Touchscreen issues - Shield Tablet Q&A, Help & Troubleshooting

Sometimes I have touchscreen issues were when I swipe down in chrome it only scrolls slightly, I also have trouble unlocking it because sometimes it doesn't register me swiping up on the lockscreen. I was on Temaseks Cyanogenmod, and also on Bliss and both roms did the same thing. I restored my backup in TWRP to stock marshmallow and now there are no touchscreen issues. Only thing I notice on stock is that its not as snappy, its a bit laggy. Anyone know what's causing these touchscreen issues?

I was thinking today and I thought maybe I should update my firmware from the 4.0 ota and see if that fixes it, I will try it tonight and see how it goes.

I recently had touchscreen issues while using the recent BitO K4-005 kernel. But after flashing the corresponding DTB file, those were gone. Maybe something like that could help.

Related

[Q] Which kernels were compatible with CM10?

So,
I've gotten use to CM10. For months after EOS4 came around, it was ungodly slow. Even after switching off the media scanner, using a custom kernel, etc... the UI FR and general responsiveness was extremely lacking. It seems that it's been the Go-To ROM of choice for many, many months now, and the performance situation may have changed, but i'm hesitant to flash it, even if the only reason is that everything works great, other than a bit of bitrot here and there with CM10-- which brings me to my issue:
KAT kernel (version 69, of course (haha! seriously outdated)) seems to blow out my YouTube DPI, which can be fixed simply by setting the DPI to 150 or so n XPosed, and a quick dirty flash/ update kills the bitrot i run into every couple months...this time, however, i was clearing space, and organizing my .zips, when i decided it would be a brilliant idea to put all my AOSP ROMs together, all my mods & themes/addns together, and all my kernels together. The issue is, I cant for the life of me remember which kernel, and kernel version i was using! Besides the funky DPI behavior, KAT also introduces an extreme degree of video ghosting and stuttering.
I've tried a couple older kernels, but often, I'd find out the kernel was for ICS, and I'd be stuck at the boot screen.
Can someone please point me in the direction of 1-2 CM10 Kernels?
Bonus round: have the EOS issues been fixed definitively. Or do you still have to bang yuor head against the wall, look t your tablet upside down, and do some voodoo on it to get it workng?
I have never had issues like they with EOS4, so I cannot say if your issues are still around. Most users who have issues with EOS I believe did not do a factory reset, or restored system settings with Titanium Backup.
But, I would try the KatKernel 103 lidpatch CM10.1 version:
http://downloads.timduru.org/android/tf101/K.A.T/kernel/Tim_KatKernel_103_JB4.2_Lidpatch_CM10.1.zip
Edit - this is a cm10.1. If you are still on CM10, 69/70 are the most recent compatible ones.

[Q] multitouch problems after flashing custom rom

As in the thread I have a problem with multitouch after I decided to flash cyanogenmod 10.1.1 the same thing happens when I install RC5 release of CM10. I must eliminate it as I cannot play games and even zoom anything in browser
What happens is : sometimes but rarely multitouch works flawlessly so I can do anything but even after locking screen problems occur again. I checked it with multitouch testing applications and when one figer is on the screen everything is fine. When I add second finger multitouch lags a lot , often cannot see second finger or it cannot see my fingers moving at all. Tried to callibrate multitouch, do wipe/factory reset but still it's no better.
I would like to repair it somehow but I lack knowldge, that's why I'm posting here. I also posted in cyanogenmod forum but they told me get to here and check if there are bootloader updates or radio/baseband updates. I don't know if there are because I thought that with ROM i get everything whats new and if I have newest cyanogenmod stable then i don't need any more updates.
Please help me. I would be very grateful. I wrote what's wrong as well as I can but still I will answear any question if I can. Thanks in advance.

[Q] Problems with touchscreen ?

Hi there,
someone has problems that the touchscreen is not responding?
Have CM11 - current nightly, Fournace kernel 1.0.2 and OPO lockscreen flashed ....,Only the lower right corner is responsive to inputs.
I had the problems also 2 times with the CM11S-ROM.
Has anyone else this problem?
Sun_Dancer said:
Hi there,
someone has problems that the touchscreen is not responding?
Have CM11 - current nightly, Fournace kernel 1.0.2 and OPO lockscreen flashed ....,Only the lower right corner is responsive to inputs.
I had the problems also 2 times with the CM11S-ROM.
Has anyone else this problem?
Click to expand...
Click to collapse
I have the same problem. It's intermittent and goes away after a while but it comes back often enough to make my device unusable when needed. I literally can't answer calls or log into my device because of this. Is no one else having this problem? The issue persists into recovery so it might be hardware.
Franco r13 has new touch drivers implemented. Try it.
OP you say it as if your screen is never responsive, only in the bottom of the screen. That sounds like a RMA.
I will look into Franco r13 tonight. In the meantime, here is how my problem happens:
- Most of the time touch screen is working as expected
- Sometimes the touch screen becomes unresponsive to many areas on the screen, but some small areas still work
- When the above issue occurs, it is only temporary. If I let the phone sit for a few minutes it usually comes back.
- Restarting does not fix the problem, and the problem persists into recovery mode (I forget which recovery I have, but it has touch screen input)
- The problem started with phone being 100% stock, although only after the OTA update a few days ago
notten said:
I will look into Franco r13 tonight. In the meantime, here is how my problem happens:
- Most of the time touch screen is working as expected
- Sometimes the touch screen becomes unresponsive to many areas on the screen, but some small areas still work
- When the above issue occurs, it is only temporary. If I let the phone sit for a few minutes it usually comes back.
- Restarting does not fix the problem, and the problem persists into recovery mode (I forget which recovery I have, but it has touch screen input)
- The problem started with phone being 100% stock, although only after the OTA update a few days ago
Click to expand...
Click to collapse
Yeah, try Franco then. Mine feels better now. It wasn't too responsive before either.

[Q] Pixelated flashing lines on display screen

I've been having screen/display issues (not the yellow hue and separate of the touch screen sensitivity problems). Every now and again, I get flashing, pixilated horizontal lines. I don't see any dead pixels and when it's not blipping the screen seems to display flawlessly, so I'm not sure if it's a software issue or if the hardware is failing. Also it's not isolated to one particular area, it jumps around. Anyone have this problem? Any fixes? I haven't been able to find anything on it. PLEASE HELP. Below is a video of the problem.
akaja24 said:
I've been having screen/display issues (not the yellow hue and separate of the touch screen sensitivity problems). Every now and again, I get flashing, pixilated horizontal lines. I don't see any dead pixels and when it's not blipping the screen seems to display flawlessly, so I'm not sure if it's a software issue or if the hardware is failing. Also it's not isolated to one particular area, it jumps around. Anyone have this problem? Any fixes? I haven't been able to find anything on it. PLEASE HELP. Below is a video of the problem.
Click to expand...
Click to collapse
Are you completely stock? Any custom kernel? Any rom?
Usually it's a kernel issue - tearing, but it's only present on custom kernels (never came across on the stock cm11 kernel). You might wanna try a different kernel though, if you're comfortable with that.
I have the same issue on my stock rom with stock kernel. the only thing i have changed was the developer options. i changed the screen animation time.
mupper said:
I have the same issue on my stock rom with stock kernel. the only thing i have changed was the developer options. i changed the screen animation time.
Click to expand...
Click to collapse
Was it working before those changes?
edit:
Perhaps this might help?
http://forum.xda-developers.com/oneplus-one/general/ghost-touches-flickering-graphics-t2900756
akaja24 said:
I've been having screen/display issues (not the yellow hue and separate of the touch screen sensitivity problems). Every now and again, I get flashing, pixilated horizontal lines. I don't see any dead pixels and when it's not blipping the screen seems to display flawlessly, so I'm not sure if it's a software issue or if the hardware is failing. Also it's not isolated to one particular area, it jumps around. Anyone have this problem? Any fixes? I haven't been able to find anything on it. PLEASE HELP. Below is a video of the problem.
Click to expand...
Click to collapse
I had exact same issue during recording a video yesterday night !! I am latest mahdi and latest franco...
Funny thing is it went away once i exited the camera... what rom and kernel are u using ?
I've been having the same issue too. I don't have a solution for you, though. I haven't been able to find much about it.
Same issue here, stock all the way, only been since latest update. The update didn't flash properly, it gave an error stating it couldn't be located but i went through the files and it was there and then upgraded OK
I had the same problem. Selecting "Force GPU Rendering" in developer options cured it.
i have stock everything. i'm not rooted.
a reboot fixes the problem temporarily. shoot, all the issues i've ran into with this phone thus far (like the GPS not locking on) is fixed by a reboot. i know a reboot is good to do every now-and-again regardless, but having to do it constantly to fix issues is the sign of a failing device and is very annoying; it shouldn't be something you have to do with a brand new device.
i am facing this too randomly. Am on rooted 38R with Franco kernel. Rebooting is a temp cure but it will frustrating to keep doing it.
This happened to me after getting 38R. Fortunately it hasn't been back since a hard reboot. It would show up on Youtube & when dragging down the notifications area.
I had this today on PAC ROM. When I unlock phone and lock ring animation dots flash up made lines come across screen not sure what it was or why. Just rebooted phone. Back to normal. But trying out vanir later tonight try something abit different.
Also experiencing this here.
Stock ROM, clean 38R install.
Stock kernel.
Rooted, with a few xposed modules.
Started a day or two ago. Haven't found a way to recreate it. When it does happen, a reboot remedies it, but only temporarily.
I will attempt to screenrec it the next time.
I find it interesting that I only see mentions of this starting recently.
Same problem for me since the last update. Restarting the Phone solves the problem for some times. Maybe a driver issue?
Glad to see that it is not a hardware issue.
Same here
Same here, mahdi-2.8-bacon-20141001 ROM, enabled "Force GPU rendering" in Developer options, let's see if this comes back!
I have the same problem on latest cm nightly with stock kernel. And dev options works sometimes but it resets on reboot and my phone reboots randomly all the time. I'm starting to hate this device
Sent from my A0001 using Tapatalk
I also have the same issue on Stock 38R update + franco kernel r27
It happens after the latest kernel update, before I never had this lines.
Lucky for me I don't have any reboots now but I fear that will come to pass as well.
Got the same problem with Mahdi Rom 2.8 - 20141016
Will be solved in Franco Kernel r28,he just confirmed this on his kernel thread.
Sent from my OnePlus One using XDA Free mobile app
same issue here. i have to reboot. its happened on stock and AK kernel. will try enabling force gpu rendering and see if it comes back

New stable cm13 seems laggy.

Ever since updating to the newest version of cm13, my phone seems laggy and slow in the following scenarios:
- Waking up from standby
- Switching between apps
- Going back to home
- Sometimes when navigating in apps
Has somebody else noticed these issues or is this maybe just my device getting old?
Should I got to nightlies or unofficial lineageOS builds or maybe go back a build? Any help would be appreciated especially if this is something someone else noticed as well.

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