I just replaced a screen in a Trinity (Dopod D810). The touchscreen initially wasn't calibrated correctly so I ran the alignment tool in the settings, and after a few attempts, I calibrated it properly and the touchscreen was working perfectly. Now the touchscreen is not working properly. The top half of the screen responds to touch, but no matter where I press in that region, the screen thinks I'm pressing the top-right corner. When I run the alignment again, it responds to all the touchpoints but it never successfully calibrates and it keeps bringing me back to the alignment screen.
The current settings in the registry entry for touch calibration are as follows:
484,558 244,286 263,815 750,820 707,295
I've found a few other threads here (the most helpful being http://forum.xda-developers.com/showthread.php?t=355010) and I've tried the settings from that thread. The screen seems more responsive, but still not correct because the bottom half hardly responds and the top half seems to respond when it feels like it.
Can someone please post their D810 touchscreen settings so I can try it? I've tried the settings from my Touch Cruise, but the screen is still doing weird things.
This is a customer's phone so I need to have this fixed ASAP.
I'm thinking that it may be a faulty digitizer, but that won't explain why it worked perfectly when I first calibrated it.
UPDATE: NOT FIXED yet, but now the backlight is dead. I just turned it off, and then turned it on again, but I can only see the screen content if I shine a torch onto the screen. The LCD hasn't leaked. The backlight just died and the connectors in the phone are fine. Perhaps this was a dodgy screen.
Any ideas?!
since the device has a recessed screen, take the cover off to get at it.
take a soft cloth or something and clean off all the garbage on the digitizer and back of the plastic. make sure everything around the lcd is free of dirt.
usually, if there is something pushing down on the digitizer while you calibrate it, it will totally bork the alignment over the course of 10 minutes to an hour.
my kaiser is currently having this issue, though i put it though alot more hell then i should have... so i suspect its suffering from other issues.
Touch screen pretty much sucks, so I go to the physical keyboard. Are there any solutions for this?
Don't think you can actually calibrate the touch screen...
if you use the HTC_IME then there is touch screen calibration but its limited to calibrating the VK, and not the whole touchscreen itself.
This is not an old fashioned resistive touchscreen... this is capacitive. Calibration is fixed by the digitizer matrix which is aligned physically with the LCD and can never shift (and thus needs no calibration).
If you are having sensitivity problems, keep in mind that this is a capacitive screen -- it doesn't work well sitting on a desk and being poked at, it needs to read the conductivity of your hand, which means that the device needs to share a common ground WITH YOU, which means that you need to hold it in your palm.
I recently purchased a Vogue off of ebay and tried out the SD Card version of Android running Incubus26Jc's Super FroYo 2.2. I wanted to do this before installing to NAND to try it out. After trying it out for a bit I noticed that the touchscreen is not that sensitive.
For example, if I try to swipe with my finger from left to right to get to the second home screen it requires me to swipe from the very edge of the device (if I don't do a swipe across the whole screen it doesn't work well) and push down hard (as compared to another newer device like the iPod Touch). Tapping the screen works fine. Other things I noticed about the screen is it isn't easy to view it at an angle and pressing down with my finger sometimes changes the color of the area immediately around the finger.
My question is whether the device is faulty (in which case I will try to return it to the seller) or is that just the nature of this older touch screen. Or maybe it has to do with the fact that it is installed to SD so it is slower to respond?
no there is nothing wrong with your phone.. the vogue uses a resistive touch screen witch requires a little more pressure than say the itouch or any new touch screen device... they have a capacitive touch screen witch uses electric currents i think.. i prefer a capacitive. but try the screen calibration app and press lightly that might fix your problem
and you shouldn't press very hard they could really mess up your screen
Try using your fingernail instead of pressing harder.
Sent from my European Vogue using XDA App
Hi everyone, first post and it's about a G1 I recently purchased.
My phone is using the Cyanogen Mod 6.0.0-DS, which is freshly installed. The weird thing is that about 2/3 of my screen (when in portrait mode) is unresponsive when I place my finger on it.
When I touch in the Left 1/3 of the screen, it recognizes my touch and works. The even weirder part is that when I start my touch in the 1/3 and move into the other area of the screen, the phone recognizes my movement.
So say I'm on the home screen and swipe left to right. The screen recognizes my touch and I can hold down the touch into the right side of the screen and it follows my movements perfectly. It's only when I touch in that 2/3 right part of the screen when it touches not recognize the touch.
Now, my question is this: Is it software related or hardware related? Is there a setting I can use to maybe calibrate the screen. OR do I need to replace the screen (or digitizer? can someone help me understand the difference)?
Thanks in advance for reading. Any help is greatly appreciated. Ask questions if need be
-Adrian
I am having this issue, too. Anyone able to help?
Its common, I had couple of phones with intermediate touch issues on a portion of the screen, a new digitizer took care of that.
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