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.
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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
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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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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
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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.
Sent from my Nexus 7 using xda app-developers app

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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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
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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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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
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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.
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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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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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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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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.
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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.
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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.

Nexus 7 screen flickers on low brightness

Nexus 7 screen flickers on low brightness becoz i use the device at lowest possible brightness to save battery but screen flickers while using wifi specially on webpages having white background
Sent from my Nexus 7 using Tapatalk HD

this issue has already been discussed, a simple search and you would've found the solution. Just turn off wi-fi optimization and no more flicker

pleasant said:
Nexus 7 screen flickers on low brightness becoz i use the device at lowest possible brightness to save battery but screen flickers while using wifi specially on webpages having white background
Sent from my Nexus 7 using Tapatalk HD
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Click to collapse
It's the Tegra smart dimming causing the flickering. Apps like Franco Kernel Updater or Tegra Prism can toggle this on or off. Might be better to manually toggle it by editing a file if you want to avoid paying for an app, but I don't know it to hand.

dilldoe said:
this issue has already been discussed, a simple search and you would've found the solution. Just turn off wi-fi optimization and no more flicker
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Click to collapse
I tried this thing didnt help
Sent from my Nexus 7 using Tapatalk HD

Salty Wagyu said:
It's the Tegra smart dimming causing the flickering. Apps like Franco Kernel Updater or Tegra Prism can toggle this on or off. Might be better to manually toggle it by editing a file if you want to avoid paying for an app, but I don't know it to hand.
Click to expand...
Click to collapse
So is there any guide available to edit file i have rooted nexus 7
Sent from my Nexus 7 using Tapatalk HD

You could also download trickster mod and set it with that. Has paid and free versions.
Sent from my Nexus 7 using xda app-developers app

Are you using the Oxydo kernel? That makes my screen flicker too, try using m-kernel

JonesL said:
Are you using the Oxydo kernel? That makes my screen flicker too, try using m-kernel
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Click to collapse
I switched off smart dimming via trickster mod the effect has been reduced but still noticible i am using this kernel
See the attached image
Sent from my Nexus 7 using Tapatalk HD

Smart dimmer is NOT the problem, why do people perpetuate this nonsense... It is some interaction between the wifi and Backlight and is only really visible when wifi signal is low, background is white, and in the dark or near. Meh.

khaytsus said:
Smart dimmer is NOT the problem, why do people perpetuate this nonsense... It is some interaction between the wifi and Backlight and is only really visible when wifi signal is low, background is white, and in the dark or near. Meh.
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Click to collapse
What's the solution ?
Sent from my Nexus 7 using Tapatalk HD

pleasant said:
What's the solution ?
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Click to collapse
Turn up the backlight a little, I personally don't even notice it much anymore.

I fixed it by lifting the antenna ground with a piece of scotch tape. 7 months and still going strong.
Sent from my Nexus 7 using Tapatalk 2

I had this problem. It was very common around the time the nexus 7 was released.
From what I remember, it's a hardware issue with low WiFi signal interfering with the backlight, as someone above said.
Your options as I recall are to crack it open and attempt fixing yourself, voiding your warranty. Or just send it off. I sent mine off and received a new replacement. It was obviously a common complaint because they didn't even enquire further after I briefly described the problem.
Send it off, save yourself the headache of a hack job gone wrong.
Sent from my Nexus 4 using xda app-developers app

Corvidd said:
I had this problem. It was very common around the time the nexus 7 was released.
From what I remember, it's a hardware issue with low WiFi signal interfering with the backlight, as someone above said.
Your options as I recall are to crack it open and attempt fixing yourself, voiding your warranty. Or just send it off. I sent mine off and received a new replacement. It was obviously a common complaint because they didn't even enquire further after I briefly described the problem.
Send it off, save yourself the headache of a hack job gone wrong.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Dont have it in warranty as i imported it via friend from another country so sending back is issue
Is it easy to open and fix ?

[Q] Auto-Brightness Confusion

Can someone please explain how the auto-brightness works on this phone it seems to act a lot weirder than my galaxy nexus did. What does it mean when it talks about setting the baseline brightness and in what context? Do you use it? If so what brightness do you have it set to?

This phone has the worst auto-brightness of any device I've used.
I need to read the manual. I'm assuming the baseline is the minimum brightness, but it never seems to change when expected.

I chose to use a 3rd party app to manage it. Lux auto brightness works really well, and you can calibrate it any way you'd like.
Sent from my LG-D800 using Tapatalk 4

I have mine set to 40% on auto. I found the best way to decide the minimum brightness was to set it at a comfortable level in a dark environment.
To test this, set up your minimum brightness, then point the screen (ambient light sensor) at a light source, keep your eye on the screen and it'll gradually brighten. I've found mine to work pretty well and rarely have to manually override it, but the change is a lot slower than my note 2.
Sent from my LG-D800 using xda app-developers app

Get lux lite from the play store. It works great
Sent from my VS980 4G using Tapatalk 4

Comfortable in a dark room for me is about 5%, unfortunately even in the brightest of sun it seems like the phone never turns its brightness up at all when on auto like this. Anything less than 50% seems to break auto brightness for my device and that is just sad. Even when it works when set above 50%, it takes 5 seconds or so to adjust which is just terrible and the brightness seems to still act funny about how and when it decides to change. It really is the worst auto brightness ever.

Whoops!

whittikins said:
I chose to use a 3rd party app to manage it. Lux auto brightness works really well, and you can calibrate it any way you'd like.
Sent from my LG-D800 using Tapatalk 4
Click to expand...
Click to collapse
zandroid said:
Get lux lite from the play store. It works great
Sent from my VS980 4G using Tapatalk 4
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Click to collapse
Thanks for the recommendation guys that app seems to work sooooo much better than the stock auto brightness so far. The stock auto-brightness is garbage on this phone. Seems like the stock setting either doesn't get bright enough or doesn't get dark enough.

I don't agree, either I have a working phone or others are broke, but this is the best autobright performing phone I've every used, after the hd2, galaxy nexus, note 1 and note 2. Its perfect according to the ambient light situation and is really fast acting
Sent from my LG-D801 using XDA Premium 4 mobile app

Have any of ya'll tried this yet? I have seen this issue arise when I lower my brightness but this was posted earlier today and I havent tested it yet.
http://forum.xda-developers.com/showthread.php?t=2466268

Walter21026 said:
Have any of ya'll tried this yet? I have seen this issue arise when I lower my brightness but this was posted earlier today and I havent tested it yet.
http://forum.xda-developers.com/showthread.php?t=2466268
Click to expand...
Click to collapse
it doesn't work.
Sent from my VS980 4G using Tapatalk 4