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Screen sensivity problem solved!!!!

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#21
balles

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Thanks. Screen calibration is very important. I agree. Can you share your calibration data?

In local_macine>Hardware>Devicemap>Touch>calibrationdata

there is five pairs of numbers represeting (X,Y) values of the five spots you pressed during calibration.

Could you share that with us? It is a matter of copying and pasting these numbers to duplicate your accurate calibration. Simple!

Thanks.


Thanks for pointing out to the registry values.
I have created a .reg file that you can edit if, as me, you want to be able to recover the calibrating parameters after hard-resets.

Attached Files


Edited by balles, 14 November 2008 - 10:05 AM.

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#22
Motofone

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Ok have been playing around with reg settings...

Now I don't know max settings i may have exceeded them but have been going up and down and found these to make noticeable difference.

My original settings were
Click=1280
Updown=256

[ H K E Y _ L O C A L _ M A C H I N E \ \ H A R D W A R E \ D E V I C E M A P \ T O U C H ]

" C l i c k " = d w o r d : set to 2000

[ H K E Y _ L O C A L _ M A C H I N E \ \ H A R D W A R E \ D E V I C E M A P \ T O U C H ]

" D o w n U p " = d w o r d : set to 750

soft reset required


Touch and scrolling seems improved.....

see what you think / find?...

edit: I re calibrated and none of these settings changed so it appears that maybe calibration just sets the accuracy of the touch to the pixel area.

I have quite big fingers and this calibration method does allow the selection to be a lot more accurate.

Edited by Motofone, 14 November 2008 - 04:38 PM.

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#23
eRoS08

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Excuse me people but I've to say...
Put this in your heads: That doesn't improve sensitivity, (MAYBE) only calibration!!

That's right:

edit: I re calibrated and none of these settings changed so it appears that maybe calibration just sets the accuracy of the touch to the pixel area.


Hey I'm gonna tell you a secret method to improve sensitivty:

Open your phone and replace the damaged screen for another one. B)

Edited by eRoS08, 14 November 2008 - 06:39 PM.

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#24
Michael122w

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Excuse me people but I've to say...
Put this in your heads: That doesn't improve sensitivity, (MAYBE) only calibration!!

That's right:
Hey I'm gonna tell you a secret method to improve sensitivty:

Open your phone and replace the damaged screen for another one. B)


Thanks for your comments - your insight is simply astounding. Your belief that the very frequent comments that the omnias screen sensitivity is only relate to a hardware flaw is disturbing (if this was the case samsung would have released a defective product and virtually every omnia would need to be returned). We already know that there i a software dimension as the later ROMs are much better at detecting screen events than the earlier ROMS.

My understanding is that there are 4 elements which must be integrated to correctly for touch screens to work:
1) calabration (matching the xy coordinate with where you touch)
2) sensitivity (weight before a touch is recognised)
3) periodic changes (the size of change and period before a movement is recognised eg swipe v press)
4) the degree of error assosciated with interpreting the calibration data (finger v stylus)

I am feeling pretty good about the sensitivity of the Omnia screen when I use a stylus. I think Kordi's method helps optimise the results of the calibration process.

@Motofone: I have tried those settings in the past - as on the surface they seemed to align with my expectation of the full suit of elements (ie click=weight, maxcallerror = degre of eror, updown - periodic change) but I cant find any values which give me a noticable change in sensitivity B)

But it seems that Samsung have been tailoring the device the stylus when it was sold to us as a "finger frendly device" - this only seems to be true if you have plastic pointers for fingers (but might make an interesting movie...... Edward Stylus-Hands). Now that samsung has figured out how to get it working properly for stylus navigation - hopfully they will put down their pointers and get it working for our fat fingers.

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#25
ivanxxx

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Hey I've learned something new in this topic.. The protection layer !! Is it the real guilty for bad accuracy of finger sweeping actions?? If it is so can I remove it or is there a way for modification ?? I am dying to have a screen like IPHONE = a finger touch respondent one !!!

Any idea ??

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#26
zagzag99

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Hey I've learned something new in this topic.. The protection layer !! Is it the real guilty for bad accuracy of finger sweeping actions?? If it is so can I remove it or is there a way for modification ?? I am dying to have a screen like IPHONE = a finger touch respondent one !!!

Any idea ??


The protective layer is the glass on top of the screen, if you'd like to remove that be my guest, it's just a matter of breaking up the phone and exposing the display. (You can see the screen is about 2mm below the glass)

Unfortunately IPhone screen you won't get ever (unless you buy an IPhone).
From what I gather Apple has the patent for such screen technology on cellular, so until the patent period finishes you won't see such on
other phones. The technology is that the screen identify your finger by the static current it holds (static electricity on each finger is different so you get multi-touch).
Omnia and other devices have touch screen that works on pressure.

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#27
DaX-Mobile

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I re-calibrated the screen using Kordi's method. My experience .... IT MAKES A DIFFERENCE !!

Thanks for sharing.

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i900 32gb iPhone 16gb N95 8gb HTC Touch

#28
eRoS08

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Your belief that the very frequent comments that the omnias screen sensitivity is only relate to a hardware flaw is disturbing


Of course, I'm sure that the frequent comments with screen sensitivity is related to a bad hardware design. When so much people complains about one thing, problem is in design. Problem is in phone design or touch screen design, I don't know, but you can't fix this.

The only thing you can do is does not make it work worse (optimize, as you said). If you have a good calibration and a bad sensitivity too (like me)... there is nothing to do. If the problem would be in calibration, then, other windows mobile devices should be the same problem. Actually, not.

PD: Omnia isn't finger friendlly, it's fingernail friendly B) (at least mine, I don't know yours)

Edited by eRoS08, 15 November 2008 - 01:14 PM.

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#29
kordi

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If the problem would be in calibration, then, other windows mobile devices should be the same problem. Actually, not.



As far as calibration is concerned, this is very OMNIA exclusive issue. I explained why in the first post.

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#30
lastnikita

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I'm sure that the frequent comments with screen sensitivity is related to a bad hardware design. When so much people complains about one thing, problem is in design.


This is non-sense. As an exemple many people complained about the freeze-during-standby bug, and it was a software thing since it's now solved with newer rom builds.
Also, J1 brought a much better screen sensitivity. Maybe the screen design is not the best available, but it definitely can do the job just right.

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#31
ivanxxx

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The protective layer is the glass on top of the screen, if you'd like to remove that be my guest, it's just a matter of breaking up the phone and exposing the display. (You can see the screen is about 2mm below the glass)

Unfortunately IPhone screen you won't get ever (unless you buy an IPhone).
From what I gather Apple has the patent for such screen technology on cellular, so until the patent period finishes you won't see such on
other phones. The technology is that the screen identify your finger by the static current it holds (static electricity on each finger is different so you get multi-touch).
Omnia and other devices have touch screen that works on pressure.

Himm O.K. but the top layer looks something like plastic and it goes in with pressure and, it is floating as it is said before like 1mm or less.. I thought it is a protection against scratching not breaking. And generally screens including touch sensing ones have protection layers strictly combined with the real screen.

I dont know if top - soft layer has something special to do with stylus actions but I have a Samsung YP-P2 which is a touchscreen PMP, it has a solid hard screen with better sweeping action response. It is interesting, both samsung.. 

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#32
sector

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lol i cant believe it but it works better than before B). i even have screen protector on top of my screen ( http://www.martinfields.com/ ), very thin and good protection for screen and camera.

almost perfect B)

Edited by sector, 15 November 2008 - 05:40 PM.

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#33
Kendle

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The screen will never be as good/sensitive as an iphones, as it has a capacitive screen, whilst the Omnia uses a resistive screen.

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#34
David Cher

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i love the omnia with all these customisation

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#35
Tatou26

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The screen will never be as good/sensitive as an iphones, as it has a capacitive screen, whilst the Omnia uses a resistive screen.


I don't think so. HTC Diamond is really finger sensitive, with the same screen. All the Touch Generation of HTC has this capacity.

There is probably something we don't understand, or HTC has modified his screens.

Maybe this is the TouchFlo Technology with an hardware upgrade.

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#36
112

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when calibrating touch gently with the stylus and wait to cursor move..
i worked for me

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#37
Asaya

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I changed the settings in the registry with the values given by motofone and its works great!Thank you very much!

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#38
Emre SUMENGEN

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From what I gather Apple has the patent for such screen technology on cellular, so until the patent period finishes you won't see such on
other phones.

It's actually not correct, as the first Android phone, the T-Mobile G1 has a capacitive touch screen, just like the iphone...

The technology is that the screen identify your finger by the static current it holds (static electricity on each finger is different so you get multi-touch).
Omnia and other devices have touch screen that works on pressure.

Correct about the capacitive screen technology but not very so about multitouch.

I don't think so. HTC Diamond is really finger sensitive, with the same screen. All the Touch Generation of HTC has this capacity.

There is probably something we don't understand, or HTC has modified his screens.

Maybe this is the TouchFlo Technology with an hardware upgrade.

Actually, it's not a matter of belief or thought... Diamond might be more sensitive, the others may not. But, as hardware, iphone is way better in "sensitivity" than current WM phones. Omnia's sensitivity change with ROM, as it is the software that interprets signals, but there is always a hardware limit. Pressure sensitive screens cannot feel the lightest touch that a capacitive screen can.
I wish Omnia did have the iPhone's screen, solid, sensitive and bright. (Did you try looking at it under direct sunlight? Don't bother, you won't see a thing) B)

Edited by Emre SUMENGEN, 20 November 2008 - 09:02 PM.

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#39
previa

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when calibrating touch gently with the stylus and wait to cursor move..
i worked for me



Yes, with same result to my omnia .its work B)

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#40
r6dy

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Yes. The screen accuracy has improved a lot with kordi's method of calibration. Thanks.

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