I have a rooted 2013 N7 running 5.0.2 that I recently installed in the dash of my car. During normal (handheld) use my touch screen works OK though it does have some periodic difficulties as seems to be common with this unit. However, when I mount the tablet in my dash, the touch screen is almost completely unresponsive. The tablet is mounted behind my stereo trim bezel so that there is plastic trim piece in contact with the full perimeter of the front glass. I believe the trim piece does not overlap with the LCD screen. Even so, I am assuming this is screwing with the touch responsiveness. When there is a little pressure on the edges of the screen - most of touch is unresponsive. Has anyone run into this problem? Ideas, insight, links to other threads are very appreciated. Thank you.
theburden said:
I have a rooted 2013 N7 running 5.0.2 that I recently installed in the dash of my car. During normal (handheld) use my touch screen works OK though it does have some periodic difficulties as seems to be common with this unit. However, when I mount the tablet in my dash, the touch screen is almost completely unresponsive. The tablet is mounted behind my stereo trim bezel so that there is plastic trim piece in contact with the full perimeter of the front glass. I believe the trim piece does not overlap with the LCD screen. Even so, I am assuming this is screwing with the touch responsiveness. When there is a little pressure on the edges of the screen - most of touch is unresponsive. Has anyone run into this problem? Ideas, insight, links to other threads are very appreciated. Thank you.
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In your case, there are 2 reasons I know of that interfere with the touch operation: (1) the grounding issue where without holding the tab in your hand would cause unresponsiveness. Easy to test: if you leave the tab on a flat surface without touching it, and it doesn't respond well to touches, you can try multi-fix hacks. It helped in my experience. The battery percentage also affects - the lower it goes, the less responsive it becomes.
If it does respond then (2) the problem is what you've already identified. Any pressure, however slight, on the tab or glass would distort responsiveness on some units. In my experience, something as innocuous as adjusting the angle at which the tab stands on a case makes a difference. Here, I've found no cures but to maintain it at an optimizing angle.
Thank you for the reply. I am not having the grounding issue so it must be pressure on the edges of the screen. I'm still searching for a fix to this without having to redesign my entire mount.
graphdarnell said:
In your case, there are 2 reasons I know of that interfere with the touch operation: (1) the grounding issue where without holding the tab in your hand would cause unresponsiveness. Easy to test: if you leave the tab on a flat surface without touching it, and it doesn't respond well to touches, you can try multi-fix hacks. It helped in my experience. The battery percentage also affects - the lower it goes, the less responsive it becomes.
If it does respond then (2) the problem is what you've already identified. Any pressure, however slight, on the tab or glass would distort responsiveness on some units. In my experience, something as innocuous as adjusting the angle at which the tab stands on a case makes a difference. Here, I've found no cures but to maintain it at an optimizing angle.
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Related
Had the TP2 for a week now, really impressed with it, but.......
the plastic screen on top of the touch sensistive screen has come away so when i click I can feel the plastic screen move about 1-2mm before it hits the touch sensitive part.
Has anyone else experienced this, if so is there a fix (heating it or something lol?) or am I in a possition to send it back?
Is this the screen protector that has come away or part of the screen itself?
If it's the screen protector that you have applied, then apparently you can take it off, wash it and air dry it then reapply. Having said that I've never managed to do it, I always end up buying a new one!
If it is part of the screen then DO NOT fiddle about with it, send it back!
I have the same problem.
In my opinion in the middle of the screen + left/right, there is less sensity than under and above he screen.
I think in this part of the screen the space between lcd and his plastic cover is bigger than elswhere.
I have tested it with resco explorer.
I have tried to marked some files from up and down and with a slightly pressure, the upper and under area recognized the input, but in the middle it does not.
Perhaps my Rhodium lacks,
and perhaps it is overstated?
No idea.
It would be nice to get some statements from you guys.
Sorry for my english
Bub3d said:
I have the same problem.
In my opinion in the middle of the screen + left/right, there is less sensity than under and above he screen.
I think in this part of the screen the space between lcd and his plastic cover is bigger than elswhere.
I have tested it with resco explorer.
I have tried to marked some files from up and down and with a slightly pressure, the upper and under area recognized the input, but in the middle it does not.
Perhaps my Rhodium lacks,
and perhaps it is overstated?
No idea.
It would be nice to get some statements from you guys.
Sorry for my english
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Click to collapse
Exact same problem as me, I don't think it was like it when I first got it, lets give it some time and see if others experience the same problem - not sure if this will be covered by warrenty or not.
same problem for me. i can press the screen for about 1-2mm down. but only in the center of the screen.
sometimes there is a click noise, when pressing the screen in the center and under the speaker at the htc logo.
did anyone send it back?
do you mean ?
Do you mean that the screen in the middle is "wobbly" ?
I think I have the same Issue In the middle it feels like if there is some space between the plastic covering the screen and the lcd.
and no, I dont have a screen protector on it atm...
This "issue" that is being discussed here is known as the screen flexing. Unfortunately, this is an attribute of all resistive touch screens.
ohyeahar said:
This "issue" that is being discussed here is known as the screen flexing. Unfortunately, this is an attribute of all resistive touch screens.
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Im a bit relieved now. So it is normal to be like that or a problem with the screen that happens sometimes due to the nature of the resistive screen _
bonevbs said:
Im a bit relieved now. So it is normal to be like that or a problem with the screen that happens sometimes due to the nature of the resistive screen _
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It's normal. All resistive touchscreens are like that (check out your/someone else's Nintendo DS, it's the same). The flexing is pretty good (ie, minimal) on the TP2. It's much worse on older generation devices.
thanks
ohyeahar said:
It's normal. All resistive touchscreens are like that (check out your/someone else's Nintendo DS, it's the same). The flexing is pretty good (ie, minimal) on the TP2. It's much worse on older generation devices.
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thanks for the information.. I didnt knoiw that
every review i've read online before i bought the unit was boasting about how "finger-friendly" the TP2 was, and that you could lightly swipe your finger across it to navigate the menu and that the touchscreen was very sensitive and whatnot
however after 2 weeks of use i find that to be relatively untrue. i've got to apply a fair amount of pressure on the screen to get it to register my input. of course, i'm posting this because i'm afraid that i might be damaging the screen in the process
i have no basis for comparison actually, my only 2 other touchscreen devices at home are an iphone and a cowon s9, both use capacitive screens. i always knew there was a big difference between capacitive screens and resistive screens, i just didn't know it was THIS huge. i can actually slide my finger lightly over the iphone's surface and its registered properly. the sliding probably feels smoother as its glass, but i can live with the TP2's plastic. what do you guys think ? should i get it checked out at the HTC store ?? its on the other side of town, don't wanna waste a trip as if its not a problem
oh yeah and just to get this out of the way, the screen is a membrane and not a hard surface right ?? everytime i press on the screen using my finger or the stylus, i can feel the screen slightly moving down, can also see the surface getting slightly dented at the point my finger pushes it if looking at it from a certain angle.
ps before somebody asks: i only got to test the keyboard at the telco store, some punk had cracked the screen of the display set, so i didn't know about this screen issue until i actually purchased the set
sorry for the long post, but i'd really appreciate any comments
TIA
Well, I don't have an Iphone so i can't tell you about how it compares with the TP2, however, i found the display to be much better than the one on my old XDA. It will probably never as good as a capacitive device like the touchpad on my laptop, but I found it to work very well. You have to apply a certain amount of pressue to the display, because it reacts on pressure, so I guess there is nothing wrong with that. I also see a small dent when I use the stylus and press the display. I cannot confirm the screen slightly going down when pressing it.
To summarize it, i use the Stylus 90% of the time. It glides much better on the display than my finger does so the overall experience is slightly better when using a stylus. Plus i don't get any greasy fingerprints on my display.
However the 10% I use my fingers to work on it (and 25% of that 10% is spent on polishing I found it to work pretty well, so in general I don't think that the reviews were off when it comes to finger usability.
What you are describing is probably normal. Resistive screens do require pressure. The TP2 tends to require less pressure than others, but nonetheless it does require it. There's no comparison if you compare it to a capacitive screen device because those don't require pressure at all.
The flexing of the screen that you described is something all resistive screens have. Again, if you compare the screen flex of the TP2 to earlier HTC devices, it's greatly improved.
To be on the safe side, go to a store and try out other resistive screen devices and see if you experience the same thing as your own. Then you'll know what is considered "normal".
thanks for the replies, i'll probably head down to my telco's store and see if they've replaced the display set then.
any other comments ??
You know I thought the same, waiting for a cab to increase the sensitivity because at the moment its quite annoying pressing buttons more than once...
From a few years to nowadays i´ve always used QTEK/HTC devices, my latest one is, ofcourse, HTC RHODIUM, the rom it has installed is RUU_Rhodium_HTC_PTG_1.19.410.0_Radio_Rhodium_3.44.25.27_Signed_Ship, and the screen is very sensitive and responsive, i´m just very pleased with it overall, it´s the best.
Cheers.
eXceed said:
You know I thought the same, waiting for a cab to increase the sensitivity because at the moment its quite annoying pressing buttons more than once...
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you don't need .cab
just change in registry...
HKLM/drivers/Touch Driver/pressurethreshold, (default=10000)
(I might not remember perfectly, but it's something like that)
try this?
http://forum.xda-developers.com/showthread.php?t=469865
this might help just re align your screen again using little pressure then your screen will not need some much pressure to work.
I have found the this not only aligns the screen but the pressure as well.
mine I just have to lightly touch it and dont have to press very much at all.
Cheers
Hi,
a while ago, I cracked my Uni's LCD. So I ordered a new one including the digitizer, opened my Uni and swithched the displays. Now at times, the touch screen wouldn't work at all - unless I tap the upper left corner (the start button; in portrait mode) or the lower left corner (the left button or slightly above it; in landscape). After that, tapping everywhere works normally. Does anyone have an idea what this could be caused by or how to solve it?
Thanks in advance!
I'd make sure your contacts are very clean. If you think maybe they're not, then take out and clean contacts with dry cloth or contact cleaner and re-insert.
Also, make sure there's no debris around screen. That nothing is pressing on digitiser anywhere else that gives false postive for it.
enigma may be able to help you better, I think she's more accustomed to the HW
Generally, all touch problems are associated with a digitizer. Without actually seeing your device I assume your digitizer is faulty and the problem may be either improper adhesion or the soldering joint improperly formed. Adhesion problem may be resolved by warming the screen with a blowdryer, no need to get it hot, just slightly warm all over and smooth with a soft cloth as if you are applying a screen protector, it loosens the special sticky gel that attaches the digitizer to the LCD and usually helps in cases where sensitivity is sporadic or screen calibration returns wrong response. Check for any bubbling, although not seen when the screen is viewed directly, some may be noted at the angle.
However, in your case there are certain points that need to be pressed in order for it to work, so I take it, the screen works most of the time and the problem is intermittent, the corners that need to be pressed might be the ones where adhesion is not up to scratch.
Try re-assembly, if all fails - contact the screen supplier, faults can happen, especially in non-OEM parts.
Do keep us updated if you find the solution, I am sure all members can benefit.
Problem solved
Well over time, the situation changed so that the touch screen didn't work at all, unless I was pressing one spot above the LCD fairly hardly, at which time it worked without problems. Once I stopped presing the spot, it stopped working again.
So I tried opening the Uni and disconnecting and reconnecting the LCD FPC (which was located just under the spot that needed to be pressed), which seems to have solved the problem
Sometimes, the very bottom of my screen (digitizer) behaves erratically to touch to where Swype is completely nonfunctional. When I inspect the surface of the digitizer, I don't see anything on it. However, when I take a lint-free cloth and clean the screen, it works again. It seems like its absurdly sensitive to microscopic amounts of debris/oil. Anyone else experience this?
I think I'm experiencing the same thing, but I don't think it is the digitizer. In my case I get the back button acting up on me when I hold the phone in a certain way (due to it's width, didn't have the problem with my 4" Vibrant, plus the SGS2 is more curvy than the international version). I think I'm sliding a part of my palm over the screen or building a connection to the metal rim. The back button triggers in those case casing quite a bit of headache when I have to relaunch the app or click forward in a browser. I order a silicon gel case, which I hope will fix the problem by providing a slightly higher lip around the area.
So i bought the a50 cause i wanted a bigger phone like the note at a cheap price. Loving the phone, so i decided to spring for an active stylus, the stylus actually works very well on my g6 and dell touchscreen but for some reason the upper half of my a50 isnt very responsive, and where it does respond is only on the edges. If i start a stroke from the bottom of the scren it will follow through to the top, most of the time. But if i start at the top and move down, it only appear towards the bottom off the screen. Tapping is even worse, almost no response on upper half.
I have no magnetic cases, ive tried two a50s, with and without screen protectors. Always the same result. Heres some pictures to help visualize, does anyone have a fix for this?
Scribles represent dragging, dots represent taps.
You could try increasing the touch sensitivity.
Sukhi said:
You could try increasing the touch sensitivity.
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Thank you for your response. I should have mentioned, the problem is identicle, with or without touch sensitivity increased. The stylus work on a note 9 perfect as well. Starting to suspect its a software problem with the a50.