[Q] Is it possible to fix this dual-touch bug? (video) - XPERIA X8 Q&A, Help & Troubleshooting

Hi,
There's this thing about the dual-touch module that really bothers me a lot lately. Since it is difficult to put the issue into words, I've uploaded a video for you people to see what the thing is.
See how the touch is recognized in the middle? It happens quite often since I write text messages very fast. Is this possible to fix? Or do the hardware limitations force me to live with it?
Sorry about the quality - the video was recorded using another Xperia device
Relevant info:
Digitizer: Cypress
ROM: FroyoPro v2.5
Kernel: Stock

Have you seen this video? It is too smooth for syncaprtics. It is definitely cypress.

feherneoh said:
Yes, by replacing your Synaptics (I'm almost sure it's Synaptics) tuochpanel by a Cypress one.
Click to expand...
Click to collapse
Sorry I haven't mentioned this before. The touchpanel is definitely a Cypress one. I will add this information to the first post.
Also to note: ROM is FroyoPro v2.5, kernel is stock (bootloader cannot be unlocked).
Is this even normal behavior for the Cypress digitizer? It almost seems as if you suggest it isn't. This bug/problem is one of the things that actually made me want to root the original device. But even though the phone is 2x better than it was before, this problem still persists, and can be annoying at times.
The solution would be most welcome.

This is quite annoying when I'm typing on the keyboard... when I type quickly it thinks very often that I pressed a button halfway between my 2 fingers...
edit: I have tested it with 3 multitouch tester apps and I can't reproduce the problem. Something else causes the keyboard to operate wrongly (happens with all keyboard applications).

Lajbymester said:
This is quite annoying when I'm typing on the keyboard... when I type quickly it thinks very often that I pressed a button halfway between my 2 fingers...
edit: I have tested it with 3 multitouch tester apps and I can't reproduce the problem. Something else causes the keyboard to operate wrongly (happens with all keyboard applications).
Click to expand...
Click to collapse
Same thing happened on stock ROM (I applied the dual touch module before switching to FroyoPro), so I don't think the ROM is responsible. All the keyboards suffer the same issue, except 2.3 Gingerbread Keyboard which performs passable. I really wonder if this case is specific to my phone or do other people have the same issue. Because, if they do, I might as well drop this and blame it on the phone

feherneoh said:
On Synaptics fake dt it seems to be normal. On Cypress... You should try to slow down
Sent from my E15i using xda app-developers app
Click to expand...
Click to collapse
But I like doing everything fast

Here's just an update on the issue.
Recently I had a chance to try another Xperia X8 with a Synaptics digitizer, and luckily the owner had a Gingerbread ROM installed on it. I can say with certainty that dual touch had indeed performed better in typing than on my unit, albeit the Multitouch Visualizer gave some really strange results when both fingers were on the screen. The owner also said that other effects like pinch-to-zoom and performance in games seem to work a lot better on Cypress.
I did some homework regarding the dual touch module made for Cypress devices. Among other things, the developer wrote about this issue which caught my eye:
"- on FroyoBread sliding position of touch from first finger to second if you release first and quicly press second finger in another position - could you check both v003 versions guys ?"
FroyoPro actually is a continuation of FroyoBread, and this sounds very much like the issue I'm having right now.
Can Cypress users (especially if you're also FroyoBread users) please confirm if this problem is common to all of us, so perhaps flashing another ROM, like Gingerbread, could actually solve it?

xWhiskey said:
Here's just an update on the issue.
Recently I had a chance to try another Xperia X8 with a Synaptics digitizer, and luckily the owner had a Gingerbread ROM installed on it. I can say with certainty that dual touch had indeed performed better in typing than on my unit, albeit the Multitouch Visualizer gave some really strange results when both fingers were on the screen. The owner also said that other effects like pinch-to-zoom and performance in games seem to work a lot better on Cypress.
I did some homework regarding the dual touch module made for Cypress devices. Among other things, the developer wrote about this issue which caught my eye:
"- on FroyoBread sliding position of touch from first finger to second if you release first and quicly press second finger in another position - could you check both v003 versions guys ?"
FroyoPro actually is a continuation of FroyoBread, and this sounds very much like the issue I'm having right now.
Can Cypress users (especially if you're also FroyoBread users) please confirm if this problem is common to all of us, so perhaps flashing another ROM, like Gingerbread, could actually solve it?
Click to expand...
Click to collapse
did i understood your statement right?.. that if you press a finger at one position and then press at another postition and quickly remove the first finger it acts like a sliding gesture...if so then yes it does... it does the same on all the roms i have tried yet...

CnC-ROCK said:
did i understood your statement right?.. that if you press a finger at one position and then press at another postition and quickly remove the first finger it acts like a sliding gesture...if so then yes it does... it does the same on all the roms i have tried yet...
Click to expand...
Click to collapse
Aye. But that was the statement of the module creator, AnDyX, not mine Just tried it on the launcher screen. It was funny that it actually forced me to the next screen without doing the slide gesture. This confirms the issue. The module perceives it as a single touch that slided from the first to the second finger. Not as two touches altogether. Typing with it is really a nuisance.

xWhiskey said:
Aye. But that was the statement of the module creator, AnDyX, not mine Just tried it on the launcher screen. It was funny that it actually forced me to the next screen without doing the slide gesture. This confirms the issue. The module perceives it as a single touch that slided from the first to the second finger. Not as two touches altogether. Typing with it is really a nuisance.
Click to expand...
Click to collapse
that action is so fast that it interprets it as a continuous slide....we cant do anything in that.. but it should not give problems in typing... just try to estimate the minimum gap that is required for proper typing so that you can type at the max possible speed.....

CnC-ROCK said:
that action is so fast that it interprets it as a continuous slide....we cant do anything in that.. but it should not give problems in typing... just try to estimate the minimum gap that is required for proper typing so that you can type at the max possible speed.....
Click to expand...
Click to collapse
Yes, I do it with relative success. But then again, I'd rather go without it
Thanks for replying. The issue, it seems, cannot be fixed.

Related

Capacitive Button Responsiveness?

Recently, I've been considering getting a Nexus One, however, most of the reviews I read say that the N1's capacitive buttons are a little unresponsive. You must tap the upper half of the button as opposed to the bottom half of the button.
I've also read that some of the cyanogen roms have fixed this problem. Can anyone give me more insight on this issue?
I've never had a problem with mine.
I saw a review saying that they got in the way when typing w/ the onscreen keyboard, but I haven't even had that, and I'd like to think that I have pretty normal-sized fingers.
Some people have problems, others don't i personally haven't. I wouldn't consider it to be something important enough to sway me from a sale though.
Stock Rom had this issue. If you unlock your bootloader, all the kernels (and mods) available now have a fix for this, as well as a few other things.
Im sure when 2.2 update comes out this fix will be passed on to the stock version too (at least as far as im aware it hasnt already!?). So tbh this isnt an issue for you not to get a nexus one...also, there's no point getting a nexus one if ur too scared to unlock the bootloader!!
adam18488 said:
Stock Rom had this issue. If you unlock your bootloader, all the kernels (and mods) available now have a fix for this, as well as a few other things.
Im sure when 2.2 update comes out this fix will be passed on to the stock version too (at least as far as im aware it hasnt already!?). So tbh this isnt an issue for you not to get a nexus one...also, there's no point getting a nexus one if ur too scared to unlock the bootloader!!
Click to expand...
Click to collapse
Definitely! That's one of the biggest reasons why I want an N1. It has a good root and dev community and gets android updates first.
I just thought it'd be annoying to have to use a phone with crappy capacitive buttons, but I'm glad to hear that the problem has been fixed.
The only other thing I'm worried about is the dualtouch but it's most definitely going to get fixed in the next update.
Thanks to everyone for their input. I'll definitely be picking up an N1 soon
I have rooted and custom roms etc and I still hate the capacitive buttons with a passion. They are not nearly enough to topple the overall awesome that is the N1 but man I hate those things.
I only hate those buttons, when Nex is in my car mount!
adam18488 said:
Stock Rom had this issue. If you unlock your bootloader, all the kernels (and mods) available now have a fix for this, as well as a few other things.
Click to expand...
Click to collapse
Is this true? I've tried plenty of ROMs and kernels and I don't remember any of them changing the button sensitivity.
The best way to show off how frustrating the buttons can be is to give the phone to someone that's never played with it before and watch as they struggle to register touches on the buttons. The people that use the phone daily have recognized that the touchpad is above the button and never think about it any more.
It's very apparent as soon as you rotate the phone into a different position though.
PrawnPoBoy said:
Is this true? I've tried plenty of ROMs and kernels and I don't remember any of them changing the button sensitivity.
The best way to show off how frustrating the buttons can be is to give the phone to someone that's never played with it before and watch as they struggle to register touches on the buttons. The people that use the phone daily have recognized that the touchpad is above the button and never think about it any more.
It's very apparent as soon as you rotate the phone into a different position though.
Click to expand...
Click to collapse
I also haven't noticed any change in the sensitivity with different ROMs or kernels. For me though, sometimes if I hit right on top of the button it won't register. I am used to just tapping it a little above and it works everytime.
As others have said, this is definitely not a deal breaker for me or shouldn't be for any person IMO. This phone's pros far outweigh the cons.
The best way to show off how frustrating the buttons can be is to give the phone to someone that's never played with it before and watch as they struggle to register touches on the buttons. The people that use the phone daily have recognized that the touchpad is above the button and never think about it any more.
Click to expand...
Click to collapse
When someone is doing that you should just say that it has Finger print authentication technology
absolutely true and this was my discovery today (day 4 with n1). the buttons work fine if you cheat towards the top of the button area and overlap into the screen area.
that solved it for me.
resolved for me for now...
xboomer55 said:
absolutely true and this was my discovery today (day 4 with n1). the buttons work fine if you cheat towards the top of the button area and overlap into the screen area.
that solved it for me.
resolved for me for now...
Click to expand...
Click to collapse
Did you just buy your N1 from Google brand new?
Those buttons are a pain in the bum, but you get used to them, the bigger problem is if the phone gets too cold it starts mis-registering the touchscreen necessitating a reboot or a bunch of mucking around to fix it. This is the biggest annoyance with the phone for me, hopefully they fix the screen calibration in 2.2!
Almost swapped mine for a Desire, thinking less of doing so now, unless anyone can offer a good reason
I got my N1 straight from Google on day one, and I'm currently running CM 5.06
I find the capacitive buttons to be _awful_ if I tap directly on them it takes 2-5 attempts to get it to register.
However, I have found that if I swipe from the button down off the bottom of the button it registers ever single time.
I'm pretty convinced that the problem isn't the digitiser itself but in the driver that splits that section of the digitiser off. I believe it checks to see if there is upward movement before registering a button tap and if it does detect upward motion it cancels the tap event and forwards the event as a touch screen event. I also thing that because I have pretty big fingers any time I press the flattening of my finger registers as a slight upward motion.
If I could find the button "sub"-driver I'd be hacking at it right now.
Still, I wouldn't give up my N1.
SilentMobius said:
I got my N1 straight from Google on day one, and I'm currently running CM 5.06
I find the capacitive buttons to be _awful_ if I tap directly on them it takes 2-5 attempts to get it to register.
However, I have found that if I swipe from the button down off the bottom of the button it registers ever single time.
I'm pretty convinced that the problem isn't the digitiser itself but in the driver that splits that section of the digitiser off. I believe it checks to see if there is upward movement before registering a button tap and if it does detect upward motion it cancels the tap event and forwards the event as a touch screen event. I also thing that because I have pretty big fingers any time I press the flattening of my finger registers as a slight upward motion.
If I could find the button "sub"-driver I'd be hacking at it right now.
Still, I wouldn't give up my N1.
Click to expand...
Click to collapse
Just realized that!!
It does not get the upward movement
It gets: right, left & down
So this means, one could set different options for different directions...
hacker01 said:
Recently, I've been considering getting a Nexus One, however, most of the reviews I read say that the N1's capacitive buttons are a little unresponsive. You must tap the upper half of the button as opposed to the bottom half of the button.
I've also read that some of the cyanogen roms have fixed this problem. Can anyone give me more insight on this issue?
Click to expand...
Click to collapse
I have noticed no issues when holding the phone in my hands but the responsiveness is not that great if the phone is flat on a desk or a similar surface. I wonder what if anything the accelerometer may play a factor.
PrawnPoBoy said:
Is this true? I've tried plenty of ROMs and kernels and I don't remember any of them changing the button sensitivity.
The best way to show off how frustrating the buttons can be is to give the phone to someone that's never played with it before and watch as they struggle to register touches on the buttons. The people that use the phone daily have recognized that the touchpad is above the button and never think about it any more.
It's very apparent as soon as you rotate the phone into a different position though.
Click to expand...
Click to collapse
I dunna man, my 3-year-old daughter figured it out within a minute of getting my phone. I set her up in a game and she decided she wanted something else, so she messed with the capacitive buttons until she got out of the game. Once she had it once or twice (~5-10 seconds for her to figure out each time) it was pretty much instant after that. If a 3-yo can figure it out, I'm pretty sure it's not THAT difficult. Annoying, sure....but not difficult.
hacker01 said:
Did you just buy your N1 from Google brand new?
Click to expand...
Click to collapse
Yes. Direct from Google.
Wow there's definitely a good mix of answers. I thought that the newer batches of N1's fixed the capacitive button problem, but apparently not.
I guess there's not a definite answer. It seems the only conclusion you can make is that some N1's may still have the problem, some may not. Some can be fixed with custom roms and unlocking the bootloader and some cannot. Your results may very.
EDIT: After rereading some of the previous posts (more carefully. excuse my sleep deprived state lol), the capacitive button issue might actually be more of a feature than an issue. I've read similar posts about the capacitive buttons having that sort of "motion detection" thing to prevent accident presses. Hopefully for anyone still having the problem, you can reread some of the posts on this page and give their methods a try
I haven't had a problem with mine but I haven't had the problems most people say they have with the phone so I would recommend this phone to anyone that wants an android phone
-------------------------------------
Sent from my Nexus One

[Q] Screen not being sensitive on some parts in ALL CM7 roms?

What's up with this? I noticed it first in GingerDX and Doixnah confirmed it himself, but it is not a rom bug, as it also happens in MiniCM.
In my case I have a Cypress digitizer and the screen is not sensitive on the bottom pixels and on the right border pixels. Very annoying for typing spaces and the letter P, for example.
I have the same problem with my phone...I also have cypress digitizer...
The digitizer causes the problem because synaptics users doesn't have this problem.
I do not think that doixanh or other develop able to fix this bug becaus he don't have cypress...
AndyX has cypress digitizer,
but I don't think that's fixable...
it's hardware problem, not software...
its issue don't available on CM6 rom's and on some app its issuen don't available(like Xda android app(if you move your finger from phisycal keybord to up than scrolling works))
and i know AndyX have cypress....
I have this problem in all ROMs..Even in stock!
anant123 said:
I have this problem in all ROMs..Even in stock!
Click to expand...
Click to collapse
hmm... instresting... i don't' have this problem on cm6 and stock...other's have this problem on cm6 and stock?
Basically my phone sometimes recognizes my finger at the bottom of the screen and sometimes not...
It depends on how dry are my fingers.
I noticed a strange thing in launcher pro.
If you swipe from right to left, the screen is not reacting to it, ok. But try it when you set 3 homepages in LP and you are on the last screen! Strangely it works then, you can "overpull" the page easily.
Now this is some strange sh*t :-S
Sent from my E15i using XDA App
Asycid said:
I noticed a strange thing in launcher pro.
If you swipe from right to left, the screen is not reacting to it, ok. But try it when you set 3 homepages in LP and you are on the last screen! Strangely it works then, you can "overpull" the page easily.
Now this is some strange sh*t :-S
Sent from my E15i using XDA App
Click to expand...
Click to collapse
igen nekem is ugyan ez gondom......
I have same problem....
Asycid said:
I noticed a strange thing in launcher pro.
If you swipe from right to left, the screen is not reacting to it, ok. But try it when you set 3 homepages in LP and you are on the last screen! Strangely it works then, you can "overpull" the page easily.
Now this is some strange sh*t :-S
Sent from my E15i using XDA App
Click to expand...
Click to collapse
How about changing fling speed in LP options? It might help.
On the other hand, that's the way that Launcher Pro is designed...to be smooth and you don't have to swype from one edge to an another to change screen
Peace, DDI!
hmm in my case this didn't happen in pre-CM7 roms
Had the same problem with my digitizer. Just put in a replacement off eBay and works fine now.
sent from my Dinc running CM7
You don't understand. I wrote this because in some case the screen edge is responsive, else it doesn't. So I think this is not hardware related problem. I just mentioned this because it is a strange thing about 2.3 ROMs VS cypress.
Sent from my E15i using XDA App
It isn't a hardware problem, so replacing the digitizer is nonsense.
Definitely, it's not hardware problem.
Just try to rotate screen for 180 degrees (must check 180 in accelerometer settings) and You will see that edge next to the Sonyericsoon logo will become the problematic one. And The edge with buttons will work perfectly.
I have cypress, too and this problem exist only in CM7 roms, on all CM6 rom there is no such issues with screen.
Also, I noticed that this bug doesn't appear in some apps. Also in settings, screen work perfectly.
dragan985 said:
Definitely, it's not hardware problem.
Just try to rotate screen for 180 degrees (must check 180 in accelerometer settings) and You will see that edge next to the Sonyericsoon logo will become the problematic one. And The edge with buttons will work perfectly.
I have cypress, too and this problem exist only in CM7 roms, on all CM6 rom there is no such issues with screen.
Also, I noticed that this bug doesn't appear in some apps. Also in settings, screen work perfectly.
Click to expand...
Click to collapse
agree with you.... in settings it's work's without lags...
dragan985 said:
Definitely, it's not hardware problem.
Just try to rotate screen for 180 degrees (must check 180 in accelerometer settings) and You will see that edge next to the Sonyericsoon logo will become the problematic one. And The edge with buttons will work perfectly.
Click to expand...
Click to collapse
I'm sorry...You are right...
Thanks God it's not a hardware problem.. (Which makes it fixable )
dragan985 said:
Definitely, it's not hardware problem.
Just try to rotate screen for 180 degrees (must check 180 in accelerometer settings) and You will see that edge next to the Sonyericsoon logo will become the problematic one. And The edge with buttons will work perfectly.
I have cypress, too and this problem exist only in CM7 roms, on all CM6 rom there is no such issues with screen.
Also, I noticed that this bug doesn't appear in some apps. Also in settings, screen work perfectly.
Click to expand...
Click to collapse
Nice findings, pal.
i don't have any problem with this in any rom. All screen is sensitive with all roms i've used, GingerDX, KuyaDROID, MiniCM7, MiniCM6, FroyoBread, Floyo, GingerCruzt, stock rom, i'm with Cypress and AX8MT module and it's working fine, no lags, sensitive, and the dual touch is also very fast responding.

Anyone facing ghost touch on rooted 4.4?

I have unlocked and rooted with the latest 4.4 but have been facing lot of ghost touch, over heating and freeze. Is anyone else facing the same issues with their z1?
ravi_buz said:
I have unlocked and rooted with the latest 4.4 but have been facing lot of ghost touch, over heating and freeze. Is anyone else facing the same issues with their z1?
Click to expand...
Click to collapse
I haven't as yet but I did notice that the touch screen issue I had where my finger / thumb would lose contact briefly with the screen.
Hasn't happened a lot and holding the metal frame fixes it.
What youre describing could be a knock on effect of the new firmware having a higher sensitivity to the previous firmwares, I know Sony were aware of the touchscreen issue that people were facing and there was a fix where you could alter the sensitivity of the touch screen.
Could be that your touchscreen is set too high for your device in particular, either that or it's a problem with the touchscreen or even some dirt.
Give it a good old clean and a few reboots.
All the above is speculation of course, just having a stab at it for you m8.
Not sure where that thread is about the touchscreen but it's definitely in the Z1 forum.
dladz said:
I haven't as yet but I did notice that the touch screen issue I had where my finger / thumb would lose contact briefly with the screen.
Hasn't happened a lot and holding the metal frame fixes it.
What youre describing could be a knock on effect of the new firmware having a higher sensitivity to the previous firmwares, I know Sony were aware of the touchscreen issue that people were facing and there was a fix where you could alter the sensitivity of the touch screen.
Could be that your touchscreen is set too high for your device in particular, either that or it's a problem with the touchscreen or even some dirt.
Give it a good old clean and a few reboots.
All the above is speculation of course, just having a stab at it for you m8.
Not sure where that thread is about the touchscreen but it's definitely in the Z1 forum.
Click to expand...
Click to collapse
Cleaned it and rebooted. Din have this problem before rooting..but as soon as i rooted i started seeing these things happpen
ravi_buz said:
Cleaned it and rebooted. Din have this problem before rooting..but as soon as i rooted i started seeing these things happpen
Click to expand...
Click to collapse
So on the base that you were on you didn't have any issues, Rooting itself will not cause this issue.
What base were you on prior to rooting and what are you on now?
dladz said:
What youre describing could be a knock on effect of the new firmware having a higher sensitivity to the previous firmwares, I know Sony were aware of the touchscreen issue that people were facing and there was a fix where you could alter the sensitivity of the touch screen..
Click to expand...
Click to collapse
How can I alter the sensitivity of the Touch Screen?
EDIT: sorry, I forgot you don't know where it is..
---------- Post added at 02:32 PM ---------- Previous post was at 02:23 PM ----------
ravi_buz said:
Cleaned it and rebooted. Din have this problem before rooting..but as soon as i rooted i started seeing these things happpen
Click to expand...
Click to collapse
Same here, after rooting mine, it starts again the touch screen to respond strange, but not a big problem. Did not had this on .136.
dladz said:
So on the base that you were on you didn't have any issues, Rooting itself will not cause this issue.
What base were you on prior to rooting and what are you on now?
Click to expand...
Click to collapse
Actually Rooting can cause the issue because the Pre-Rooted version can be different from the original one installed on our phone.
After I received the phone from Repair they updated the Software and then I updated to .136 officially and the issue disappear, never had even a bit of it. Then I rooted, but to do so I used a different Base, NUT use the Frence region I think, and after that on mine .136 the problem with Touch Screen appear again, not badly, all is fine but sometime it skips something.
So I think it's really related to the Software and the all the phone have a specific Base.
eclyptos said:
Actually Rooting can cause the issue because the Pre-Rooted version can be different from the original one installed on our phone.
After I received the phone from Repair they updated the Software and then I updated to .136 officially and the issue disappear, never had even a bit of it. Then I rooted, but to do so I used a different Base, NUT use the Frence region I think, and after that on mine .136 the problem with Touch Screen appear again, not badly, all is fine but sometime it skips something.
So I think it's really related to the Software and the all the phone have a specific Base.
Click to expand...
Click to collapse
Then it would be down to the rom and not the rooting process, rooting alone won't affect the touchscreen m8.
The Rom could though.
dladz said:
Then it would be down to the rom and not the rooting process, rooting alone won't affect the touchscreen m8.
The Rom could though.
Click to expand...
Click to collapse
Of Course.
i have not experienced ghost touch but i did experience the screen failing to register two finger touch sometimes.
what i mean by that is when u quickly touch another part of the screen after its been touched it would register it as a swipe.
very annoying when typing keyboard or even pressing key pin on lockscreen.
i reproduced this in touch test and
once it registers as a faulty swipe while holding down the touch
it keeps registering swipe wherever the other finger presses untill i stop touching.
also when i installed a fresh rom it seems that the touch is very sensitive.
i tried this out http://forum.xda-developers.com/showthread.php?t=2691849
its not a fix but it helps out.
I think i have drilled down to the cause for this issue.
1. I started mounting my phone on my motorbike and ride. Due to excessive vibration the screen might have started acting out.
2. I also read that x alert causes this.
I have locked bootloder and installed stock ROM. Lets see whats happens
ravi_buz said:
I think i have drilled down to the cause for this issue.
1. I started mounting my phone on my motorbike and ride. Due to excessive vibration the screen might have started acting out.
Click to expand...
Click to collapse
I don't think this cause the issue.
ravi_buz said:
2. I also read that x alert causes this.
Click to expand...
Click to collapse
What is that or where it is?
Been trying to find that adjustment you can make for the touchscreen but can't find it. Its an adjustment of a file within android which deals with how sensitive the touch screen is. Buggered if I can find it though. I commented on it too. Eluded me.
Sent from my C6903 using XDA Premium 4 mobile app
dladz said:
Been trying to find that adjustment you can make for the touchscreen but can't find it. Its an adjustment of a file within android which deals with how sensitive the touch screen is. Buggered if I can find it though. I commented on it too. Eluded me.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Maybe that Calibration.ini file magically can help?
BTW, if you find that thread let me know because I am interested too in changing the sensitivity, I will like to play with that.
eclyptos said:
Maybe that Calibration.ini file magically can help?
BTW, if you find that thread let me know because I am interested too in changing the sensitivity, I will like to play with that.
Click to expand...
Click to collapse
Will do m8.
dladz said:
Will do m8.
Click to expand...
Click to collapse
I would definitely be interested in this as well so could you please inform me as soon as you find something? Thanks
I am unable to pin point the problem.
1. Its not bcoz of root/boot loader
2. Not bcoz of mouting it on my bike. Infact when i mount it, it functions normally.
3. Ghost touch worsens when i play clash of clans but it is there other times too.
So its either bcoz of over heating (games make the phone heat a lot) or water entered it or i am not sure.
http://forum.xda-developers.com/showpost.php?p=51742613&postcount=8
He found my thread
I always surf the forums and check out what is happening, and this thread did catch my eye
I don't like to think that the touch screen issue is hardware related. I really hope it isn't.
Don't put your heart on this 'fix', as I have lost faith in it myself...
I'm going to post there now as well, to tell people what I have said here.

Display Touch Delay.

So I got the Sony Xperia SP today (Isn't really a new phone for this day but it's better then the old S3 mini) and I rooted it.
So everything went well (isn't the first device I root) but there is something that I really hate on it.
The touchscreen by it self has some kind of delay.
I turned on show touches, and I started up a game were you cannot afford any delay, the game is called VOEZ.
So after I touch a "note" in the game, I fail every single one because when I tap on the screen, it takes like a half second to register my touch.
Is there any way to get the delay lower or get rid of it? (For example, the s3 mini didn't had any delay and it's older so I guess there is some way to do it?)
Thanks.
Well, the delay might be caused by the ROM you're running.
Does the delay present on the ROM before you rooted it?
TechnoSparks said:
Well, the delay might be caused by the ROM you're running.
Does the delay present on the ROM before you rooted it?
Click to expand...
Click to collapse
I found the problem by my self after searching for a bit longer.
For some reason the delay was there because in the display setting was Glove mode chacked.
I fixed it now. Thanks.
Fehleno said:
I found the problem by my self after searching for a bit longer.
For some reason the delay was there because in the display setting was Glove mode chacked.
I fixed it now. Thanks.
Click to expand...
Click to collapse
And just for your knowledge.
The Xperia SP has a known bug, that it doesn't recponce on touch when it's on the horizon (like when its on the table)
For me flashing CM13 from stock fixes that problem

Multitouch with +5 fingers

****UPDATE: *****
This is what happens https://imgflip.com/gif/1xvxm0
What can be the cause of this? Does this happen to any of you as well? Should i open the casing and see if there is anything touching the metal casing that should not ?
****EO UPDATE ****
I have been testing with both
Settings -> Developer Options - > Show Pointers (and looking at the top left that says x/x points)
or
Using a multitouch test app like so https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
The latter is nice because it has big handlers and you can clearly see the point/touch flickering like loosing and creating point (hence creating a new point ID)
From what i can say in Marshmallow it worked way better, on the last 2 Nougat updates i saw that at the 7th point it started to do the flickering and with this one it starts at the 5th point.
With 3 fingers screenshot disabled (and all the gestures for that matter) as i know it would create a conflict.
Just tested in a Motorola with Marshmallow and it created the 10 points flawlessly.
I wonder if any of you noticed the same or is something off with my touchscreen?
Might it be a Nougat thing ?
Any known solutions?
I searched around and nothing Nougat related seem to pop up
Just tested with both OP2 and a Moto G5 and they both work great, actually it even worked great on my Samsung Galaxy i9000
I have noticed that for the last 2 updates or so multitouch capability has been decreasing.
When are you ever going to use ten fingers to multitask? If it wasn't for the screenshot gesture, we wouldn't even be using three.
JarJarWinks said:
When are you ever going to use ten fingers to multitask? If it wasn't for the screenshot gesture, we wouldn't even be using three.
Click to expand...
Click to collapse
That is irrelevant for what i am trying to figure out, what i want to know is if it is a HW problem by default or just my HW is faulty or even if it is a Nougat problem.
It works flawlessly on other less capable phones
Either software or hardware fault I would say. I just tried it out without any flickering with 10 fingers on my 3t running latest unofficial LineageOS 15/Oreo ROM.
pitrus- said:
Either software or hardware fault I would say. I just tried it out without any flickering with 10 fingers on my 3t running latest unofficial LineageOS 15/Oreo ROM.
Click to expand...
Click to collapse
Thank you, from what i get so far is a Nougat thing, all the users that have Oreo seems to work fine
Conductive electricity ?
Ok some pretty strange updates...
I accidentally tested it on a metal table and it worked perfectly, which lead me to think that it might be due to conductive energy or something.
So i tried the test on a wooden table and it does flicker and loose touches, so i pressed with a finger on a metal part of the OP3T casing and the points are registered properly.
I had made a video so people don't think i am crazy here is the result https://imgflip.com/gif/1xvxm0 at this point i can say that is directly related.
What can be the cause of this? Does this happen to any of you as well? Should i open the casing and see if there is anything touching the metal casing that should not ?
anyone ?
This is a non issue honestly. If it doesn't change how your phone functions in day to day practical use, you probably shouldn't bother with something like that. The touch display functionally is fantastic especially the screen colors and with the recently fixed touch latency it does happen to be one of the best screens on the market despite its lower resolution. Factually you won't use more than a three touch input so. IMHO
nagi_007pk said:
This is a non issue honestly. If it doesn't change how your phone functions in day to day practical use, you probably shouldn't bother with something like that. The touch display functionally is fantastic especially the screen colors and with the recently fixed touch latency it does happen to be one of the best screens on the market despite its lower resolution. Factually you won't use more than a three touch input so. IMHO
Click to expand...
Click to collapse
It is definitely a problem did you watched the video ? because it seems like a real hard problem to me, use cases for you might be different from others. My old samsung galaxy i9000 as well as my OP2 did not had that problem
It may be a problem for one and may not be a problem in another's eyes.
To address your issue, have you tried switching ROM's? I don't think it could be a Nougat problem, but you might as well try Oreo or even MM.
This may sound funny, but have you tried with another person's fingers?
thes3usa said:
It may be a problem for one and may not be a problem in another's eyes.
To address your issue, have you tried switching ROM's? I don't think it could be a Nougat problem, but you might as well try Oreo or even MM.
This may sound funny, but have you tried with another person's fingers?
Click to expand...
Click to collapse
I had the feeling that it might be from the updates (still using official OP updates) but right now i think it might be hardware. Yes i tried with other fingers, thinking about opening the phone to see if there is something touching the metal case inside.

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