Low touchscreen sensitivity - Sony Xperia M2

Hello, I have a Sony M2 D2305 and it seems to me that the screen sensitivity is rather low, sometimes I have to press buttones more than once to get it recognized. When I noticed this I took it to the store and exchanged it for a new one and it does exactly the same. It happens with and without screen protector, it's quite noticeable when scrolling. It has stock android 4.4.2. Thanks in advance!!

With the D2303 I have the exact opposite problem. It seems too sensitive, far too often when scrolling the screens in the launcher it starts an application. Or scrolling in Chrome or Wikipedia it opens links. What is most annoying in that sometimes the keyboard breaks the swipe, making random words.
Having root I wanted to try to modify the configuration file in /system/usr/idc, but there are none for the touchscreen. I even tried to add a couple of them manually. Since it's a Cypress "I2C" touchscreen googling I have seen that some devices have the idc file called "cyttsp4-i2c.idc". So I tried adding the following files:
cyttsp-i2c.idc
cyttsp4-i2c.idc
cyttsp4-mt.idc (for multitouch)
But in the catlog none seemed to have been loaded. At least I didn't notice any difference in the catlog messages for the touchscreen.
Unless it is faulty. Looking around it seems the touchscreens are a common problem with all Xperia devices. But since many screens are different it shouldn't be an HW issue, but a SW on in the Sony drivers.
I dunno. If anyone has any suggestion it will be greatly appreciated.

Related

touchscreen questions

Can anyone who has installed a custom android type rom let me know if the touchscreen is better once rooted and reflashed. I am talking about sensitivity at the store two different ones now both units are just bad when trying to select something I occasionally had to hit the selection more than 2 times.
I am also interested in if this changes. I read that its hit or miss whether or not thr screen works as intended or has problems, leaving me to believe its a production consistancy issue.
Some love it and some hate it.
Does this sound accurate?
Obsolete X said:
I am also interested in if this changes. I read that its hit or miss whether or not thr screen works as intended or has problems, leaving me to believe its a production consistancy issue.
Some love it and some hate it.
Does this sound accurate?
Click to expand...
Click to collapse
Sounds like it.
There's another thread about this which has a youtube video of one of the ones who said their's was bad and it certainly looked to be the case. In the video on the "home" "page" of the launcher when he swiped in the top half of the screen nothing happened most of the time, while it worked as expected in the bottom half. Mine behaves as expected wherever I swipe...
I'm not going to let on that it will be perfect, but when I moved to TnT Lite (I'm now on 2.2.1), I installed LauncherPro. Within LauncherPro, you can adjust the sensitivity and scroll settings that covers all the launched actions. Also, there's an entry you can add to the local.prop [go into adb shell and type: echo ro.HOME_APP_ADJ=1 >> /data/local.prop ] (requires r/w permissions to update). This change made it smoother (and quicker) to go from screen to screen.
There are still times where I press an icon and nothing happens for a second or so, but it rarely happens anymore with all the improvements that have been added to TnT Lite over the last couple of weeks.
I have had no touchscreen sensitivity issues to speak of with ZPad ROM. I am now running the VEGAn ROM which has really come together nicely in the last few days, and again the touchscreen is as sensitive in all places as I would expect it to be.
Any slowness/lag issues were resolved with the updated drivers that were discovered a week or two ago.
The stock TNT ROM has lots of software issues that are totally unrelated to the hardware. This is most likely one of them. I can't say for sure, since I wiped my unit within 5 minutes of opening the box and installed ZPad.
The touchscreen is still not as good with multitouch as it should be, which I believe is a driver issue, so pinch and zoom and similar multitouch action is not as smooth as it ought to be. But in general use, typing, swiping, scrolling, etc. I am just single-touching and everything works as smoothly and well as it does on my Nexus One phone.

[Q] touch screen malfunction

hi,
I'm not sure when exactly this issue started on my phone, but I updated my touch pro with the chevron updater and have quite a lot of apps installed.
after several seconds workling with the phone, the touch screen stops working while the phone acts perfectly normal. I can use the keyboard and tilt the phone but I cannot use the touch screen anymore.
By turning the phone off and on it works again.
has anyone experienced a behavior like this?
I noticed my touchscreen becoming unresponsive when loading particular websites. Even had it freeze once (only time it ever froze on me)
What were you doing when it does this? Do you have the multitasking reg edit on?
exilkubaner said:
hi,
I'm not sure when exactly this issue started on my phone, but I updated my touch pro with the chevron updater and have quite a lot of apps installed.
after several seconds workling with the phone, the touch screen stops working while the phone acts perfectly normal. I can use the keyboard and tilt the phone but I cannot use the touch screen anymore.
By turning the phone off and on it works again.
has anyone experienced a behavior like this?
Click to expand...
Click to collapse
I know this is an old thread but this is the only reference to the exact same problem that I'm having. I'm having difficulty putting this down to hardware as the screen becomes responsive again when locking and unlocking which might point to software.
It could be a hardware issue that is resolved by locking then unlocking the phone but I don't know enough about the construction of it to have an opinion.
The advice I've had from htc is to wipe the 'phone and start again but I don't expect that to solve it (especially as their call handling system refers to Window Mobile 7 - the second large commercial organisation I've seen that on in recent weeks without looking too hard!).
Has anyone else seen this since the original post or @exilkubaner was a solution found to your problem?
Hi,
I have exactly the same problem. I hard reset my HTC 7 Pro, but no success, my screen doesn't respond until i lock/unlock the device.
So, any one have resolved this issue since the first post ?
Regards
Had the same issue, but I didn't have any roms installed.
Brought it in to Sprint and they found that I had a fried ribbon connecting the screen to the phone. Replaced under warranty.
It happened again, I determined that it was caused by my click in belt clip/holster. When I pull the phone out, it pulls the screen away from the keyboard a bit.
^Wow. Nice find. I'll have to be careful with mine now as I could easily run in to the same problem pulling it out like that.

[Nook HD+] Touchscreen sensitivity experimentation (updated GUI app on 07/13)

Thanks to some testing by @alal690 based on my instructions in the post on how to play with touchscreen sensitivity we have some suggested reduced sensitivity values.
I spent entire day figuring how to do more things in android apps, and here's my next terrible UI attempt: NookTouchscreenSensitivityAdjuster-4.apk (backup link).
It's recommended that you run it with 07/11 cm10.1 release, but it will work with older releases too, just all settings (all but touch sensitivity on 07/06) would reset on screen off.
This minimalistic tool would allow you to change various touchscreen parameters in GUI, so not need to play with adb.
Right now this tool just lets you to play with values, the new values persist until the screen turns off (and the touchscreen resets restoring to default values).
The "save" button only saves the sensitivity and focus settings at this time, and the values persists across reboots (important to grant it root access the first time you run it!), everything else is not saved anywhere (since I am not sure there's any value in that and only included the other settings so you can experiment with them and perhaps get back to me with your awesome finds).
save button only works with 07/06 release, in previous releases save button does not persist anything.
the "reset" button resets values to the "old" values in the touchscreen, meaning pre-sensitivity change (so to 0x11, instead of the new 0x16).
Old post:
Anyway, here's a test zip that you can flash to try the new value. I encourage everybody to try it both if you do and do not feel like you have a touchscreen sensitivity issue.
If there are no downsides (so far I see none on my end), we might make this one to be a standard new default.
touchscreen-test.zip - this is for Nook HD+ (noop on the Nook HD). (Note, this is now included into 6/30 build for ovation)
Do not flash into stock, it'll break it.
I know the raw TS settings is a bit intimidating, so I plan to make an app for that, though that's a bit more effort than what I have time for ATM, so we'll make do with just this topical treatment.
will this work with carbonrom also? i like to switch between them.
What about those of us who felt it wasn't sensitive enough? Is there some sort of weird effect where its so over-sensitive that it feels less sensitive?
Apk07 said:
What about those of us who felt it wasn't sensitive enough? Is there some sort of weird effect where its so over-sensitive that it feels less sensitive?
Click to expand...
Click to collapse
Try it and tell me what you find out.
Feel free to play with other register values as per that other post referenced if you can. No two devices are totally the same. So we'll need a significant amount of testing by all interested parties to come to some middle groumd
Either that, or an app where people would be able to setup volume, touchscreen and other settings for themselves, but we'd still need to have sensible defaults.
bckrupps said:
will this work with carbonrom also? i like to switch between them.
Click to expand...
Click to collapse
It probably will work there too, but I did not test it on anything but my setup.
verygreen said:
It probably will work there too, but I did not test it on anything but my setup.
Click to expand...
Click to collapse
i tried it on both. What a difference already. especially on stock browser. sometimes i wanted to smash the thing lol. you are one hell of a dev. scrolling takes a bit more work but clicking links is so much better now. sometimes i would click a link four or 5 times lol
verygreen said:
Thanks to some testing by @alal690 based on my instructions in the post on how to play with touchscreen sensitivity we have some suggested reduced sensitivity values.
Anyway, here's a test zip that you can flash to try the new value. I encourage everybody to try it both if you do and do not feel like you have a touchscreen sensitivity issue.
Click to expand...
Click to collapse
Can I just flash this zip from CWM... or do I need to do any of the other steps mentioned in the post on playing with touchscreen?
dbrickg said:
Can I just flash this zip from CWM... or do I need to do any of the other steps mentioned in the post on playing with touchscreen?
Click to expand...
Click to collapse
You just flash this one from cwm and you are good to go for just this particular setting change.
verygreen said:
You just flash this one from cwm and you are good to go for just this particular setting change.
Click to expand...
Click to collapse
Thanks. That's what I thought. So I went ahead and did it while I was waiting for your response. So far it seems just fine. I guess I don't notice any great deal of difference. But I'm not sure what the symptoms were that you were trying to cure. I can't figure out how to read any of the context around the link to the post you mention in the OP
dbrickg said:
Thanks. That's what I thought. So I went ahead and did it while I was waiting for your response. So far it seems just fine. I guess I don't notice any great deal of difference. But I'm not sure what the symptoms were that you were trying to cure. I can't figure out how to read any of the context around the link to the post you mention in the OP
Click to expand...
Click to collapse
Basically the problem is: there are multiple complaints about people having too sensitive/too insensitive touchscreens. I don't think I am seeing anything like that, but there is more than one report so perhaps different people have different tolerances and different hardware has it's quirks.
The goal here is to arrive at a different set of defaults that would improve the situation for people that feel there is a problem and at the same time don't make situation worse for everybody else who feels current settings are ok.
verygreen said:
Basically the problem is: there are multiple complaints about people having too sensitive/too insensitive touchscreens. I don't think I am seeing anything like that, but there is more than one report so perhaps different people have different tolerances and different hardware has it's quirks.
The goal here is to arrive at a different set of defaults that would improve the situation for people that feel there is a problem and at the same time don't make situation worse for everybody else who feels current settings are ok.
Click to expand...
Click to collapse
mine personally was very insensitive. when i'm on slickdeals and i know you are also or bleacher report clicking on links such as hot deals and my subscriptions would take multiple tries. i didn't notice much system wide but mostly on the internet clicking smaller links. whatever he did with this zip made mine personally much much better.
verygreen said:
Basically the problem is: there are multiple complaints about people having too sensitive/too insensitive touchscreens. I don't think I am seeing anything like that, but there is more than one report so perhaps different people have different tolerances and different hardware has it's quirks.
Click to expand...
Click to collapse
Aha... then I guess I *did* know about the problem. I noticed it most when reading books. After a few minutes, the page turning touches on the lower right margin would seem to stop. I finally just gave up even trying to use them, and substituted a swiping movement. Anyway, with this zip installed, the sensitivity doesn't seem to be any worse, and might well be better. It hasn't been very long, but I'll keep an eye open for differences.
PS: Just read some of the other people's posts, and see that they were complaining of difficulty in clicking links in web pages. I had certainly noticed that, but hadn't even thought of the possibility of fixing it, so had just ignored it. With this new zip, it does seem like web link sensitivity is much improved.
dbrickg said:
Aha... then I guess I *did* know about the problem. I noticed it most when reading books. After a few minutes, the page turning touches on the lower right margin would seem to stop. I finally just gave up even trying to use them, and substituted a swiping movement. Anyway, with this zip installed, the sensitivity doesn't seem to be any worse, and might well be better. It hasn't been very long, but I'll keep an eye open for differences.
PS: Just read some of the other people's posts, and see that they were complaining of difficulty in clicking links in web pages. I had certainly noticed that, but hadn't even thought of the possibility of fixing it, so had just ignored it. With this new zip, it does seem like web link sensitivity is much improved.
Click to expand...
Click to collapse
mine is much improved. whatever adjustments were made I feel like mine could go even a little more in that direction. I'm at like 85% now lol
Thanks, alal690! I think he deserves to get some "Thanks", too, but he doesn't have any posts! And thanks to verygreen for providing the tools for alal690 to tweak with, of course!
I have noticed more mistypes on the keyboard verygreen if you are still needing input but the positives outweigh that in my book. it really is much better on websites. please thank the other dev that worked on this also alal690.
Big improvement for me, thanks I suspect the issue with pressing ui elements was caused by jitter and phantom touches that may have been caused by oversensitivity even though it seems somewhat counterintuitive... Selecting text was the big issue for me and it's now vastly improved. As has my accuracy on they keyboard - normally I'd have had to retype half of a post this length
BTW, it woul be great if people with some sort of a protective film over the touchscreen will give this a try to make sure it's also ok for them (I know those screen protectors are really popular amongst some people).
I've spent the last week trying to fix this, but it looks like it could be a problem with a driver or the actual hardware itself. If you go to Dev tools, then Pointer Location, you can see the reported values for touch pressure and size. When holding down my finger anywhere on the top 2/3 of my screen, the xy and size values jitter like crazy. If I touch the bottom 1/3 of my screen, there is no jittering and the size value is constant.
I think people that are complaining about low sensitivity are mistaken. I think the touch screen response is actually too sensitive, thus causing the jitter and making it hard to click on hyperlinks.
Reducing the touch sensitivity scale and increasing the touch size in the IDC file has helped a lot, but the jitter is still a problem that I hope someone can figure out how to fix.
Sent from my BN NookHD+ using Tapatalk 4 Beta
phammichael said:
I've spent the last week trying to fix this, but it looks like it could be a problem with a driver or the actual hardware itself. If you go to Dev tools, then Pointer Location, you can see the reported values for touch pressure and size. When holding down my finger anywhere on the top 2/3 of my screen, the xy and size values jitter like crazy. If I touch the bottom 1/3 of my screen, there is no jittering and the size value is constant.
I think people that are complaining about low sensitivity are mistaken. I think the touch screen response is actually too sensitive, thus causing the jitter and making it hard to click on hyperlinks.
Reducing the touch sensitivity scale and increasing the touch size in the IDC file has helped a lot, but the jitter is still a problem that I hope someone can figure out how to fix.
Sent from my BN NookHD+ using Tapatalk 4 Beta
Click to expand...
Click to collapse
I agree with phammichael that the real issue here would be jittering, but my symptom is different.
This is what I found so far.
- Pinch out to zoom in something (in gallery or web browser) and hold the 2 fingers on the screen.
- If my fingers are on the right side of the screen surface (portrait mode), the screen jitters. You can see the touch values changing fast and continuously by tiny values.
- If my fingers are on the left side of the screen surface, the screen won't jitter and stay calm.
Am I the only one experiencing this issue?
BTW, this is before I applied verygreen's touch screen patch. I will report back after applying it.
pins2u said:
I agree with phammichael that the real issue here would be jittering, but my symptom is different.
This is what I found so far.
- Pinch out to zoom in something (in gallery or web browser) and hold the 2 fingers on the screen.
- If my fingers are on the right side of the screen surface (portrait mode), the screen jitters. You can see the touch values changing fast and continuously by tiny values.
- If my fingers are on the left side of the screen surface, the screen won't jitter and stay calm.
Am I the only one experiencing this issue?
BTW, this is before I applied verygreen's touch screen patch. I will report back after applying it.
Click to expand...
Click to collapse
The jittery right hand side of the screen in portrait mode is the problem - I have this on my HD+ (which was new) and my Dad has it on his (which was new) as does my friend (again a new unit)
There have also been lots of others reporting the same thing on here.
Put the HD+ into landscape mode and the issue disappears.
I've just applied verygreen's 'fix' zip and I have to say that touch response is loads better - clicking links etc works far more reliably (but right hand side of the screen in portrait mode jitters still exist)
Great work as usual verygreen

Touchscreen issue (bad grounding)

When I put the device on to any insulating surface such as pillow/bed/couch/table I cannot normally operate it. Touch is being interrupted very frequently. This means in practice that I unintentionally press links while sliding through web pages, it is impossible to organize icons (since icon is dropped quickly), pinch-zoom is difficult, unlocking the device is hard, when text-typing it often doubles the letters etc.
Problems goes away as soon as I plug the charger, or take the device in my hand. This looks to me like a grounding issue, which was annoyingly present in some of OnePlus One and Nexus 7 devices in the past. Desperate users were hoping for a software update to solve the issue but it never came out.
Is anyone else experiencing similar problems with Mi 4c? I also tried flashing different MIUI versions, nothing helped.
Here is a video demonstrating the issue (you can enter hardware test menu by calling *#*#64663#*#* and try it by yourself):
I tested, mine is ok
I never really use my phone that way but out of curiosity, I tested it. Can confirm, issue is there. Touch screen goes crazy when scrolling facebook posts, chrome browser, possibly anywhere until I lift the phone up.
Just noticed that I needed to tap and scroll up/down harder than I used to otherwise I would miss it and the scroll would stop halfway through and will tap on whatever it is on the screen when it stopped.
Basically when I don't tap hard enough when doing the scrolling gesture, that's the time that the touchscreen goes crazy
works proper at my mi4c
I had the exact same problem. It is a defective screen. The problem started appear for me after 3 days of use, so I returned it to the store for an immediate exchange. I am not sure if you are in China or not, but if you are, you can just walk into the store and get a new one on the spot.
for me works perfect
Works ok on mine
Works fine here...
I can't even get the touch test started, running cm12.1, dailing *#*#*2664#*#*does nothing, as well as no other I've tried tested
Stenudd said:
I can't even get the touch test started, running cm12.1, dailing *#*#*2664#*#*does nothing, as well as no other I've tried tested
Click to expand...
Click to collapse
Try it with some app. For a single-touch this one is just fine: play.google.com/store/apps/details?id=com.tsaysoft.touchtest
It draws a continous line and if you lift a finger (or if you have faulty screen) the line disappears.
To test a multitouch function you can play with: play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
andrazek said:
Try it with some app. For a single-touch this one is just fine: play.google.com/store/apps/details?id=com.tsaysoft.touchtest
It draws a continous line and if you lift a finger (or if you have faulty screen) the line disappears.
To test a multitouch function you can play with: play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
Click to expand...
Click to collapse
Thank you, I'll try those.
---------- Post added at 09:56 AM ---------- Previous post was at 09:20 AM ----------
Mine is working as expected as well
found solution(the grounding problem is still a thing but this makes it less of an ass)
1) root the phone or just use the developer rom from xiaomi
2)then install Pimp my Rom from google play and grand root
3)go to tweaks-> touch-screen & display-> multi touch amount
and put it on 5.
Hello,
Yes. As a proud owner of one (unfortunately defunct cause I dropped) nexus 7 2013 I can confirm that the behavior is the same... Definitely a grounding problem.
When you leave the phone on a pillow or couch without holding it,bthe screen response is erratic. When you hold it or attach charger.. No problem.
Still beautiful device (the 4c), especially for the price. Snappy.
And smiu is very good made. (not a fan of miui roms...)
This happens only on 16gb version? What about using a plastic case? Does it solve the issue?
Ydraulikos said:
This happens only on 16gb version? What about using a plastic case? Does it solve the issue?
Click to expand...
Click to collapse
I have the 32/3. Same behavior. Not tried wit a case..
i have also found another touchscreen problem, multitouch on sides doesn't work, here the video
https://www.youtube.com/watch?v=uPC7Z2ploxc

Touch screen sensitivity

Hello. I have an Nvidia Shield tablet k1 on lollipop 5.1.1. Everything is great about this tablet except the touch screen. It is really sensitive. Also, when I am scrolling, it "jumps" and goes faster than I actually scrolled. It scrolls faster than it should. I found this thread on xda. It helped a little with the being too sensitive issue, but scrolling is still really weird. This is my second device since the first one's micro sd card was defective. They both are like this. Is there anything I can do, or do I just have to deal with it?
http://forum.xda-developers.com/shield-tablet/general/adjust-touchscreen-sensitivity-t2963326
I was opening a thread with this exact same issue. I'm not on stock though (using the latest CM12 nightly), so I don't seem to have the 'Sensor Calibration' option.
Also the touchscreen seems to register a touch even when the finger is not touching the screen.
On the other hand, if I scroll a very small distance (like 0.5 centimetres) the list I'm scrolling doesn't move at all. This doesn't happen on other devices such as my Nexus 5 and Nexus 7 and is very annoying in some cases (some games, or moving the cursor for keyboard input).
I'll try to record a video of this behaviour.
What can we do to fix this?
Update: found a video (not mine) showing the issue I'm talking about: https://www.youtube.com/watch?v=08uPtusOJHQ
anyone else with this issue?
I also have this issue on/off sporadically on stock rom.
I'll be scrolling and itll jump back the opposite direction
Its like it looses track of the touch then catches it again.
It's irritating as my S5, Nexus 2012 have no problems scrolling smoothly.
I don't recall the original shield i tested in store to have this issue either.
Currently having amazon ship me a replacement to see if its just limited to the one I received. (QA issues)
Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.
variance said:
Calibrating screen might fix the issues: go to About in settings and tap on model number until the calibration screen comes up. then hit calibrate. don't touch the screen then when it asks to reboot, reboot.
Click to expand...
Click to collapse
Did it fix the issue I posted the video about? I'm on Cyanogenmod now so I don't have the option to calibrate the screen, but I would consider going back to stock if it fixed this issue...
Calibration doesnt help at all , same issue at brand new k1. Nvidia says thats normal functionality lol
Yeah, very normal for a gaming tablet which would require precision...
Not trying to take up for this thing but I haven't had the first touch screen issue with it . so maybe not all is affected?? I've tried to replicate the issue but just can't everywhere I touch and slide is smooth
You mean it doesn't "jump" like the OP said? I don't seem to have that issue either.
I'm more concerned about the touchscreen's precision, as shown in the video.

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