Database Develop

[Q] Touchscreen issue

Hi everyone,
I was up to ICS Rom yesterday, but everytime i unlock screen, i cant touch in the bottom of the screen, cant typing with h, g, j and somewhere around it, but on the right, left or top screen i can still use normal. Does anyone know what happen and how to fix it?
When im in CM7 Rom is was fine and has no problem
PS: Sr for my bad english i really not good in grammar.

Same problem but different area
I have the same issue.
On Apex i had no issues but when i upgraded to SlimICS 3.2. The right side of the screen ocasionally becomes unresponsive.
That is, on any keyboard from approximately the 'i' to backspace horizontally, and from enter to the top of the screen.
This whole zone randomly decides not to work. the only fix is to turn the screen off and then turn the screen on again, or backing out of the application and reloading it. The application can be anything, chrome browser, swiftkey, messages, whatsapp.
Does anyone know what the issue could be?
I'm running slimics3.2 with semaphore ics 1.0

I'm also running slim 3.2 and had the same issue with the sephamore kernal. I just reflashec the essentials and everything worked perfectly for me.
Sent from my SGH-I897 using XDA

I used the essentials kernel first and experienced the issue, i thought it was a kernel issue so I flashed semaphore afterwards. But I still have the issue...

arse87zx said:
I'm also running slim 3.2 and had the same issue with the sephamore kernal. I just reflashec the essentials and everything worked perfectly for me.
Sent from my SGH-I897 using XDA
Click to expand...
Click to collapse
I tryed AOKP 3.0 and didn't modify anything, also some another ROM but it still have a problem with the touchscreen

KunNuK said:
Hi everyone,
I was up to ICS Rom yesterday, but everytime i unlock screen, i cant touch in the bottom of the screen, cant typing with h, g, j and somewhere around it, but on the right, left or top screen i can still use normal. Does anyone know what happen and how to fix it?
When im in CM7 Rom is was fine and has no problem
PS: Sr for my bad english i really not good in grammar.
Click to expand...
Click to collapse
I hate to say this, but its probably the fact the phone does not like ICS, it is more than likely some sort of hardware incompatibility issue.
I went through this exact same thing, it was on a 1009 or so build number captivate, no matter what flavor of ICS, none of them would work properly with the touchscreen hardware, there was always a spot of the screen, at the lower center 1/4 portion of the screen, that was unresponsive. Flashing a Froyo or Gingerbread rom, the touchscreen was perfect.
So.. I sold that Captivate, purchaced a refurb Captivate off Ebay, and touchscreen is perfect with ICS (CM9 is what I run).
Wish I had something more helpful, but that's my experience. Good luck with it.

[Q] Multitouch lag/issues? what could be the cause?

So I started noticing lag on games with a virtual pad. As in, jump works fine if im standing in game for example, but im running and I try to jump, either it doesnt do it at all, or it does it with some lag.
So I downloaded a multitouch tester and pretty much confirmed that there's an issue there.
If I just touch with one finger at a time, it works fine. If I press with two fingers and keep them there moving them around and whatnot, it also works fine.
BUT, if I keep pressing with one finger and use the other one to do a fast light tap, half of the time it doesnt register it.
Im using the ROM posted here: http://forum.xda-developers.com/showthread.php?t=1583871
wich im finding to be great, but I thought of originally posting my issue there since I gather it is more likely to be caused by software and not hardware.. right? considering simple touch works completely fine.
Any ideas?

Ace supports only 2 fingers at a time. But i did not find any types of lags while using 2 fingers. But it wont work if u use 3 or more fingers at once.

REPLY
Hey I got 100% same issue too. On original cm7 nightly.
But I found out sometimes it works and sometime it doesn't seems to work. I think it's similar to the rounding bug.
Maybe it's the kernel problem. Just don't overclock and it will work well. Or, reboot your phone and wait for a night without touching it, and the problem is gone. However, the bug will occur again after you install an app or launch an app. This multi-touch bug always occur on cm7. If you don't want this problem you can use stock roms. But if you say touch making it lags, it doesn't make our phone lags or the game you play using this phone is a bit slow. Just the second finger is responding slowly if the first finger is pressed/touched on the screen.
And I've tested this bug using the dev tools in the cm7 rom. dev tools/pointer location. All of the stock rom doesn't have this bug except cm7. CM7 will not have this problem on the first few weeks since the first boot. hope it helps

It's a Ace Hardware issue. Nothing to do about it.
King of the mashed potatoes©

Getting a faster device is the only solution
I got transformed into a potato while writing this post..

Screen unresponsive

Hi everyone,
I bought a Samsung galaxy s last week from an eBay auction. The phone was described as touch screen lag. I was thinking that flashing a new firmware will solve the problem. I got really cheap though
The touch screen stops suddenly in every 5/6 minutes and I have to lock the screen using power key and unlock again to make it working.
when I got the phone:
Non Samsung battery and chargers were used, I changed and using original ones.
Stock XXJVS firmware in it.
First I flashed stock 2.2.1 froyo and test the screen using *#0*# code. it got pass. But when I start using it, the problem was still there.
Then I flashed stock GB, same story, now slim ics, same thing.
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.

mregmi121 said:
Hi everyone,
I bought a Samsung galaxy s last week from an eBay auction. The phone was described as touch screen lag. I was thinking that flashing a new firmware will solve the problem. I got really cheap though
The touch screen stops suddenly in every 5/6 minutes and I have to lock the screen using power key and unlock again to make it working.
when I got the phone:
Non Samsung battery and chargers were used, I changed and using original ones.
Stock XXJVS firmware in it.
First I flashed stock 2.2.1 froyo and test the screen using *#0#* code. it got pass. But when I start using it, the problem was still there.
Then I flashed stock GB, same story, now slim ics, same thing.
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.
Click to expand...
Click to collapse
Sounds like a hardware problem to me..but it's really hard to say if it is. But it would definitely seem like it since it isn't ROM related. Maybe a water damage or faulty digitizer?
Sent from my GT-I9000 using Tapatalk 2

This happens to me sometimes very rarely though, it will be weird and hard to touch but speaking to someone with the same phone they said they had this problem to all I do to resolve the problem is lock and unlock the screen, I thought this was normal?
Sent from my GT-I9000 running remICS-UX using XDA premium

It shouldn't be normal. I am using another galaxy s for almost two years. But never had this problem in such extent, little bit lag on touchscreen when on froyo. But never after. Now with slim ics Temple run is more smooth then iphone 4.
Sent from my Galaxy S using xda premium

Kurre said:
Sounds like a hardware problem to me..but it's really hard to say if it is. But it would definitely seem like it since it isn't ROM related. Maybe a water damage or faulty digitizer?
Sent from my GT-I9000 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for reply. When I got it first time, it was really annoying, the problem was so frequent that it was almost unusable. Now in new rom, after unlocking the screen it works little longer then before. Works like a charm when it works. So not sure this is hardware problem.
Sent from my Galaxy S using xda premium

I don't think this is a hardware or problem either, I broke the screen and replaced it and I still have the same thing when though it is very rare, so if it was the screen it should of gone after I installed the new one, btw I installed a whole new pre built front so the bevil and LCD, and my phone has never hib water damaged? Maybe its something to do with the bootloader? As that doesn't change through ROM flashes
Sent from my GT-I9000 running remICS-UX using XDA premium

mregmi121 said:
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.
Click to expand...
Click to collapse
try using a LCD modder LCD density modder https://play.google.com/store/apps/details?id=com.birdapi.android.dpi&feature=search_result

@xsenman;
I did that couple of times going through Advance slim setting. That didn't change anything. Now I'll try this as well.
I change touchscreen into chainfire sensitive option in semaphore app. Still lagging.
Tried over clocking to 1200 but it freezes and automatically reboots into recovery mode. I can use only after changing to default
Sent from my GT-I9000 using xda premium

Guys its really annoying now. Its behaving strangely. I played with it few hours and found out that the screen near the home button freezes first. I cant press the dock but still pull the notification bar? then stops working whole screen. I checked the show touches in developers options setting. Sometimes it works randomly actually without touching it , I just place my finger near the screen but didn't touch and on few occasion it works opposite direction, like I scrolled down but it gone up:crying:
Is this the sensor issue? Is there any way to fix? Any idea please?

mregmi121 said:
Guys its really annoying now. Its behaving strangely. I played with it few hours and found out that the screen near the home button freezes first. I cant press the dock but still pull the notification bar? then stops working whole screen. I checked the show touches in developers options setting. Sometimes it works randomly actually without touching it , I just place my finger near the screen but didn't touch and on few occasion it works opposite direction, like I scrolled down but it gone up:crying:
Is this the sensor issue? Is there any way to fix? Any idea please?
Click to expand...
Click to collapse
try this tool to verify where the problem is , if its hardware, you have no choice but to take it to a technician
https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&feature=search_result
and this
https://play.google.com/store/apps/details?id=com.vital.tst.n7000&feature=search_result
https://play.google.com/store/apps/details?id=zausan.zdevicetest&feature=search_result

xsenman said:
try this tool to verify where the problem is , if its hardware, you have no choice but to take it to a technician
https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&feature=search_result
and this
https://play.google.com/store/apps/details?id=com.vital.tst.n7000&feature=search_result
https://play.google.com/store/apps/details?id=zausan.zdevicetest&feature=search_result
Click to expand...
Click to collapse
Screen+digitizer panel can be changed by yourself. For it, you just need couple of tools and little nerves
Instructions can be found from YouTube, this forum and many other places..
Sent from my GT-I9000 using Tapatalk 2

Kurre said:
Screen+digitizer panel can be changed by yourself. For it, you just need couple of tools and little nerves
Instructions can be found from YouTube, this forum and many other places..
Sent from my GT-I9000 using Tapatalk 2
Click to expand...
Click to collapse
I tried all of those apps, nothing wrong. I think I should change the screen and digitizer, I might need to go to the repair center because my hands shake (my usual problem) and hard to fix tiny things. I want to do few experiments before taking it to repair. I already put it in the freezer for two hours it was acting like crazy after.
Suggest me more...
Sent from my GT-I9000 using xda premium

Me too!
and i thought i'm the only one experiencing this kind of problem. it is exactly what i'm having on my sgs. seems to be temporarily fixed by turning the screen off and then on again, but after a while, the screen doesn't respond on the same spot as you're having.
i've managed a low level debug on screen touch response using adb logcat, and my touch doesn't really register any on adb logcat console.
they might be correct on the hardware problem, but when i'm on any gingerbread rom (2.3.6), the problem is gone.
guys, any idea what kind of drivers they're using on gingerbread for our touchscreen?

I have this too on ics, left half of screen stops responding, lock on/off sorts it....until the next time! Bugs the hell out of me!

Me too! on ICS
btw, i'm already on ics team nyx

change
flash CF KERNEL and put ICS CM9

middle screen not responding
- when in stock gb firmware (official from samsung), the touchscreen problem is gone.
- but i want the features of an ics rom, so i flashed one (first was slim ics); the problem appeared first; first guess was the custom rom was still in its early stages.
- flashed back to gb, no touchscreen problem.
- flashed new ics rom from cm9 (nightlies), problem appears again (ugh!).
- flashed backed to updated slim ics since this was the fastest and easiest to install, touchscreen problem still persist.
- found a temporary fix by turning the screen off then on again.
did a adb logcat full trace log of touchscreen input: what i noticed was the whole vertical middle part of the screen is not responding to touch; dragging touch from one side to middle is working just fine, but not starting from the mid vertical part.
the problem may sometimes go away after a while, and sometimes persist even after the temp fix. it's very intermittent indeed.
help please.

psycotrompus said:
- when in stock gb firmware (official from samsung), the touchscreen problem is gone.
- but i want the features of an ics rom, so i flashed one (first was slim ics); the problem appeared first; first guess was the custom rom was still in its early stages.
- flashed back to gb, no touchscreen problem.
- flashed new ics rom from cm9 (nightlies), problem appears again (ugh!).
- flashed backed to updated slim ics since this was the fastest and easiest to install, touchscreen problem still persist.
- found a temporary fix by turning the screen off then on again.
did a adb logcat full trace log of touchscreen input: what i noticed was the whole vertical middle part of the screen is not responding to touch; dragging touch from one side to middle is working just fine, but not starting from the mid vertical part.
the problem may sometimes go away after a while, and sometimes persist even after the temp fix. it's very intermittent indeed.
help please.
Click to expand...
Click to collapse
So your sgs touchscreen working fine on stock gb rom! It might not be a hardware problem then. We have similar problem, only difference is I have problem on GB too. I've even tried stock froyo, same story
Sent from my Nexus S using xda premium

same problem here, left part of the screen would be unresponsive at times
can fix by locking the phone through power button and unlocking it, thats why i think its a software problem.
I dont remember having this problem in GB also.
maybe something is messed up during flash?

I have the same problem with ics and jb roms from the onecosmic ics times and i had a topic http://forum.xda-developers.com/showthread.php?t=1648287
I have written here but no one seems to now what it is, i have been using ics from onecosmics first release and had the problem from that moment on, different kernels, roms etc it is still here i have flashed gb again and problem is gone, flash again with ics the middle part still acts sometimes. ?...
We should request from kernel developers and rom developers to look into it. I have tried almost everything no luck so far

Anyone having problems connecting a bluetooth keyboard?

I have a logitech keyboard for Android 3.0+. I've been having problems with it in that when it connects or disconnects it refreshes the screen or browser. Every once and a while a key will get stuck (not the physical key but on the software side) and repeat itself without me being able to stop it.
Here is a video of the problem: Bluetooth Keyboard Issue
I decided to try it on my phone (also running JellyBean) and it does the same thing. Anyone know if this is a known JellyBean issue or could it possibly be the bluetooth keyboard? Anyone using the logitech bluetooth keyboard for android and not having problems?

I have Logitech blue tooth keyboard(the one with the touch pad) and it does do bad things when it connects to my N7. It knocked me out of a movie that was playing, for example.
Sent from my Nexus 7 using Tapatalk 2

I tried my bluetooth headset on both my phone with JB and the N7 and they didn't cause this problem. I'm wondering if it's just a problem with how JB handles bluetooth input devices or if it is a problem with the keyboard. I kind of wish more people had this problem so it'd be easier to figure out

bernjc3 said:
I tried my bluetooth headset on both my phone with JB and the N7 and they didn't cause this problem. I'm wondering if it's just a problem with how JB handles bluetooth input devices or if it is a problem with the keyboard. I kind of wish more people had this problem so it'd be easier to figure out
Click to expand...
Click to collapse
I'm having it where my logitech hangs on a letter and goes "wwwwwwww" when doing a search in Chrome or Google Now - evernote or anything else? it works fine. Maybe a jellybean issue? not sure

sthig said:
I'm having it where my logitech hangs on a letter and goes "wwwwwwww" when doing a search in Chrome or Google Now - evernote or anything else? it works fine. Maybe a jellybean issue? not sure
Click to expand...
Click to collapse
I'd say its pretty much certainly a JB issue.
Don't forget theres only a few JB devices at the moment, when it becomes more mainstream I think issues like this will be sorted.
I can't tell you more though sorry :/

Wilks3y said:
I'd say its pretty much certainly a JB issue.
Don't forget theres only a few JB devices at the moment, when it becomes more mainstream I think issues like this will be sorted.
I can't tell you more though sorry :/
Click to expand...
Click to collapse
Aside from layout issues, I have found my HP Touchpad keyboard to work flawlessly with my N7. Only bit of strangeness I have found, other than layout weirdness (I have a German QWERTZ model) is if I accidentally lean on the lock key too many times, it causes a reset of the tablet (which is almost expected when you think about the repeat rate of a keyboard vs the click & hold nature of the power button on the tablet).
For the record:
Rooted w/ CWM
Standard kernel
Standard 4.1.1 ROM
Cheers,
0

Using the same keyboard here. It does refresh once when connected but doesn't appear to refresh when disconnected. When I first got it it would double the first capitalized letter of a sentence but I fixed that by turning off auto capitalization. Other than that I've had no other issue and am actually happy with it. Other than trying a new set of batteries the only thing I can think of in your situation is that you might've have gotten an older firmware or hardware revision. Just for comparison, under the battery cover my P/N is Y-R0021 and Duracell batteries that came with it are dated 2011/11 (use by MAR 2018).
Is the single refresh when connected really that big of an issue? Just trying to understand.

Wilks3y said:
I'd say its pretty much certainly a JB issue.
Click to expand...
Click to collapse
At least for the repeating keys, I'd have to agree that it's a JB issue. I have the same keyboard and I occasionally get the key repeat issue on my phone with CM10. My son has a Microsoft keyboard and gets the key repeat issue much more often, also with CM10 but on a different phone.

Wilks3y said:
I'd say its pretty much certainly a JB issue.
Don't forget theres only a few JB devices at the moment, when it becomes more mainstream I think issues like this will be sorted.
I can't tell you more though sorry :/
Click to expand...
Click to collapse
I agree because I had BT issues with 4.2 Cyanogen flash on my TAB 2 .

tbong777 said:
I agree because I had BT issues with 4.2 Cyanogen flash on my TAB 2 .
Click to expand...
Click to collapse
4.2 is apparently a whole new can of worms -- Google and Broadcom rewrote the Bluetooth stack from scratch for 4.2, supposedly to improve performance and device support.

Have the same keyboard, to connect make sure the keyboard is off then turn on tablets Bluetooth then the keyboard, sometimes when it disconnects, it crashes the app your in, but many. That's just me
Sent from my Nexus 7 using xda app-developers app

Random touch/input lag

My biggest issue with this phone is that every now and then my phone becomes very unresponsive in relation to the user input, up to a point where trying to type becomes frustrating. Actually, you can only notice this behavior while typing. Only rebooting or putting the CPU's governor into performance mode seems to help.
It happened to me for almost half a year on PixelExperience rom + HEX Kernel. Motivated by the thread's responses, I decided to switch to Havoc and even left its default Kernel, just to try a completely different software.
To my surprise, the behavior is exactly the same, every now and then that lag appears and makes typing in the keyboard very hard.
Any ideas? Is this happening to any of you? Is there a way to automatically change the governor when the keyboard is launched?

This happens to me too.. just typing on the keyboard, I didn't mind it as it maybe an app issue (referring to Messenger) but when I am playing this game (Mobile Legends) were most of the time it won't respond to when tapping the skills buttons.
That made me thinking if it is an issue with the phone. I'm just hoping its just an app problem. Mine is stock and just recently put in the Poco launcher.

I didn't realize it could also impact gaming,as I my self don't play. I was about to ask if you could try setting your cpu governor to performance and check the response but I see that you are in stock rom.
I will probably try another rom soon, and the latest hex kernel. However, having installed the latest havoc after more than have year different, and seeing the same issue, I suspect the problem is way bigger.

My phone has exactly the same problem. It is intermittent and really frustrating ....

That's the mistake. Is it worth sending to a manufacturer's service? :-S

I have the same problem, right now I'm on stock rom but also had this problem in miui (converted to 6x), I think is a hardware problem.

I would like to know if everyone is having this problem or not. I feel like it should be a hardware problem but at the same time the fact that it is intermittent could be an indication that there something behind it that we don't know, and maybe could be fixed by software.
I think hat putting it on performance doesn't fix it completely when it happens.

Yes I have the same problem, i thought it could be fixed by changing rom but seems like it wont be fixed by doing that.
---------- Post added at 06:01 PM ---------- Previous post was at 05:59 PM ----------
Interesting, reading on internet, it seems like it is an issue with the google keyboard and swipe to text feature, i have read that disabling it fixes the issue, will try to do so and report if something happens.

alexche77 said:
Yes I have the same problem, i thought it could be fixed by changing rom but seems like it wont be fixed by doing that.
---------- Post added at 06:01 PM ---------- Previous post was at 05:59 PM ----------
Interesting, reading on internet, it seems like it is an issue with the google keyboard and swipe to text feature, i have read that disabling it fixes the issue, will try to do so and report if something happens.
Click to expand...
Click to collapse
I don't use the google keyboard ever. I use swift key. Will try that anyway. But I see the lag also in the apps and launcher as well.

Well, issue is fixed, it was actually the gesture typing that was causing the issue.
Anyways, try disabling similar functionality on swift keyboard, or try using a lighter keyboard.
I recommend Google keyboard.

alexche77 said:
Well, issue is fixed, it was actually the gesture typing that was causing the issue.
Anyways, try disabling similar functionality on swift keyboard, or try using a lighter keyboard.
I recommend Google keyboard.
Click to expand...
Click to collapse
I don't think it is related to google keyboard as it also happens while playing games when keyboard is not shown, please continue to test with swipe typing disable and report back

I have same problem with Swiftkey keyboard so it is not google keyboard related, in games like trials frontier and asphalt 9 too

I am back, you are right, it is giving me problems, is not always, but it is there.
Hmm.
I would debug it if I knew how to recreate it, but unfortunately it is really hard to replicate because it happens randomly
---------- Post added at 09:17 AM ---------- Previous post was at 09:09 AM ----------
Reading around I found that playing with the gpu settings in developer options might solve the issue.
Will do and report if anything changes.

godlesplay said:
I have same problem with Swiftkey keyboard so it is not google keyboard related, in games like trials frontier and asphalt 9 too
Click to expand...
Click to collapse
I dont have the A2 but was experiencing the same issue on my Mi8. I resolved the issue ( the exact same issue that you guys are having ) by changing the kernel default setting to Schedutil, I had it set to to conservative.
This may or may not help you, but it's definitely worth checking. Also, this issue happened a couple of months ago on the Miui EU Developer rom, so it could be a bug with the OS as well.

Thanks for the advice but I'm fully stock so I can't change kernel governor

I have this issue too. Keyboard laggs when typing. Touchscreen not working. I rebooted many times but the problem still persists. Then i installed Touchscreen Repair from Playstore. It seems to fix the problem. I can't confirm how good the app is cause i've just install it 2hrs ago. You guys should give it a try. The name of the app is Touchscreen Repair. All the best!
Sent from my Mi A2 using Tapatalk Pro

sorry for ressurect an old topic, but i did some research and found some interesting stuff:
Aparently this is a problem that occurs commonly on white screen Xiaomi phones (mine is gold) because they use different hardware for the black and white versions.
After i read this some people posted that comparing their other Xiaomi phones like Redmi notes this problem also occurs and just on the white phones.
I still doesn't have a solution, it might be a shot to replace the screen for a black one but i couldn't find anybody who did this to know if it's going to work

uttashmori01 said:
I have this issue too. Keyboard laggs when typing. Touchscreen not working. I rebooted many times but the problem still persists. Then i installed Touchscreen Repair from Playstore. It seems to fix the problem. I can't confirm how good the app is cause i've just install it 2hrs ago. You guys should give it a try. The name of the app is Touchscreen Repair. All the best!
Click to expand...
Click to collapse
Yes, that app seems to fix the problem for me. Thanks!

Well just came here to update on the touch issue i had on almost every ROM (stock included)
Whenever the touch issue happens, nowadays i just hit the touchscreen hard using a single fingertip (like a hammer) and it starts working really, really good! I mean so good that even restarting the phone didn't fix it to this level haha ?
Earlier i just locked-unlocked the screen but this didn't always work. Restarting worked but its not really feasible always.
This solution is soo damn good in my phone right now that I can use this phone for a year from now if my screen doesn't break from the hammering ? earlier was thinking to exchange it with realme x2 pro real soon.

rahulmanpur said:
well just came here to update on the touch issue i had on almost every rom (stock included)
whenever the touch issue happens, nowadays i just hit the touchscreen hard using a single fingertip (like a hammer) and it starts working really, really good! I mean so good that even restarting the phone didn't fix it to this level haha
earlier i just locked-unlocked the screen but this didn't always work. Restarting worked but its not really feasible always.
This solution is soo damn good in my phone right now that i can use this phone for a year from now if my screen doesn't break from the hammering earlier was thinking to exchange it with realme x2 pro real soon.
Click to expand...
Click to collapse
what solution?