Database Users

Momentary black screen

Anyone had this one? Since 4.2, the screen momentarily goes black, with a similar transition to hitting the task manage soft key, but transiting to the left in landscape, then flicks back to normal use. Happens in apps...screws up some games, puts others into pause mode as if a task has been switched. Thought it might have had something to do with auto rotation going a bit bonkers, but not sure....
Not heard any reports...have looked through the forum, couldn't find anything.
Weird...it just did it then....but the keyboard stayed on screen, xda disappeared to the left...
Any thoughts and thanks in advance
Sent from my Nexus 7 using xda app-developers app

Thank God! Thought it was just me!
Sent from my Nexus 7 using Tapatalk 2

Ok..just happened again while in portrait mode. Definitely saw it flick to landscape. Rotation is locked btw.
Hmmmmm.....
Sent from my Nexus 7 using xda app-developers app

It happened to me three times last night after update to 4.2 :crying:

Ok...so, while sitting in a tedious meeting, Nexus in landscape, propped up with its folding case the screened flipped upside down and stayed upside down. 3 times. My ipad using colleague giggled.
Any way to recalibrate the tilt sensor? Or any other suggestions?
It's not the end of the world but...there must be a patch solution or other? Before 4.1 I used the auto rotate app, I forget its correct name...
Thoughts?
Sent from my GT-I9100P using xda app-developers app

I used logcat to monitor the Nexus 7 until the random rotation happened. After looking at the log I realized that it was always the same process being activated and that process was nVision.
Since nVision always rotates into landscape mode I was suspicious that perhaps when it tried to update itself in the background it was changing the screen orientation. I disabled notifications and then uninstalled the app and the problem has completely gone away. I have had no random rotations at all in the last 24 hours.
Sent from my Nexus 7 using Tapatalk 2

Thanks very much. Ill give it a try and report back
Sent from my Nexus 7 using xda app-developers app

Okie doke.
For the record.... 48 hours and no random flips to landscape and back. I'd be willing to be a substantial amount of money this was the culprit. However, whether this is a 4.2 issue per se vs. Bad behavior in nVision is an open Question.
Sent from my Nexus 7 using Tapatalk 2

Ok. Disabling nvision notifications still flips out. Will uninstall later.
Thanks again
Sent from my GT-I9100P using xda app-developers app

Uninstall it. I still think it checks in and screws your screen, whether it shows you the notification or not.
Sent from my Nexus 7 using Tapatalk 2

Uninstalled...all good so far. Woooooo!
Cheers!
Sent from my Nexus 7 using xda app-developers app

[Q] Nexus 4 weird display issue

I got my Nexus 4 yesterday, and just today I've noticed that when in dark screen (locked, or simply the settings page) and outside of the house I see kind of weird black lines on the whole display screen, going form top to bottom making some 3 small square shapes after the others all over the display, can be obviously seen when display facing bright sky outside in almost any angel, but in room light barely can see them with certain angels.
will make a photo of it asap.
p.s. I've never seen a notification light yet on the middle bottom of my device.
Anyone same "problem" with display?

Its the digitizer.
Sent from my Nexus 4 using xda premium

El Daddy said:
Its the digitizer.
Sent from my Nexus 4 using xda premium
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Could you link an example image from goolge or something to make sure it is what I mean? can't seem to find something alike..is this normal?

I can confirm that its the digitizer I too have found that with this phone it is very easy to see even with weak light I see it when I get the right angle. It looks like you described but the vertical lines look more like dots arranged neatly than lines on mine.
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Just noticed the same thing on my device. Thought I was tripping out maaaaaaan
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Its the digitizer, its normal. I think its because of the "zero gap" technology thing ; the display and the digitizer are right below the glass.
As for the notification light, download Lightflow from the Play Store. Works great.
Sent from my Nexus 4 using xda app-developers app

For the notification LED, make sure you enable the " Pulse notification light" option in Settings->Display. Using Lightflow on top will give you lots of customisation options though.
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irbajacka said:
Could you link an example image from goolge or something to make sure it is what I mean? can't seem to find something alike..is this normal?
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Click to collapse
I am now noticing the same issue in my nexus 4. If it is because of zero gap technology then why it is not there in iPhone 5 and other phones which use this technology?
I also notice that my brother who got the phone some time in November 2012 is not having this issue. I got the phone in Jan 2013...is it issue with only the new lots?
What google and LG are doing to address this issue?
-Chetan V S

Its the digitizer. I mean seriously why are y'all complaining about that, its normal.
Sent from my Nexus 4 using xda premium

[Q] Touch detected incorrectly right after power on

This has been happening since I remember getting the device. About 3/5 times when I bring my device out of standby and I go to enter my pattern the touch is off. I have "show touches" enabled in developer options to verify this.
When I put my finger on the top left dot of the 3X3 pattern, which is around the middle-left of the screen, it is detecting that I'm touching the device all the way in the top left corner. If I drag my finger around the screen, the touch is offset. If I remove my finger from the screen and place it back on the screen, then it is properly detected.
I didn't run on stock for very long, maybe an hour or two, before I rooted and flashed AOKP. Right now I'm on WhiteHawkx's unnoficial AOKP nightly and Franco's Kernel (r122).
My plan is to flash back to stock and see if it still happens then. But currently I have a really busy week ahead and don't have time so looking for insight.
Anyone else experience something like this?

No one? So I guess I should call Google for a warranty exchange?
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fone_fanatic said:
No one? So I guess I should call Google for a warranty exchange?
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I would do that if I were you.
Sent from my Nexus 4 using xda app-developers app

Try recalibrating the touch screen, I think there's an option in settings.
Sent from my HTC One X using xda app-developers app

It's franco's kernel, I have it too.

.coomb. said:
It's franco's kernel, I have it too.
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Click to collapse
I posted in that thread a while ago about this issue and no one confirmed. Thanks for your reply. I'm going to go back to stock this weekend and run it for a couple days to verify.
Sent from my Nexus 4 using xda premium

fone_fanatic said:
I posted in that thread a while ago about this issue and no one confirmed. Thanks for your reply. I'm going to go back to stock this weekend and run it for a couple days to verify.
Sent from my Nexus 4 using xda premium
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Let me know your results. If it persists, I might have to send mine back.

I'm on stock ROM. I have this issue too, when I power on and drag to unlock, I get a delayed mismatched response. I have to power off then back on again.
It started this recently, so might be app related.
Sent from my Nexus 4 using xda app-developers app

Vyker said:
I'm on stock ROM. I have this issue too, when I power on and drag to unlock, I get a delayed mismatched response. I have to power off then back on again.
It started this recently, so might be app related.
Sent from my Nexus 4 using xda app-developers app
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What kernel are you running?

Vyker said:
I'm on stock ROM. I have this issue too, when I power on and drag to unlock, I get a delayed mismatched response. I have to power off then back on again.
It started this recently, so might be app related.
Sent from my Nexus 4 using xda app-developers app
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Turn on " show touches" in developer options to help verify if you the save thing happening.
I don't have to reboot mine but I have to lift finger of screen and put back on to get it to properly detect where the touch should be.
Sent from my Nexus 4 using xda premium

So just as a follow up I reverted to stock for 5 days and didn't see this issue. Flashed back to AOKP and Franco kernel and now it's happening randomly when I go to hang up a call. I tap on the red hang up bar and it detects the touch in the top left corner.
I called Google play support but since I didn't buy my device from them they directed me to lg.
I'm starting to think it's my screen protector.
Sent from my Nexus 4 using xda premium

lol, I had insensitivity issues on the bottom of the screen way back, I use a displayed pin pad on lockscreen so I just tap a certain spot to unlock, I sometimes wonder why the digitizer register incorrectly.
flashing a different kernel helped, I'm using motleys.

Have had this problem since launch, im on stock rooted, maybe its a certain app?
If anyone wants to compare their apps with me to find a similar problem, shoot me a pm

Bottom screen not responding well

So I have this weird issue. The very bottom of my screen does not respond well! At first I thought it was a bug with the navigation bar, tried several roms and tried PIE controls until I figured that there is something wrong. I have the navbar now set at 48 dpi and I have to press at middle of it to work, where the very bottom is dead. I activated 360 rotation so that my statusbar now is at the bottom of the screen instead of navbar and it does not respond at all! Anyone can explain ?
Sent from my Nexus 4 using xda app-developers app

Anyone please ?
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Ensifolk said:
Anyone please ?
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I think you should try a clean flash.. I never had such problem... about you
From when this problem has been started? please share more information so that we can help you..

Rohit02 said:
I think you should try a clean flash.. I never had such problem... about you
From when this problem has been started? please share more information so that we can help you..
Click to expand...
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I have Tried like lots of different roms with clean fresh installation and the problem is still there ! I think its a hardware problem. For ezample right now if I set my navbar to 32 dpi it wont respond at all because the bottom of my screen have lost the touch sensitivity. I have droppes my phone several times, could that be it ? I cant really remember when I exactly started noticing the issue...but just few days ago...I have tried PIE and same **** :s I have to set the trigger area to max for it to respond...and yes im talking about experiments after a clean install before installing ANY third party app
Sent from my Nexus 4 using xda app-developers app

Ensifolk said:
I have Tried like lots of different roms with clean fresh installation and the problem is still there ! I think its a hardware problem. For ezample right now if I set my navbar to 32 dpi it wont respond at all because the bottom of my screen have lost the touch sensitivity. I have droppes my phone several times, could that be it ? I cant really remember when I exactly started noticing the issue...but just few days ago...I have tried PIE and same **** :s I have to set the trigger area to max for it to respond...and yes im talking about experiments after a clean install before installing ANY third party app
Sent from my Nexus 4 using xda app-developers app
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okays... Now I think it surely a hardware problem,as you said you havr also dropped your phone several times.. All the best goto the service centre for the repair.. dont tell them that you have dropped your phone else they will charge you badly even if you are under warranty.. You are welcome..

Rohit02 said:
okays... Now I think it surely a hardware problem,as you said you havr also dropped your phone several times.. All the best goto the service centre for the repair.. dont tell them that you have dropped your phone else they will charge you badly even if you are under warranty.. You are welcome..
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Think Im gonna give no damn about it and of course buy the nexus 5, which I would have done either way..but im surprised how can a touchscreen lose a part of its sensitivity somewhere on the screen ?
Sent from my Nexus 4 using xda app-developers app

If you look closely at your screen at an angle with the screen off you will be able to see the digitizer matrix that is fused to the screen.
It is a series of squares.
Each of them squares has 3 horizontal lines and one vertical.
Behind the bezel there will be the circuitry that connects every horizontal and vertical line
If say for instance after one of your phone drops it has damaged one of the connectors at the side, you will lose the entire row of touch detection. Which is probably what has happened
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Ensifolk said:
Think Im gonna give no damn about it and of course buy the nexus 5, which I would have done either way..but im surprised how can a touchscreen lose a part of its sensitivity somewhere on the screen ?
Sent from my Nexus 4 using xda app-developers app
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Alex240188 said:
If you look closely at your screen at an angle with the screen off you will be able to see the digitizer matrix that is fused to the screen.
It is a series of squares.
Each of them squares has 3 horizontal lines and one vertical.
Behind the bezel there will be the circuitry that connects every horizontal and vertical line
If say for instance after one of your phone drops it has damaged one of the connectors at the side, you will lose the entire row of touch detection. Which is probably what has happened
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Alex is right i had this happen to my moto defy. I'd say get it done under warrnty no matter if youre keeping or selling. Improve your resale value and protect you from having the entire digitizer die on you

Screen sensitivity

Been having problems with my screen lately. Its hard to explain but some of the screen isn't responding to touch.
I'll click on find on page in chrome and it will go to the option below it. Seems to be very unresponsive too. Some of the keys dont work when typing. When I press the power and unlock they start to work again.
Running PA beta 4 and more recently beta 5 both with the same problem. Pretty sure the problem came half way through using beta 4.
Anyone know what's going on?
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Basically when I go down from where that pointer is it is unresponsive. Anyone know why this is?
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