Lockscreen Delay and Non-responsive to Touch

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I purchased a Nexus 4 8GB on launch day. The device consistently (multiple times per day) would be non-responsive to my touch on the lock screen when I pushed the power button to do a PIN unlock. I had to cycle the power button to get it to respond to my touch.

I called in an RMA the other night, Google overnighted a new phone to me. The same problem occurs, I haven't installed ANY programs. What are the odds it's hardware and not software?

Does nobody else have this problem???

I can replicate it: Turn the screen off, put five fingers on the screen, at the same time push the power button to bring up the unlock screen. My screen will usually not respond, or it delays a response by a couple seconds. It can take a couple attempts to get it to do it.

The only thing I added was the Google News and Weather widget to the main screen.

Lockscreen Delay and Non-responsive to Touch

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Originally Posted by crazeco

I purchased a Nexus 4 8GB on launch day. The device consistently (multiple times per day) would be non-responsive to my touch on the lock screen when I pushed the power button to do a PIN unlock. I had to cycle the power button to get it to respond to my touch.

I called in an RMA the other night, Google overnighted a new phone to me. The same problem occurs, I haven't installed ANY programs. What are the odds it's hardware and not software?

Does nobody else have this problem???

I can replicate it: Turn the screen off, put five fingers on the screen, at the same time push the power button to bring up the unlock screen. My screen will usually not respond, or it delays a response by a couple seconds. It can take a couple attempts to get it to do it.

The only thing I added was the Google News and Weather widget to the main screen.

did it hppen will charging???mny facing this problm....with quad core cpu 2 gb ram so smooth it should be...have try install launcher???i watch the video in other web...it so frustating..mayb upgrade/update jelly bean solve the problem..i dont know just guessing...mayb that y it upgradeable...

Re: Lockscreen Delay and Non-responsive to Touch

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Originally Posted by crazeco

I purchased a Nexus 4 8GB on launch day. The device consistently (multiple times per day) would be non-responsive to my touch on the lock screen when I pushed the power button to do a PIN unlock. I had to cycle the power button to get it to respond to my touch.

I called in an RMA the other night, Google overnighted a new phone to me. The same problem occurs, I haven't installed ANY programs. What are the odds it's hardware and not software?

Does nobody else have this problem???

I can replicate it: Turn the screen off, put five fingers on the screen, at the same time push the power button to bring up the unlock screen. My screen will usually not respond, or it delays a response by a couple seconds. It can take a couple attempts to get it to do it.

The only thing I added was the Google News and Weather widget to the main screen.

I just tried doing that around 10 times and I couldn't get my screen to not respond. Have you tried flashing a different rom to see if it helps? Switching roms is the best way to pinpoint software or hardware as a culprit.

Originally Posted by yoft1

I just tried doing that around 10 times and I couldn't get my screen to not respond. Have you tried flashing a different rom to see if it helps? Switching roms is the best way to pinpoint software or hardware as a culprit.

I updated to 4.2.2 ... I can still get it to become non-responsive. Try hitting numbers very quickly after you hit the power button. Make sure all five fingers are on the screen when you hit the power button.

I also have this issue. I press the power button to turn the screen on, and it will be unresponsive until I turn the screen off then turn it on again and all is fine. Sometimes it is just really laggy for 10 seconds, then it returns to normal. I am thinking this may be a bug in the stock kernel, but I'm not sure.

Re: Lockscreen Delay and Non-responsive to Touch

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What programs do you have installed and which widgets do you use? Give me a complete list.

How many Google email accounts are added to your phone?




Sent from my Nexus 4 using Tapatalk 2

Originally Posted by crazeco

What programs do you have installed and which widgets do you use? Give me a complete list.

How many Google email accounts are added to your phone?




Sent from my Nexus 4 using Tapatalk 2

I use apex launcher, have the Google now widget and clock, and only one gmail account. I still think it is the stock kernel, I have flashed Franco's kernel this morning, and have yet to encounter the issue. I will report back at the end of today of the results.

I am rooted and have been encountering this in stock 4.2.1 and 4.2.2 and CM 10.1.

Re: Lockscreen Delay and Non-responsive to Touch

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Why do you think so few people notice it? Now that I've had it on two separate devices... It has to be software/kernel. Please do update.



Sent from my Nexus 4 using Tapatalk 2

Franco's kernel didn't work. Still have the issue, though less occurring.

---------- Post added at 06:25 PM ---------- Previous post was at 05:59 PM ----------

Okay, so if there is any multi-touch on the screen when it is turned on, it will be unresponsive. The OP says put five fingers on the screen and turn on the screen (while still holding the fingers on the screen). However, the same results can be replicated by only having two fingers and turning on the screen. What this means is, say, if you are holding the phone, and your thumb and finger are on the screen (on the sides, even barely) and turn on the screen, you will get an unresponsive touchscreen.

Multi-touch still works so it isn't a defective touch panel. I don't think this is any hardware issue other than the hardware used in the few affected phones could be of a different revision number, so the kernel isn't working with it the same as the commonly used panel. I could be wrong, but this is just the conclusions I can draw from this.

Re: Lockscreen Delay and Non-responsive to Touch

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Originally Posted by crazeco

Why do you think so few people notice it? Now that I've had it on two separate devices... It has to be software/kernel. Please do update.



Sent from my Nexus 4 using Tapatalk 2

I don't know what to tell you. I've tried it with every number of fingers from 1 to 5 on the screen when I turn it on. I've tried it with and without a PIN. In no way shape or form can I get my screen to lag. I told you before to wipe and try flashing a different rom as that is the most comprehensive way to separate a software issue from a hardware issue. Not updating, but root, wipe, and flash.

Sent from my Nexus 4 using xda premium