Database Develop

gentle touch

touchscreens come in verious flavours
the ones our pda have with the coating
wacomm active digitizers which only respond to the pen mostly used on tablet pc's in the high price range
hp have a sensor detect system for their kitcten pc which also seem to work fine and support multitouch like iphone
read about a new tech where the screen itself is a sort of webcam so it can detect touch's and respond to them in kind
said the screen itself could even be used as a scanner
wonder what tech will show it's face in the htc phones to come ...
p.s. wacomm is good for drawing fake rembrandts but poor if you like to click by using headbuts

I don't have the link for it, but I saw this clip on another PPC forum where describing a "two sided" touch screen.
Basically the idea is this: when you use your fingers on a touchscreen you obscure part of the data. So they use a camera on the back of the device plus movement recognition software to see where your fingers are (if you were holding your PPC like a game controller with only thumbs in front of it) and project a shadow of your fingers on the screen.
As if the screen was "see-through".

I tricked my friend into thinking that the mousepad on my laptop was also a scale. Would be pretty cool if the screen on a ppc could weigh small measurements. That way I'd never get chinced again when picking up herb

Screen sensativity.

So my only complaint so far is the screen sensativity.
I know this doesnt use a capacitive screen, so it needs physical pressure, but it seems to me the glass on the top of the screen makes it need alot more pressure than i'm used to. The middle of the screen seems to be more sensative, and the outside less sensative.
You can test this by putting your finger down on HOME in touchflo, then scrolling to programs and back again. If you pres hard, it will go back and forth. If you use less pressure at home and programs it will load the programs or home screen, as if you released your finger.
So i know there's two reg keys for this:
HKEY_LOCAL_MACHINE\Drivers\TouchPanel
By doing a screen slignment and pressing hard with the stylus i get a lower value here, and by pressing lightly i get a higher value here.
So high value = detects lighter press, low value - needs harder press
HKLM\Software\OEM\TFLOSettings\fingurepressure
This i'm confused about. I tried setting it to 0, 2, 14, 200, 255, 600, and there's not noticable difference as far as i can see.
Is there some sort of program that can read the the pressure from the screen and display it? This would help make the tests alot more scientific!

Someone posted this tip in the tips and tweaks thread above...maybe useful to you??
One tip for changing the sensitivity if you don't want to mess around in the registry:
- run the Align Screen setting (under Settings/System/ Screen)
- when you press on the 'targets' with the stylus, use VERY light pressure...just enough that the tap is accepted
- I usually tap a few times on each target, starting too lightly, and then gradually increasing the pressure until the tap is taken
- do this for each of the 5 targets
I found this seems to make the Diamond calibrate a higher sensitivity for its touch-screen, so finger touches can be much lighter.
This is probably a safer way to change the sensitivity, as you don't risk putting an invalid number into the registry.

Thanks, i already tried that.
Can someone tell me their value for this key?
HKLM\Software\OEM\TFLOSettings\fingurepressure

Screen sensitivty
Spawn12 said:
Someone posted this tip in the tips and tweaks thread above...maybe useful to you??
One tip for changing the sensitivity if you don't want to mess around in the registry:
- run the Align Screen setting (under Settings/System/ Screen)
- when you press on the 'targets' with the stylus, use VERY light pressure...just enough that the tap is accepted
- I usually tap a few times on each target, starting too lightly, and then gradually increasing the pressure until the tap is taken
- do this for each of the 5 targets
I found this seems to make the Diamond calibrate a higher sensitivity for its touch-screen, so finger touches can be much lighter.
This is probably a safer way to change the sensitivity, as you don't risk putting an invalid number into the registry.
Click to expand...
Click to collapse
Tried that, and its really works. Thank a lots.

someone1234 said:
Thanks, i already tried that.
Can someone tell me their value for this key?
HKLM\Software\OEM\TFLOSettings\fingurepressure
Click to expand...
Click to collapse
the value is 19 in uk device rom.

vijayvasa said:
the value is 19 in uk device rom.
Click to expand...
Click to collapse
19 decimal?
I've just about had enough of this touchflo.. pretty but soooo anoying to use
Today on about 3 ocasions i was navigating through it and got a call.. the lights on the touch wheel were flashing and it was playing the ringtone, but the whole phone was frozen for about 4 seconds. Eventually the call popped up and i was able to answer!
I think i'm going to diable it and do my best to make the rest pretty.

You just have to be patient...the roms are not mature yet...
In 3 months you'll see that Diamond will be the best phone out there
I also am trying to find out the best way to configure the finger sensitivity.
HastaSSSS

s1rl4ncel0t said:
In 3 months you'll see that Diamond will be the best phone out there
Click to expand...
Click to collapse
yeah but 3 months is a long time... i have to do something to stop myself smashing the phone on the floor on frustration!
for now i'm going to disable touch flow, and i'll come back to it when a new rom comes out.

Have you tried the new rom 1.37.XXX ?
Bye

I have a UK diamond.. so it came with 1.37.405.1

I've just done the "light tap" trick, and now it's perfect...
Could it be that you have a defective device?
Bye

Its better with that 'trick' but still anoying. I have a feeling i'm just too used to a capacitive screen.
The wierd thing is with the light tap the key HKEY_LOCAL_MACHINE\Drivers\TouchPanel ends up back to 30 to 50 decimal.

i only bought it today yet im seriously thinking of taking it back. The iPhone is just the better product, and always will be, unless Microsoft and the software developers get as passionate as those at apple.
Its Laggy
Its un-intuative
The touch screen isnt as sensitive as it should be. (why are they still using resistive touchscreens)
And the opera browser isnt all that either, it doesnt redraw quick enough for the full page display thing to really be all that impressive on zoom in/out and leaves chessboard squared at it struggles and chuggs to redraw.. . .not great, not when the comptetition is as good as it is. . . . .im thinking 3G Iphone, ****ty camera or not.
Loose the 6.1 and stop trying to polish that turd with TouchFlo's. Yeah good effort, but it just aint good enough
J

WM is just a huge resource hog. The touchflo is slow because its a plugin for the today screen, which then calls on windows API's to draw onto the screen.
Its such a long long way round to get to the hardware that its just slow no matter how well u code.
I just hope someone ports android to the diamond, because the hardware is amazing, the OS is a pile of ****!
BTW they use resistive touchscreens to have increased touch resolution. Also a stylus wouldnt work with a capacitive screen.

I prefer to work with resistive LCD than capacitive...
The capacitive have better sensibility, but are less precise...
Although the Diamond LCD is not as sensitive as a capacitive, it's sensitive enough to work well with the fingers...
It's just a matter of tweaking.
HastaSSSS

Resistive screens use a grid of conductive material, sandwitched between the glass and a conductive layer. They alternatly pass an electrical current on each line of the grid along the x and y axis. When you press the screen you touch this grid onto the conductive layer and the current passes through it, which is detected. You can make resistive screen that have a very high resolution of detection, and the resolution is always what you design it to be.
Resistive screens are pressure sensative, and by design can't handle multi-touch.
Capacitive screens use glass coated with a conductive coating. The edges of the screen are connected to conducters. Each conducter has a different frequency oscilator connected.
The capacitance of a human finger changes the impedance of the screen, and so changes the frequency of the oscillator circuit. This gets converted to distance from each oscillator and so a co-ordinate.
The resolution is limited by how acuratly you can detect changes.
Typically in electronics very small changes are hard to measure because they are indistiguishable from noise.
Capacitive screens can handle multi-touch, but the resolution of each touch is decreased in that case.
Capacitive screen resolution is not absolute and can change with increased noise in the system, or by multiple capapcitive effects on the screen - like multiple touches.

[Q] Screen sensitivity

I am not sure whether it is my mind playing trick with me or not, but I feel like my phone is less sensitive after I did the hard reset (power+volume down). Sometimes I need to press 2-3 times because the first light tap was not detected.
So is there anyway to increase the sensitivity?

I have the same problem, but no idea that is the hardware or only software problem.....

Fresh owner of this Optimus 2X in France, in our community, frandroid.com, we encounter the same problem , I think this is a software issue.

Did someone already contact LG??

Maybe they should include this into the bug list thread.
May I know were you guys having this problem since it is out of the box? or after reset?

I have the same problem started from day 1 till now

I have the same issue and already thought I'd be the only one having this problem.
I would not say it's a problem with sensitivity, but it feels like the touchscreen goes into some kind of sleepmode where then you need to press a second time, to wake it up.
Continuous touching is no problem. (like when typing rapidly on the keyboard)
This video is not from me, but it shows the problem.
Have a look at 13:28 and 13:37. The reviewer tries to hit the "Ackermann" entry, but the touchscreen does not recognize the touch. At 13:37 the guy has to press another time to get the entry selected.
http://www.youtube.com/watch?v=VRid-Yhu7Gg&feature=player_embedded

Yes! The touchscreen is definitely less sensitive than my old HTC Hero, and gets quite frustrating sometimes when a scroll misses the first part of the movement or a click is missed.
Sent from my LG-P990 using XDA App

just in case, are you guys using 20110218 baseband too?

The same problem here. If I unlock the screen and then tap on any on screen apps, I need to touch again for it to open. Only the first time though, after that it function ok. I think this is a bug and needs to be fixed... I have my pc for double-click.

Yep, count me in. Same problem here. Sometimes screen taps aren't registered. Will do some research later on, but I think it's a software problem. (maybe you have to tap 2x as fast )

Hi,
same problem here!

Potentially a driver issue. A Nexus S user had a similar issue in this thread: http://forum.cyanogenmod.com/topic/18431-tuning-driver-to-deal-with-unresponsive-touchscreen/
He managed to tweak the driver and it works fine now. Need to know C++ (I think?) to understand though.

9mmBullet said:
Potentially a driver issue. A Nexus S user had a similar issue in this thread: http://forum.cyanogenmod.com/topic/18431-tuning-driver-to-deal-with-unresponsive-touchscreen/
He managed to tweak the driver and it works fine now. Need to know C++ (I think?) to understand though.
Click to expand...
Click to collapse
I see, then probably they will fix it on the next update/gingerbread?

Same issue here.

Correct me if I'm wrong, but the problem seems to be that the screen has zero tolerance when it comes to tapping and swiping together. If you tap and slide your finger a bit directly after the tap, the tap is ignored. In other words your tap has to be a steady tap when you click on a button or an app. Right on the spot and with no swiping or sliding afterwards. I can't reproduce this on any of my other devices.
Ergo, it seems that the natural tapping I'm used to isn't working on the x2. It seems like I have to adjust my tap. I think that this could in principle be solved with a setting somewhere, because clearly the x2 is capable of registering this in for example a web page.
The great thing of this is that you can safely tap and swipe in the app drawer to scroll up and down or left and right. The downside is that a tap with a little swipe isn't registered at all. I would say that LG has choosen here for a wrong setting.

My personal experience about screen sensivity.. can you confirm if it's the same for your device?
I noticed a strange touch response.. and after some tests, I can say that the touch screen and icons are influenced by the surface where the phone was put!
with the phone in my hands, it's all ok (only sometimes - rare - I need to tap more than once).
If I put the phone over a glass surface (like a glass table) without touching it with both hands, the touch and the icons not respond!! NEVER!
If I put the phone on my scanner the touch screen works ok, but the icons not (or only few and rare taps was detected).!
If I put the phone over my big Onkyo amplifier.. It works like in my hands.. or better!! even without touching with hands.. only with a finger!
Put it back on my glass table.. and all stop working again. If I put a aluminium foil under the phone (between phone and table).. the touch and the icons works again !!
If I put it on the bed.. it don't work.
LG support say that they have tested the phone about this issue after my report.. but no strange response was detected by them. I don't know if they really tested it..
Try it and let me know what you think about!

tested on glass surface, I can press and swipe through pages with a finger without problem.
it is true that my device is not so responsive, but aint reaching that level yet

i read about a similar behaviour on other devices because some devices need a proper grounding for the capacitive screen to work correctly. You can find this problem via google.
Some devices have problem in a car-mounting, for example.
But i think thats not the problem the thread-opener talked about?

Guys I'm looking to get this phone and after reading Engadgets review of the X2 where they mention that the screen is not as sensitive to the touch as other phones I got a bit worried and started googling which lead me here!
Is this true? The screen isn't very sensitive and you have to apply more pressure than other capacitive phones?
I know that the OP is talking about a different issue but I reckon LG will get that sorted out via software update, or at least hope so!
Please do post your experience about the screen sensitivity of the X2 as this is putting me off. I currently have the Motorola Milestone 2 which is very sensitive to the touch even with a screen protector on it.
Cheers

Multi touch screen grounding issue

Hi all,
I have a problem with my phone. When I put it on a material that has good electrical insulating properties, for example on a couch and try to use two or more fingers, e.g. zooming in - zooming out on a picture, the touch sensing of the screen blocks and becomes not responsive. One finger is always sensed but 2 or more fingers are sensed only for a short time or not at all. The more fingers you put on the screen the easier is to make it stop sensing your fingers.
This behaviour is more obvious when you repeatedly move your fingers inward till they touch and outward again.
When multi touch sensing blocks, one way to make it work again is to touch with one finger of your other hand the hull of the phone, e.g. the charging socket of the phone, making in this way a kind of grounding.
For visual demonstration you can use a multi touch sensing app, such as MultiTouch or other similar one.
The problem never occurs when:
- phone is handheld
- it is charging
- it is lying upon a not so good insulator, e.g. on a wood or a whasing machine.
I have made some videos that illustrate the problem:
vimeo.com/300242218
vimeo.com/300242398
vimeo.com/300242502
The strange thing is that I sent my phone to Nokia for repair and they exchanged my phone with a new one which however exhibits the same problematic behavior. This led me to think that many of Nokia 7 plus may suffer from this problem.
Could anyone else please confirm that he/she has the same problem with their phone or not?

How To Guide Tips on setting up fingerprint scanner

I've seen too may YouTube videos with people complaining about the fingerprint scanner not working great, and when I watch their setup of it, they just spam their finger on the setup screen. You cannot do that. Each time you register a fingerprint it asks you for a specific way to touch the screen. For example when you start you press your full fingerprint on the screen, but then it changes. It asks you to press just your fingertip. then your left side of your finger, and then your right side. It needs to register all angles, and if you just spam your basic fingerprint you will have issues.
Slow down, and read what it is asking. If you are having a mixed experience with the fingerprint scanner try to redo it following what they ask when doing so.

bobbyphoenix said:
I've seen too may YouTube videos with people complaining about the fingerprint scanner not working great, and when I watch their setup of it, they just spam their finger on the setup screen. You cannot do that. Each time you register a fingerprint it asks you for a specific way to touch the screen. For example when you start you press your full fingerprint on the screen, but then it changes. It asks you to press just your fingertip. then your left side of your finger, and then your right side. It needs to register all angles, and if you just spam your basic fingerprint you will have issues.
Slow down, and read what it is asking. If you are having a mixed experience with the fingerprint scanner try to redo it following what they ask when doing so.
Click to expand...
Click to collapse
Exactly. I saw one video where the reviewer wasn't even getting the finger properly on the scanner & not even giving it a sec to register & then goes on blabbering that it's not working.

Man, I've redone mine plenty of times and have followed exactly what it says, but mine works maybe 2/10 times. But I don't care too much about fingerprint. Face unlock works great though.

When the icon is moving, during fp registration, which part of finger i need to scan? It start in the center then it's move to the right down a little and then same but on the left, during this phase i don't really understand which part of my fp i need to scan. I hope I explained well
EDIT: just found this for anyone is interested:
Unlock your Pixel phone with your fingerprint - Pixel Phone Help
If your phone has a fingerprint sensor, either on the display or on the back of your device, you can use your fingerprint to unlock your phone, authorize purchases, and unlock certain apps. Important
support.google.com

If I remember correctly you do each like four times. Full press, tip, left side, right side. It will ask you to move your finger around during each one. Like for the first one press your full fingerprint in the center of the circle. Then a little to the top, then bottom, then left or right.
What it's doing is trying to capture as many angles of each try all over the unlock area to prevent you having to try it over and over. If it saves your touch in four different places on the fingerprint scanner surface then you don't have to try to press exactly in the middle.
After registering your fingerprint it should have about 16 different angles saved for your one finger. You can save up to four fingers all together.

I've deleted all my saved fingerprint and registered them all correctly. Now its working ALWAYS. It's all there, just to follow accurately the on-screen instruction to setup proper fingerprint(s)
Nice

Anecdotally mine has been working much better than my Pixel 6 was.

I wasn't sure why people were hating but this makes sense. Has been working great for me; all I had to do was read the instructions

I have followed the instructions very carefully, to the letter. And still, 3/4 times the fingerprint scanner does not work. And I did not have a screen protector on, either.
I had Samsung Galaxy S20 and now I have a Pixel 6, and on either phone, the fingerprint scanner works quite reliably.
I admit that I may have a faulty unit, but too many people are complaining about the very same problem, so it isn't just a few users who can't comprehend instructions.

Does the icon move when you register your fingerprint? I recall it was moving once I enrolled my fingers for the first time, now it sets still.

yaatzek said:
Does the icon move when you register your fingerprint? I recall it was moving once I enrolled my fingers for the first time, now it sets still.
Click to expand...
Click to collapse
Yes, it was moving all over when setting the fingerprint scanner.

I mean I had this moving icon only for the first time, it didn't show up ever after this.

My tip is: If you have issues with a specific finger just register it more than one time.

I wasn't pressing high enough on the screen for the angle I hold the phone. Also pressing lightly helped. Working 80-90%

I've registered the same thumb for all 4 profiles and it still only works like 2 out of 10 times. I know I've been doing it correctly from the beginning! It seems like it works great for the first 30 minutes right after registering the print, after that it gets worse every time I use it.

Is there a way to add more than 4 fingerprint?

I am really disappointed with the Pixel 7 fingerprint and face unlock. They are the worst; even my older Pixel 4 has a better face unlock. It heats while charging and even the battery life is decent, it is running on the latest March 2023 update!

bobbyphoenix said:
I've seen too may YouTube videos with people complaining about the fingerprint scanner not working great, and when I watch their setup of it, they just spam their finger on the setup screen. You cannot do that. Each time you register a fingerprint it asks you for a specific way to touch the screen. For example when you start you press your full fingerprint on the screen, but then it changes. It asks you to press just your fingertip. then your left side of your finger, and then your right side. It needs to register all angles, and if you just spam your basic fingerprint you will have issues.
Slow down, and read what it is asking. If you are having a mixed experience with the fingerprint scanner try to redo it following what they ask when doing so.
Click to expand...
Click to collapse
Followed instructions to the letter about ten times for each monthly release. I've tried registering finger multiple times, various pressures, and all the other published tips. After registering, per the instructions, I've consistently gotten about 25% with a dry finger and 80% with a moist finger. The FPS simply stinks for lots and lots of us.