sideways, then the box flips sideways. i can also drag the box to any part of the screen i like. i would post a screenshot, however it appears that i "cannot take screenshots".
I'm assuming this has to be a feature to help people who's phones have cracked screens, but i cannot find any information about it at all.
Is anyone familiar with this?

blacklight215 said:
Hello all,
Recently i dropped my phone probably around 20 times in a single day. the glass got cracked deeply in the bottom right corner, only the grey portion were it has the lg logo is affected, its not even close to the actual lcd screen.
so, while the display and the touch both work absolutely fine, there is a box that takes up about 1/16th of the screen, which displays the entire screen in the same scale. if i rotate the phone sideways, then the box flips sideways. i can also drag the box to any part of the screen i like. i would post a screenshot, however it appears that i "cannot take screenshots".
I'm assuming this has to be a feature to help people who's phones have cracked screens, but i cannot find any information about it at all.
Is anyone familiar with this?
Click to expand...
Click to collapse
Your phone does not know if it's screen is cracked or not ;p.
It's a setting that's been enabled which is for accessibility , one handed mode, or something to that effect

hyelton said:
Your phone does not know if it's screen is cracked or not ;p.
It's a setting that's been enabled which is for accessibility , one handed mode, or something to that effect
Click to expand...
Click to collapse
yeah i've checked both of them but there's nothing in accessibility or one handed mode about this feature. i might be able to post a picture of this in an hour or two.

blacklight215 said:
yeah i've checked both of them but there's nothing in accessibility or one handed mode about this feature. i might be able to post a picture of this in an hour or two.
Click to expand...
Click to collapse
It's called mini view. It's when you scroll across back, home, recent.
http://www.androidcentral.com/lg-mini-view

This seems close, however still not the same feature, I tried using mini view and nothing happened.
Here are some visuals
Sent from my LG-D850 using XDA Free mobile app

bumping for more help,
small update, if i double tap the box and drag to the top left i can make it a little bit smaller, opposite direction makes it larger.

blacklight215 said:
bumping for more help,
small update, if i double tap the box and drag to the top left i can make it a little bit smaller, opposite direction makes it larger.
Click to expand...
Click to collapse
Just perform a factory reset if it goes away then it was definitely something that got enabled in settings or an app running.

You can enable a simulated secondary display in Developer Options. Check to see if another box is ticked instead of the "None" option
Sent from my LG-D850 using Tapatalk

Sent from my LG-D850 using Tapatalk

Question Touch screen sensitivity, finger print scanner | Adjustable? Will Google fix it?

I'm coming a OnePlus 9 and I'm noticing that the screen is far too sensitive on my P7P. For example, when I click on a notification banner, it thinks I'm long pressing and presents me with the options to "Silent," "Default," and "Priority" the banner notification. I've also noticed when I swipe left or right to go back, it will count it as double as the haptic feedback is felt twice.
I didn't know until after purchasing that Pixels were notorious for having bad finger print scanners. This one is worse that my OP9. I have a screen protector to put on still, perhaps it will make it just right at that point.

Well, the finger print scanner is even worse than on Oneplus Nord. And I also have accidental long presses. I am actually quite disappointed with the phone.
One more thing that I dislike is how the navigation buttons have gaps between them. I constantly tap on those gaps and nothing happens. And if you use gestures, swiping to go back conflicts with swiping to open the side menu in apps.

I was hoping that this device was going to keep me happier than my OP9, oh well. it's still an early release. Hopefully it gets better with firmware upgrades. OP has gone down hill and that's why I'm here. If this fails, I'm going to submit to iOS (wait, did I just say that?!)
I did just put a screen protector on. I'm hoping that will kill some of the sensitivity. I went with the Milomdoi from Amazon. It was the best out of the 3 or 4 I ordered (sent back the ones I didn't did like). Installed pretty easy... despit the one small dust spec I missed in the far right corner. It'll be OK. The case almost covers it up. I'll report back if the screen protector improves the touch at all. I not hopeful though haha

You both might have some bad displays, my fingerprint scanner is far better and faster on the Pixel 7 pro than my OnePlus 9 Pro. I don't recall any issue with the touch sensitivity so far.

Nick James said:
I'm coming a OnePlus 9 and I'm noticing that the screen is far too sensitive on my P7P. For example, when I click on a notification banner, it thinks I'm long pressing and presents me with the options to "Silent," "Default," and "Priority" the banner notification. I've also noticed when I swipe left or right to go back, it will count it as double as the haptic feedback is felt twice.
I didn't know until after purchasing that Pixels were notorious for having bad finger print scanners. This one is worse that my OP9. I have a screen protector to put on still, perhaps it will make it just right at that point.
Click to expand...
Click to collapse
Try going to Settings>Accessibility>Interaction controls>Timing Controls>Touch & Hold Delay and set it to Medium.

Lughnasadh said:
Try going to Settings>Accessibility>Interaction controls>Timing Controls>Touch & Hold Delay and set it to Medium.
Click to expand...
Click to collapse
Just when you thought you scoured the all device's settings. I'll give this a shot and see what it does (so far so good). Thanks!
I re-registered my fingerprints too. Hopefully that will improve recognition.

On a same note, could someone please tell me if this is normal: https://giphy.com/gifs/COEoRqIfJdhpWTxoKC
When I adjust the brightness and leave the touch input for a bit, the slider goes all over the place. It's pretty annoying and doesn't seem that the slider should act this way.

anqry said:
On a same note, could someone please tell me if this is normal: https://giphy.com/gifs/COEoRqIfJdhpWTxoKC
When I adjust the brightness and leave the touch input for a bit, the slider goes all over the place. It's pretty annoying and doesn't seem that the slider should act this way.
Click to expand...
Click to collapse
Didnt noticed until now , does the same on mine.

Kalaskas said:
Didnt noticed until now , does the same on mine.
Click to expand...
Click to collapse
The reason you didn't notice is that like almost everyone, you don't let your finger linger on the slider, but slide it to where you want it and let go

Nick James said:
Just when you thought you scoured the all device's settings. I'll give this a shot and see what it does (so far so good). Thanks!
I re-registered my fingerprints too. Hopefully that will improve recognition.
Click to expand...
Click to collapse
Now tap and hold is too long when on medium. Why wouldn't they have this adjustable in ms instead of three preset options.

The fingerprint reader has been perfect for me (so much better than on the 6 Pro) but I agree about the screen sensitivity. It's too sensitive.

Nick James said:
I'm coming a OnePlus 9 and I'm noticing that the screen is far too sensitive on my P7P. For example, when I click on a notification banner, it thinks I'm long pressing and presents me with the options to "Silent," "Default," and "Priority" the banner notification. I've also noticed when I swipe left or right to go back, it will count it as double as the haptic feedback is felt twice.
I didn't know until after purchasing that Pixels were notorious for having bad finger print scanners. This one is worse that my OP9. I have a screen protector to put on still, perhaps it will make it just right at that point.
Click to expand...
Click to collapse
Absolutely zero issues with the fingerprint reader here, I find it just as reliable and even quicker than my S21 Ultra and that is with a protector.
I suggest it's either a bad screen protector install (air bubbles around the fingerprint area would cause havoc with it) or maybe it's just not a good protector for use with an optical scanner.