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Recently I added a screen protector to my Alpine, and after that the screen started acting funny any time it was left alone. Removing the screen protector has made no difference.
After a short while of not being used, the screen becomes misaligned, for example if I leave it off for an hour, attempting to activate the start menu on the today screen will result in one of the today items being pushed, or attempting to select a number on the password entry will result in a different number being pressed.
The strange thing is I can re-align the screen through the control panel, but it will slowly go back to the way it was.
Anyone got any thoughts? At worst, I'll just refund it (I bought it where I work, and thats no problem) and get another handset, but if theres a fix I'd prefer to stick with my current handset.
Cheers in advance for any help!
I am not sure about this, but I had the same problem with Motorola A1000 touch screen - could it be that an excessive pressure was applied to one of the sides of the digitizer during the application of screen protector? The digitizer is glued on the LCD, there might be a remote chance that it has slid a little to one side. Also some extra glue could have shortened the contacts on the bottom part of the digitizer. I would try to clean it first with some anti-static liquid. Hope this helps..
Indeed, this sounds like there could be more pressure to one side of the screen than the other, hence the digitiser tries to adjust for the pressure difference and gradually falls out of sync.
Try reapplying your screen protector, more gently than last time if possible, but don't wipe from side to side, wipe from top to bottom with an even pressure. Also, try realigning the screen with the protector off before reapplying it.
I had a problem with my screen originally before I got my screen protector, insofar as I got that 'rainbow' pooling effect in the centre of the screen where the digitiser was touching the LCD layer - after about a week after application of the screen protector, however, the more even layer of tension provided by the protector somehow pulled the digitiser away from the LCD layer, so my screen has actually gotten better since then... That said, I could imagine that uneven tension on the top layer could lift the LCD and digitiser layers further away from each other on one side than on the other, causing the problem you describe here. If you can bear to, try using the phone for a couple of days without the protective top layer applied, and see if the alignment gradually slips out as it's doing at the moment.
I've been using the phone for the past two days without the protective cover on. I'm going to reapply it now and then see how it goes tomorrow. If its still screwed, I'll reflash it to the O2 ROM and refund it at work on Tuesday.
Got a replacement, so no problem now. Thanks for the help anyhow
This is something i noticed with my device, the screen protector iv had it on ever since i got my mda vario III, today i removed it cose there was dust collecting at the edges of the screen where it couldn't reach as its smaller than the screen then i notice the device was performing alot faster to make sure i wasn't just seeing things i tried playing a game of FPSEce before all were really slow average 10fps when actually playing now i get it around 20fps the game was actually playable not perfectly of course but still alot better. Again this is a possible effect of the lack of drivers if we get screen protector companies on your side who knows i mean who would buy one if it slowed down their ppc which would lower their business.
Lol , the only conclusion i can give you is that your screen protector was actually continuously pushing the touch screen somewhere.
Resulting in the ever lasting htc touchscreen driver bug eating cpu cycles.
You can always check this with an app that shows cpu usage.
RacerII said:
Lol , the only conclusion i can give you is that your screen protector was actually continuously pushing the touch screen somewhere.
Resulting in the ever lasting htc touchscreen driver bug eating cpu cycles.
You can always check this with an app that shows cpu usage.
Click to expand...
Click to collapse
Batterystatus used to show it as low
The screenprotector does not weigh enough to be able to create a force large enough to activate the screen.
Here is a different theory: the screen protector does not let heat to diffuse through the screen, outside. Hence, the device become warmer, and the CPU throttle down...
Noam23 said:
The screenprotector does not weigh enough to be able to create a force large enough to activate the screen.
Here is a different theory: the screen protector does not let heat to diffuse through the screen, outside. Hence, the device become warmer, and the CPU throttle down...
Click to expand...
Click to collapse
It does if it goes under an edge... my touch stopped working, cause it got slipped under the edge and therefore was exerting force on the screen.
this is impossible because our screens are only single touch, if it was always being pressed then that means the press from out finger or stylus wouldnt work or it wouldnt press most of the time. you would find it very messed up. havnt u ever tried pressing in 2 places on the screen with a paint program or drawing just for fun?
i could see the screen protector "pressing" on the screen if it was stretched or shrunken.
however, have you ever taken a ball point pen and tried to write on a stack of papers? you eneded up with a clear "dent" on the second page, but a barely visible "dent on the third. the screen protectors make the screen less sensitive because it's just another layer. try doubling the sensitivity in your registry from 7000 to 14000 and see if it helps a little. (or the oil from your skin will eventualy collect enough dust, that if you do any heavy literary work on your PPC; you will surely wear out your screen)
I have a couple of light scratches on my screen from drawing; so i prefer the screen is less exact, but protected.
(keep in mind you create friction when you run plastic on plastic; and friction creates heat, brazing the tip of your stilus, ocasionaly making it sharper than it should be.)
I suppose thats how I see it.
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.
Hey everyone,
since 2 or 3 months I've got an HTC Kaiser. I really like it, it is equipped with an TF2D integrated ROM, so far everything nice
But as you can see in my device history, I formerly got an HTC P4350, these one was terribly slow! But it had one thing which was a thousand times better than my Kaiser:
The Touch screen was accurate. When I'm working (or whatever) with my kaiser, I sometimes have to tap 5-6 times on the screen until I reach my destination due to the bad touchscreen accuracy.
I tried also a screen allignment but it had no positive effect, it is for alligning the screen and to set the required pressure but thats not what I'm searching for.
I need a screen on which it tap while using Icontact for example and with which I am able to hit the contact which I prefer (and the buttons are really big and not all other ones around... But usually I have to tap several times to reach my destination.
This occurs even a little more whilie using it without a stylus.
And also i think the lowest accuracy is located in the center of the screen. So anyone has an Idea how to solve this matter?
Is a new LCD helpful?
When I used my bosses phone the accuracy was also very low - maybe it is a general problem for the Kaiser? (He has also an HTC Kaiser)
I don't know - so is anyone able to help me with that matter?
Best regards,
Maeffjus
are you using a screen protector?
if so, try removing the screen protector and then check the accuracy.
if the accuracy improves after removing the screen protector, then you can either use the phone without the screen protector or buy a brand new screen protector.
finally, try cleaning under the edges of the frame of the screen with a thin piece of cardboard or a rigid plastic sheet.
No, I'm not using a protector...
I'm often cleaning the screen edges with business-cards (otimal solution *lol*)
The screen was equiped with a protector when I bought the phone but I removed it immediately.
And also the accuracy is bad on my bosses Kaiser...
I have a D5803 that came back from being serviced. The touchscreen went bad, so the whole assembly (screen + sensor) was replaced.
Since you have to almost completely disassembly the phone to get to the screen, I suspect something went wrong during the repair.
The screen is flickering at random. By flickering, imagine a bad fluorescent lamp: you can clearly see the brightness varying vary fast, causing a flicker effect. Also, imagina a CRT screen. The flicker stops when you refresh the screen, like cycling through the home screens of your phone.
The guy who repaired it said it is a bad resistor that controls the current going to the panel's backlight. His excuse is that the board is very thin and fragile and that something might happened during the repair service. He also said that if he tries to do something else, the problem might get worse/something else might break. I suspect the screen installed is not OEM and is of bad quality. Sometimes the screen keeps autopressing as if someone was actually touching the screen, but not. Wiping the screen down on soft clothes (cleaning it) solves the problem. The screen probably doesn't have an oleophobic coating.
So, my question is: Is this guy right or is he lying (trying to push me ****ty parts/service)? How to know?
Also, is it possible to have a slightly smaller sized screen part? Because it feels that the screen area has decreased a bit (bezel increased somewhat). But since I do not use this phone since almost two years ago, I might be imagining things.