Database Users

nexus 7 screen flickering

So this only Happens when I'm on Google chrome and I've noticed that ocassionally that the screen flickers, its not crazy annoying but definitely distracting. Have any of you had this problem?
Hopefully any of you aren't epileptic.

joshintoshin said:
So this only Happens when I'm on Google chrome and I've noticed that ocassionally that the screen flickers, its not crazy annoying but definitely distracting. Have any of you had this problem?
Hopefully any of you aren't epileptic.
Click to expand...
Click to collapse
I totally thought that I had either 1. developed serious eye problems or 2. broke my brand new toy At least it's not just me having this problem

Yep its a known problem.
Sent from my Nexus 7 using xda app-developers app

yeah..
joecoolman said:
I totally thought that I had either 1. developed serious eye problems or 2. broke my brand new toy At least it's not just me having this problem
Click to expand...
Click to collapse
Hopefully the next update will resolve this problem.

so set and wait.
So I should just wait for a fix and not return it over and over to try to find a good one. It has a year warranty.

I see it too!
Sent from my Galaxy Nexus

I turned off automatic brightness and I think that solved it. I think it was flickering when it was changing brightness.

its still there with auto off.
And with the brightness up but it so slight u have to be ocd like I am about my stuff to see it. But its easy to tell its not hardware because games like sonic CD are beautiful.

shamowfski said:
I turned off automatic brightness and I think that solved it. I think it was flickering when it was changing brightness.
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Click to collapse
Mine still flickers regardless.
Sent from my Nexus 7 using xda app-developers app

So is this a software problem.
Sent from my Nexus 7 using xda app-developers app

flash_beezy said:
Mine still flickers regardless.
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
It happens to mine when its on the lowest brightness setting of when "auto brightness" is on. For now I've just set the brightness to max so I don't have deal with all the flickering.. for now.

flash_beezy said:
Mine still flickers regardless.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Mine as well
Sent from my Nexus 7 using xda app-developers app

With my settings set to Automatically lock (immediately after sleep) and power button instantly locks with a visible patter screen lock, my Nexus 7 on wake-up [pushing the power button immediately] either right after an invalid pattern code (where device then sleeps) or waiting a few seconds with no activity until the device sleeps (where the Nexus 7 fades to a black screen) will have a delay in bringing up the lock screen OR sort of flicker presenting some sort of black and white bar lines background at the bottom half of the screen for a split second before bringing up the lock screen. Is this normal or it is in fact a defect?
Thanks in advance!

Not sire about that I have seen it in 3rd patty apps on all devices before. But the flicker we are seeing is like it changing the brightness up and down.
Sent from my Nexus 7 using xda app-developers app

flash_beezy said:
Mine still flickers regardless.
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
As does mine. I think people think it goes away when not on auto, because the "low" setting is about 20-25% and auto will often bring it lower than that, making the flickering worse.
At medium brightness the problem is almost, almost, non-existant.
It's also not just in chrome as some say, just most noticable on chrome's white backgrounds. I've noticed it in any app with lighter, brighter colors. I just exchanged my Nexus 7, and the new one has the exact same problem. This leads me to think the software problem is the most correct answer.

I get it every once in a while. Full brightness set, no automatic. Ill wait for a fix, doesn't bug me too bad.
Sent from my Nexus 7 using Tapatalk 2

I suspect it to be a software problem because in game it looks great. Plus in a new device like this software problems go with the territory.
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Doesn't bug me in function but I'm electronic ocd I like my stuff to be perfect.
Sent from my Nexus 7 using xda app-developers app

bpschoon said:
Mine as well
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
And mine as well I noticed my screen flickered when my batt was getting down to 10% and my brightness level was at about 1/3. But now its charged and I don't see it flickering yet. I don't know...with Chrome having a bug (lags when scrolling) and the flickering screen...I may be returning my unit? I really hate to because aside from my issues, it's an awesome device!

Don't take it back they well fix it with a update.
Sent from my Nexus 7 using xda app-developers app

Screen problem

Hi all,
My Nexus7 screen will automatically dim out while watching movies through apps. It will dim until all dark and i donno way to turn the screen back. The movie is still running though with sound on but no screen. I didnt turn on auto brightness. does anyone's N7 has the same issue i am having? How may I fix it, thx
Sent from my GT-N7000 using xda premium

No one has screen dimming problem?
Sent from my GT-N7000 using xda premium

I don't know if screen flicker and screen dimming are the same thing but I encounter a similar issue whenever brightness is below 30 percent.... Other than that my Nexus is flawless besides a rare notification freeze
Sent from my Nexus 7

oneG said:
I don't know if screen flicker and screen dimming are the same thing but I encounter a similar issue whenever brightness is below 30 percent.... Other than that my Nexus is flawless besides a rare notification freeze
Sent from my Nexus 7
Click to expand...
Click to collapse
So, if mine is also called a screen flicker, how do I fix it?
When my N7 screen went all black out, I have to use a torch towards my N7 screen sensor to have the screen bright up again
Sent from my Nexus 7 using XDA Premium HD app

I just got mine yesterday. Not rooted but I noticed if the screen auto turns off....sometimes it is locked up. Hitting the power button won't do a thing. Have you had this problem?
Sent from my Nexus 7 using xda app-developers app

lambohoos said:
I just got mine yesterday. Not rooted but I noticed if the screen auto turns off....sometimes it is locked up. Hitting the power button won't do a thing. Have you had this problem?
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
Yes, i have this problem too. Then when I have no torch beside me for the sensor, i would need to press power button for 10sec+ for a reboot. How suck it is. This is the only thing bugging me on N7
Sent from my GT-N7000 using xda premium

I just got off the phone with Google play. Having a new unit sent to me. Glad to hear (unfortunately) you are having similar issues.
Sent from my Nexus 7 using xda app-developers app

So, no one seems to know how to fix, then it's hardware problem and have to send to ASUS?

wingod513 said:
So, no one seems to know how to fix, then it's hardware problem and have to send to ASUS?
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Click to collapse
hey!
if it is the same issue as i have (screen turns off in auto brightness or manually set the brightness to minimum), i dont think it is an hardware issue.
i think the minimum background light is set wrong in the system.
also i dont think it is hardware related, because many other owner af a n7 are reporting this issue.

testcenter said:
hey!
if it is the same issue as i have (screen turns off in auto brightness or manually set the brightness to minimum), i dont think it is an hardware issue.
i think the minimum background light is set wrong in the system.
also i dont think it is hardware related, because many other owner af a n7 are reporting this issue.
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Click to collapse
So is that means only hope is hope for next firmware fixing it?
Sent from my GT-N7000 using xda premium

i dont know... if so, i hope for a quick fix
but you could try the app
tegra prism toggle
(costs about 1$, needa root)
maybe it helps

testcenter, thanks for the recommanded app, but i not wanna root at this moment.
I guess in the mean time just not using auto brightness and pray for not dim out again
Sent from my GT-N7000 using xda premium

[ISSUES] Nexus 4 screen flicker

Is anyone else having the screen flicker on their nexus 4?

I've caught my screen flicker a few times when opening apps or closing them
Sent from my Nexus 4 using xda app-developers app

tdtylert said:
I've caught my screen flicker a few times when opening apps or closing them
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
yep same here I dont know if its a defect or 4.2.......I tried multiple roms but still same flicker.

and the list continues...

snavid972 said:
yep same here I dont know if its a defect or 4.2.......I tried multiple roms but still same flicker.
Click to expand...
Click to collapse
Hopefully its just software related
Sent from my Nexus 4 using xda app-developers app

I've never noticed my screen "flicker"; does it flash off and on again or what?

Yeah, please clarify what a flicker is... if it only happened a couple times then it probably is related to the apps or maybe a couple things going on at once.
If it is not a constant, consistent problem and had only happened a couple times then perhaps it isn't a problem at all.
sent via xda premium with nexus 7 while waiting for my back ordered Nexus 4!

Richieboy67 said:
Yeah, please clarify what a flicker is... if it only happened a couple times then it probably is related to the apps or maybe a couple things going on at once.
If it is not a constant, consistent problem and had only happened a couple times then perhaps it isn't a problem at all.
sent via xda premium with nexus 7 while waiting for my back ordered Nexus 4!
Click to expand...
Click to collapse
think of a ceiling fluoresent light flickering. It does happend alot and its not app related as it happens at the home screen too.

snavid972 said:
think of a ceiling fluoresent light flickering. It does happend alot and its not app related as it happens at the home screen too.
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Click to collapse
I've never seen my phone do that. I don't do a lot of gaming or anything real intensive though.

feedtheducks said:
and the list continues...
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Click to collapse
thats a OS issue (fixable). Not like the other hardware issues.
please stop trying to mislead people and hype the problem. thanks

I get the flicker but it's definitely app related.
When using Google music app and going to lock screen, the " widget" sort of flickers and stretches throughout the lock screen
Sent from my Nexus 4 using xda premium

My screen flickered for a good 5 minutes and even a reboot didn't fix it. I think it's hardware related because if it was software a reboot would have fixed it. Could have been a driver glitch too but I'm pretty sure a reboot would've fixed it. My flickered a lot though saw a bunch of vertical lines and discoloration. Idk if that's what you're talking about.
Sent from my Nexus 4 using Tapatalk 2

MattSkeet said:
I get the flicker but it's definitely app related.
When using Google music app and going to lock screen, the " widget" sort of flickers and stretches throughout the lock screen
Sent from my Nexus 4 using xda premium
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Click to collapse
I use Google Music a lot and I've never seen that. I just tried to replicate it and other than the usual CRT off animation I didn't see anything that I would construe as a flicker or flash.

If you hold your device in front of you with the screen on and look beyond it (i.e. over it's shoulder per say) you can see flicker. Works best in a dark room.
No big deal, but it's there.

I think its a big deal ...you spend your money for a working product..these issues need to be addressed..I thought I could trust LG again but dont think I can anymore

MattSkeet said:
I get the flicker but it's definitely app related.
When using Google music app and going to lock screen, the " widget" sort of flickers and stretches throughout the lock screen
Sent from my Nexus 4 using xda premium
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Click to collapse
I too have this issue periodically. I have had it happen with Google Music and with Pocket Casts.

thats a OS issue (fixable). Not like the other hardware issues.
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Click to collapse
Is this a known OS issue, or are you just saying it might be?
ericshmerick said:
If you hold your device in front of you with the screen on and look beyond it (i.e. over it's shoulder per say) you can see flicker. Works best in a dark room.
No big deal, but it's there.
Click to expand...
Click to collapse
This sounds like a refresh rate issue, which would be hardware, yes?

ericshmerick said:
If you hold your device in front of you with the screen on and look beyond it (i.e. over it's shoulder per say) you can see flicker. Works best in a dark room.
No big deal, but it's there.
Click to expand...
Click to collapse
Sounds like one of those magic eye pictures. If you squint at your screen while holding it at a 45-degree angle in a dark room with brightness turned all the way down and jog in place...
I'm not sure how to replicate it based on what you said, but I still don't see any screen flicker.

snavid972 said:
Is anyone else having the screen flicker on their nexus 4?
Click to expand...
Click to collapse
Mine started flickering like mad today for the first time. I rebooted, but that didn't fix it. I started up a benchmark app and the flickering stopped after the graphics benchmarks ran. I had to RMA my first Nexus 7 with screen issues too, so I'm hoping this is just a software issue

I don't have this issue at all.

[Q] Has anyone found a PGM replacement?

Hey guys
Long time Galaxy Nexus / Galaxy Note 2 user here.
One of my fave apps was the PGM because it allowed control of the phone without hitting the unlock button to unlock it.
I know the dev (who lives in Poland) hasnt gotten an N4 yet, so he hasnt been able to write the kernel tweak yet.
Anyody found any options?

I have been using the app Sleep Tweak. What it does is if you get a text it wakes the phone but doesn't turn on the screen. If you pick the phone up within X seconds after receiving a text the screen turns on. Same with if the phone times out by itself if you pick it up within X seconds it will turn the screen back on. Not the same I know but it lets me decide whether I want the screen to turn on for a text or something.
Sent from my Nexus 4 using Tapatalk 2

No answer for you, but a question..
Wouldn't something like PGM (Nexus) drain the battery? As it would require the screen to be "on" to detect any type of touch from the user?

UberSlackr said:
No answer for you, but a question..
Wouldn't something like PGM (Nexus) drain the battery? As it would require the screen to be "on" to detect any type of touch from the user?
Click to expand...
Click to collapse
The battery drain was very minimal on my gnex when i was using it, maybe 5% tops.

UberSlackr said:
No answer for you, but a question..
Wouldn't something like PGM (Nexus) drain the battery? As it would require the screen to be "on" to detect any type of touch from the user?
Click to expand...
Click to collapse
No,
Snce it's written into the kernel itself the device still deep sleeps and so the effects on battery are minimal.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

joshnichols189 said:
I have been using the app Sleep Tweak. What it does is if you get a text it wakes the phone but doesn't turn on the screen. If you pick the phone up within X seconds after receiving a text the screen turns on. Same with if the phone times out by itself if you pick it up within X seconds it will turn the screen back on. Not the same I know but it lets me decide whether I want the screen to turn on for a text or something.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I mean, that's not bad at all, but man I wish I had 2 N4's I could ship this guy, so we could finally get that.
No lie, it's the ONE app I NEED on a device
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

peachpuff said:
The battery drain was very minimal on my gnex when i was using it, maybe 5% tops.
Click to expand...
Click to collapse
5%? No. It's way less than that. When I use it it feels like it has absolutely no impact on battery life because it's a kernel module.
Sent from my Nexus 4 using xda premium

Nexus 4 Bugs

I want to ask if anybody has similar bugs to a non-rooted, locked, stock nexus 4 on 4.2.2 and would like to know on how to fix them. I have factory reset the phone and always seem to get the same results. I don't mind these little bugs, but they are making me want to root my phone.
1. While listening to Google music, I would try to unlock my phone and Google music screen widget would flicker and shake and make unlocking difficult I provided the picture on the attachment.
2. Another bug while still listening to Google music; it would dim more than normally it would in a shorter amount of time on lock screen.
3. Almost every time I open YouTube, the YouTube window animation flickers.
4. Battery drops 2-5% when the phone is rebooted.
5. Phone battery % drops after being fully charged and unplugged.
Sent from my Nexus 4 using xda app-developers app

4 and 5 are caused by a slightly wrong calibrated battery if you reset the calibration files (here is a tut somewhere) or just do only full cycles for a few weeks this shouldn't be a problem because it is just a displayed drop I think I'm rooted and don't listen much to Google music so no comment to 1 and 2.
3 isn't known to me.
Just a quick answer haha
Gesendet von meinem Nexus 4 mit Tapatalk 4 Beta

Thank you, I'm going to look on how to properly calibrate the battery. These little bugs can get frustrating at times.
Sent from my Nexus 4 using xda app-developers app

Don't know about 1 and 2.
3) The youtube app is a buggy piece of sh*t, so I wouldn't sweat it too much.
4) The battery percentage drop on rebooting has occured on every ROM I tried so far, so I don't really care. Well, maybe not 5%, but 1-2% is normal for me.
5) Happens to me occasionally, I don't really mind if it drops to 99% straight away, it's only correct. 100% would mean that your battery is perfectly fully charged. When you unplug it, some tiny (seriously) amount of power is being used due to the fact that your screen turns on, right?
Try cleaning the app data and cache for Play Music and Youtube (settings > apps) and see if it gives any result.

Thank you for helping. I forgot to mention another bug that is probably the worst. When receiving a phone call, I pick up the phone and the screen turns off. I try to turn the screen on and it doesn't respond. This bug has made me miss calls various times.
Sent from my Nexus 4 using xda app-developers app

reiko09 said:
Thank you for helping. I forgot to mention another bug that is probably the worst. When receiving a phone call, I pick up the phone and the screen turns off. I try to turn the screen on and it doesn't respond. This bug has made me miss calls various times.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Mh well your on/off presses sometimes interfere with the proximity sensor on your phone this "issue" sometimes causes wild screen on/off during call because I click the button but the screen was already turning on because I no more held it next to my ear so it turns off again so I click again to turn on but hold the phone to my ear shortly to check whether the other person is still in call so proximity sensor reacts.... Repeat n-times. But that doesn't sound like your problem. Could you describe it more specific?
Gesendet von meinem Nexus 4 mit Tapatalk 4 Beta

When receiving a phone call, I pick it up the phone and the screen turns off and doesn't respond to the power button. I have to tilt the phone until it turns on and until I get a chance to answer the call. Proximity sensor/s does sound to be the cause of this. Any way to fix this?
Sent from my Nexus 4 using xda app-developers app

Phew I don't think so... But changing habits... I'm working on a solution for my random clicking but I think the only way to solve that is to give the phone more time to react before pressing power button because it'll turn screen on/off as you would like it to but it needs a short period of time for that
Gesendet von meinem Nexus 4 mit Tapatalk 4 Beta

Hopefully Android 4.3 fixes some of these bugs. The Nexus 4 Lg adapter was garbage, I dropped it once and after that it stopped working.
Sent from my Nexus 4 using xda app-developers app

1 & 2 Yes!
I told Google about this back in February.
Sent from my Nexus 4 using xda premium

What did Google say? Its frustrating listening to music and having this happen.
Sent from my Nexus 4 using xda app-developers app

reiko09 said:
What did Google say? Its frustrating listening to music and having this happen.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
They said to clear cache/data & uninstall updates. Then update.
It did not work. I told them & they said they will Look into fixing this issue in a update later on.
Sent from my Nexus 4 using xda premium

Yeah, uninstalling and updating apps doesn't work. I've been doing that since the longest and no fix. Factory resetting or even flashing stock doesn't seem to fix these bugs either. Hopefully later on they find a solution. I didn't mind these bugs at first, but after a while, it got frustrating.

reiko09 said:
I want to ask if anybody has similar bugs to a non-rooted, locked, stock nexus 4 on 4.2.2 and would like to know on how to fix them. I have factory reset the phone and always seem to get the same results. I don't mind these little bugs, but they are making me want to root my phone.
Click to expand...
Click to collapse
1. While listening to Google music, I would try to unlock my phone and Google music screen widget would flicker and shake and make unlocking difficult I provided the picture on the attachment. Don't use the lockescreen and/or the music app. Google play music works fine on my end.
2. Another bug while still listening to Google music; it would dim more than normally it would in a shorter amount of time on lock screen.
Don't notice this because I always sleep the phone manually after choosing music.
3. Almost every time I open YouTube, the YouTube window animation flickers.
Never have experienced this.
4. Battery drops 2-5% when the phone is rebooted.
This can happen, yes. Stop rebooting so much.
5. Phone battery % drops after being fully charged and unplugged.
This happens about 95% of the time. Nothing to worry about.
Sent from my Nexus 4 using xda app-developers app

Thanks for your reply. For the Google Music apk, I don't use any lock screen widget. When I listen to the music and try to unlock it, that's when it gets buggy. Either the widget shakes or the screen dims more than normally it would. I only reboot I once a day every morning in order to reduce lag and refresh the system.

I guess I don't know what you mean with the music app. What Rom are you on?
Sent from my Nexus 4

I'm on stock rom, unrooted and locked. I was on cyanognemod, unofficial miui, and decided to go back to stock. I have enjoyed stock until bugs started happening. When I listen to Google Play Music; there are times when I turn my phone on and try to unlock the screen, the Google Music widget shakes and makes it difficult to unlock.

Found another bug. Not annoying but its just there. When applying a stock wallpaper and you immediately scroll left or right, you get this result.
Sent from my Nexus 4 using xda app-developers app

May be it's just the universe trolling you saying "one does not simply not root a nexus".
Yes most of the bugs you mentioned are present and they are fixed in most of the custom ROMs.