Has anyone used the multi touch app to test their touch screen? It looks like this picture. The program projects a vertical and horizontal line across the screen where your finger is. I've noticed that with two fingers, sometimes one of the finger points "disappear" from the screen when it lines up with the other finger - that is, when the horizontal lines from the two points line up.
This happens sometimes when using two fingers, and all the time when using 3 or 4 fingers and making the horizontal lines of all 4 fingers to line up. Since the program uses pure sensor data, without much manipulation from the OS, I think this means the capacitive grid is actually losing the touch location (not seeing the finger that disappears).
I was wondering if it's only on my unit or if anyone else sees that?
I've tested with my finger far apart and close together when lining up the cross hair lines. The disappearing finger location isn't caused by the fingers being too close. It's definitely disappears when the lines fall on the same "grid" line. It happens on the horizontal as well as vertical grid lines.
Thanks.
Here's the app:
https://market.android.com/details?id=com.batterypoweredgames.mtvistest
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I cannot replicate this behaviour either horizontally or vertically either in your suggested app, or another similar app by jpjoyjp called Multitouch Test. In either case, aligning two or more fingers from either hand on the exact same horizontal or vertical grid line doesn't cause any touch points to stop registering.
For reference, I'm on a 32GB stock Transformer with 3.1 US installed.
Using Yet another MultiTouch tester I can't duplicate that behaviour.
It tracks all ten of my fingers splendidly well and I can't get them close enough to make them confused - well, I get confused though and often lift my fingers from the surface when trying to get close
Works fine here. Btw, the limit seems to be 10 fingers. Had to ask someone to help me with experiment. xD
Added
Wait I think I see what you mean now. When you hold one finger and quickly tap with the second one, it doesn't detect that the second finger is not longer there. The key is to hold first finger in the exact same coordinates.
Hehe or not.. I didn't read your description carefully.
http://www.youtube.com/watch?v=2OTjkvzbrYY
Thanks for trying it everyone. Well, I tried again just now, but couldn't reproduce it. Weird. Don't know...seems ok now.
Related
When I have my screen shut, and I use the touchscreen, the only places the screen will register taps is on the Start bar and the bottom bar with either Contacts or Calendar. If I open the screen a partial way or all the way open, my taps are registered correctly everywhere on the screen. Has anyone experienced this also and can I fix this problem other than having to always slide it partially to use the touchscreen?
Thanks
RRCsteve said:
When I have my screen shut, and I use the touchscreen, the only places the screen will register taps is on the Start bar and the bottom bar with either Contacts or Calendar. If I open the screen a partial way or all the way open, my taps are registered correctly everywhere on the screen. Has anyone experienced this also and can I fix this problem other than having to always slide it partially to use the touchscreen?
Thanks
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Well there are some possibilities that spring to mind.
Firsy there is no software involved in opening the keyboard just a lttle bit. (Iassume you are NOT opening it far enough to trigger landscape mode). If my assumption is correct then the magnet operated landscape switch is not invplved with this problem. That being the case, then I see two possibilities.
1. The flex cable that runs between the keyboard section and the main body is moved when the keyboard moves. Thus a loose flex cable connection is possible or worse a crack in a wire within the flex cable.
2. The pressures on the case and internal parts/connections varies a little between the closed position and with the keyboard out/partially out. The various connections you see in the picture below could be moving slightly when you partially open the keyboard. Prime candidates would be the D/pad connector with the two screws and the digitizer circuit.
Pic shows the flex cable and possible locations of loose connections.
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There is one thing you can try (a remote possibility) and that is to ajust the torque on the visible screws at the back of the screen (when keyboard is open) Slackening a Little these screws is reported to help with some whitescreen and alignment issues and might just have some effevt. Other than that I see little option but to either send for repair or dismantle to check those connections and the flex cable for wiring integrity.
Mike
Used to spend hours on Etch A Sketch when I was a kid. If it where possible, I think it would be cool to have on the Diamond utilizing the g-
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sensor.
What do you guys think?
eadon said:
Used to spend hours on Etch A Sketch when I was a kid. If it where possible, I think it would be cool to have on the Diamond utilizing the g-
sensor.
What do you guys think?
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yeah !!! and maybe for delete you have to shake the diamond
And use the touch sensititve wheel to draw the pictures!
I agree with Bombzhome, just switch to vertical or horizontal mode, then move your finger around the touch sensitive circle. Also shake to start a new picture is a good idea.
This is a great idea!
That's an amazing idea! I might have a play around
Here's a quick demo I knocked up - enjoy
Use the menu in the bottom left to toggle between Horizontal and Vertical. Use the wheel to draw the line as follows:
Horizontal
Clockwise = Right
Anticlockwise = Left
Vertical
Clockwise = Down
Anticlockwise = Up
The menu on the right is used for clearing the screen and changing the line thickness (I've found thick works best but I guess it depends what you're drawing)...
Swoop2 said:
Here's a quick demo I knocked up - enjoy
Use the menu in the bottom left to toggle between Horizontal and Vertical. Use the wheel to draw the line as follows:
Horizontal
Clockwise = Right
Anticlockwise = Left
Vertical
Clockwise = Down
Anticlockwise = Up
The menu on the right is used for clearing the screen and changing the line thickness (I've found thick works best but I guess it depends what you're drawing)...
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Click to collapse
Thanks a lot for this. A great start! It would be great if you could draw the lines by tilting the device.
All the best
Thanks a lot for this. A great start! It would be great if you could draw the lines by tilting the device.
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Wouldn't that be cheating and against the "etch a sketch" way..?
My thoughts for an update included things like:
Saving the finished drawing.
Playback to show how, from a clean screen, you drew it.
Ability to load a previously started diagram and continue from where you ended.
Possibly add an option to change the way you draw (i.e. tilt)
Somehow highlight where the current position is
I've read most HTC multi-touch handsets use a bugged controller that has an axis-inversion issue. You can test this yourself on all Android handsets by downloading the Multitouch Visible Test (Battery Powered Games) application from the Android Market. The Motorola Droid doesn't have this problem, so I've read.
For example, my HTC Magic (32A) will show this axis-inversion problem after performing a diagonal pinch gesture and then pulling my fingers apart again (while still contacting the screen), although it can take several pinches to demonstrate it. The phone will usually correctly detect the position of my fingers when I pinch, but when parting my fingers again the phone will believe my fingers are retreating to the wrong corners of my screen.
Can someone with an HTC Legend please test the screen with this application for me? Cheers!
Hi,
I just tested, and yes it is like on Magic, he inversed multitouch in few seconds, but then he is back on track.
So it is a HTC bug.
Thanks. If this device ever becomes available in Australia I think I will still consider getting one.
While the bug is still there, I don't think very many (if any) multi-touch gestures care too much about exactly where your fingers are. For the pinch gesture, it really only matters where your fingers are in relation to each other.
It sucks that there's a bug, but there's nothing we can do about it. And it's really a very nice phone in every other aspect.
Well, I didnt find this bad, and I am using it big time, internet, photos and stuff , so bug can be bug, but it is not bugging me
Here is a picture which I take for review of pinch to zoom:
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beetleman said:
Well, I didnt find this bad, and I am using it big time, internet, photos and stuff , so bug can be bug, but it is not bugging me
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No, there are no bugs in a Legend.
Multitouch is as brilliant as it is easy. When 2 points on a touch screen are pressed. You get 2 X and 2 Y coordinates. Problem is, it is impossible to know where the actual fingers are at this point. There are 4 options for each finger (2 x and 2 y combined)
As you can see in this example, the light blue dots are your fingers. The dark blue dots are the other options for the software to consider. The lines illustrate what x and y range the software will get to determine where the fingers actually are.
Luckily, it is very rare for people to put their fingers on the screen at the exact same moment. Which gives the software a hint for where your fingers actually are.
And for most gestures (like pinching) it doesn`t matter where the fingers are.
This the type of capacitive touchscreen that is used by HTC. Apple however has a far more advanced type of touchscreen that uses more sensors then just x & y. The touchpad of a MBP can detect up to 11 fingers and still is very accurate. How many the iPhone can detect I'm not sure, but it certainly uses a more advanced touchscreen then HTC Android devices.
My phone is stock 4.4.2 with recent updates and not rooted. No issues at all just few small issues.
1) This is a weird one, if I play a video and sometime after closing video player the screen becomes like high sharpness, the white color in the screen increases. Its hard to notice but it does. But after turning off the screen and turn on again it became normal. Also I tried taking screenshot of both condition but all looks normal in that, only visually I can see that. Anyone see this issue ever?
2) Skype is very important for me for work and in its setting > Notification > I checked Vibration but it never does. Its notification sound cant change also its very low to hear outside. Please advice.
3) Spen: I dont know if its usual for everyone as I didnt tried any other Note 3 but in my phone the Spen is not responsive mostly at the screen edges. Suppose drawing a line it ends before the screen edge and mostly same all sides. I’ve a screen protector but that is not a thicker one. Its very thin so I doubt if the screen protector could cause this.
1- I notice that all the time ur not the only one
2- try clearing the skype data and reinstall it.
3- no problems with spen on my phone. I have a pretty thick screen protector on it as well. I didnt understand by unresponsive if u meant dead spots or just slower to draw but either way no problems on my handset.
Cheers!
Sent from my SM-N900 using Tapatalk
georgesmh said:
1- I notice that all the time ur not the only one
2- try clearing the skype data and reinstall it.
3- no problems with spen on my phone. I have a pretty thick screen protector on it as well. I didnt understand by unresponsive if u meant dead spots or just slower to draw but either way no problems on my handset.
Cheers!
Sent from my SM-N900 using Tapatalk
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Thanks for your feedback.
1) Its good to know I’m not alone, and probably a OS fault. Hope on next update this will be fixed.
2) I don’t want to clear skype data as I don’t want to lose chat histories. Somewhere I read this will require to enable Vibration 1st on setting and then it will work. But I have already enabled vib for call. Don’t know if there have any other option in setting to enable vibration.
3) By unresponsive I mean it works flawlessly but I’ve to press it little hard on the screen to write properly. With firm writing or light gentle pressure if draw a straight line across the screen it creates a line like this ------------- gap ------------- gap ------------------------
Also it was not working on a particular spot (attached image) but today I found it was due to the flip cover magnet. If I keep the magnet away it works perfectly.
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I've dropped the phone quite a few times but the screen looks perfect. But the past few days I noticed to drag the notification drawer down I have to push on the screen hard while I drag or it will slide back up. It acts up other times too. For instance, in snapchat while holding down to view a snap if I slide my finger out of the way it deselects. Could I have caused damage that's not visible? It also has a TPU case.
Update: I notice the problem only happens vertically and I have no problem swiping side to side. And I also realized its not how hard I press, its more how slowly I swipe. to pull the notification drawer down I have to either pull it really slow or flick it down
I've noticed this same exact behavior on my Verizon G2. I found that my Knock On stopped working as well. Trying to figure out the cause, I tested the Screen with the Paint option in YAMTT.
I found there was a decent portion of the screen that was unresponsive to touch all the way from left to right in a band, almost directly over the physical buttons on the back.
I've called Verizon and they are sending me another one over night.
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joshuakidner said:
Update: I notice the problem only happens vertically and I have no problem swiping side to side. And I also realized its not how hard I press, its more how slowly I swipe. to pull the notification drawer down I have to either pull it really slow or flick it down
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Had same problem and sent to LG. They replaced with reconditioned phone. Common problem.
If I take it to best buy where I got it will they fix it?
Mine isn't working in about the same spot as yours and knock on works only occasionally
joshuakidner said:
If I take it to best buy where I got it will they fix it?
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No, they will not. This needs to go back to the manufacturer for warranty.
Sfkn2 said:
No, they will not. This needs to go back to the manufacturer for warranty.
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When you see this on your screen, its time to send it back
I cant see it on the screen
joshuakidner said:
I cant see it on the screen
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You just saw it..
Read Tiguy's msg again.
Oh.. Ok