Database Users

Nexus 7 Backlight Flicker?

Does anyone else have this problem with their nexus 7? I just got my nexus 7 today but I noticed that the backlight seems to flicker randomly
It doesn't look like much in the video but it is very noticeable and gets annoying when you're reading an ebook like i was.. Here's a video showing the problem.(It's near the end)
VIDEO LINK: h**p://db.tt/28eD0NLk (It happens around 9 second in) (change ** into tt)
For whatever reason this forum would not post a video link to show the problem.. for those who wants to know what it looks like please PM me..
But basically the screen flickers randomly ..
Is this a software problem? Should I go back and get it exchanged?

I don't see a video
Sent from my Nexus 7 using xda app-developers app

phantasybm said:
I don't see a video
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yeah because the forum does not allow new users to post link..which i think is really stupid

Already have a topic on this: http://forum.xda-developers.com/showthread.php?t=1740385

HiddenSanctum said:
Already have a topic on this: http://forum.xda-developers.com/showthread.php?t=1740385
Click to expand...
Click to collapse
I think its different.
Mine flickers no matter which app I use..even on home screen it flickers..
Also this forum has the most ridiculousspam prevention method..5 mins between posts + no link ? WTF

Its because you are new, we get a lot of trolls
Does increasing your brightness help?
Sent from my Nexus 7 using Tapatalk 2

I've had a similar problem as well. It seemed to happen to me on auto-brightness when it was changing the brightness level. I can't say for sure though, just my observation.
Sent from my Nexus 7 using xda premium

HiddenSanctum said:
Its because you are new, we get a lot of trolls
Does increasing your brightness help?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I havn't tried it yet..do we know if it's a hardware problem or software?
I just got it today so I can still return it if it turns out to be hardware

We really dunno at this point, but we are speculating software since both HTC One X and TF300 had similar problems and were fixed with firmware updates. Also someone switched it three times and all of them had this issue. Also try to run the screen in a pitch black room and tell me if the screen flicker is there. I may have a theory but need some other people to see if their units are behaving the same way as mine.

You can still post the link when you alter it a bit, insert a few *** into it, for example.

I turned mine on as soon as I got hold of it, no flicker, managed to go through and set up things, powered off and left to charged.
Coming back to it the screen would appear to turn on and off randomly, I thought it could be an app controlling a proximity sensor (I have one on my phone and I was EXTREMELY tired!), when I took it into the light there was no change.
I found that shaking it would help it flicker on and off at all intervals but didn't fix it. In the end I just started pushing random areas on the back, just before the issue went away I pressed around the bottom left quarter of mine and haven't had an issue since!
Glad I wasn't the only one with the problem though and would love to actually find out what it was.
Hope this helps!
Sent from my HTC One X using xda premium

kanzlerin said:
You can still post the link when you alter it a bit, insert a few *** into it, for example.
Click to expand...
Click to collapse
Try this video,
h**p://dl.dropbox.com/u/13153603/Videos/VID_20120715_100253.mp4
it is using google map and you can see the constant flickering.. It doesn't look very severe in the video but it is actually very noticeable and annoying

I have the same issue with mine. It only seems noticeable when I have the brightness set to the lowest setting and on a page that is predominately white. I don't think it's the proximity sensor though, because it happens both when I set it manually to the lowest setting and when I'm in the dark and the tablet sets the brightness all the way down itself. Hope the next update fixed this, because it's really annoying!
Sent from my Nexus 7 using XDA Premium HD app

Here's the link: http://dl.dropbox.com/u/13153603/Videos/VID_20120714_215601.mp4
Hope it works.

Seems like only a small portion of nexus 7 owners are reporting this issue .. I think I'm going to return mine ...

HiddenSanctum said:
We really dunno at this point, but we are speculating software since both HTC One X and TF300 had similar problems and were fixed with firmware updates. Also someone switched it three times and all of them had this issue. Also try to run the screen in a pitch black room and tell me if the screen flicker is there. I may have a theory but need some other people to see if their units are behaving the same way as mine.
Click to expand...
Click to collapse
I first noticed this flicker in a darkened room, so yes, it is definitely something going on. I'll try disabling auto-brightness to see if that matters.
If anyone else has info about this, please share!
PS this thread seems to describe the same issues: http://forum.xda-developers.com/showthread.php?t=1740385

Screen Flicker
HiddenSanctum said:
We really dunno at this point, but we are speculating software since both HTC One X and TF300 had similar problems and were fixed with firmware updates. Also someone switched it three times and all of them had this issue. Also try to run the screen in a pitch black room and tell me if the screen flicker is there. I may have a theory but need some other people to see if their units are behaving the same way as mine.
Click to expand...
Click to collapse
I can attest that the flicker is ever present in a pitch black room as well.

Like this?
There are a few videos on youtube, but i cant post links but if you do a search you can find it

I noticed a flickering in chrome yesterday. But only in chrome and only while the page is rendering after it fully renders no more flickering.

Everyone turn off wifi and I guarantee it will go away. It happens when using wifi which makes it hard to believe that a software update can fix it.

Washed out still after applying fix

Hey everyone, so I set smart dimmer off but it doesn't help. I turn on my tablet and it's always washed out and quite a bit of ghosting. Anyone know any way of fixing it?
Sent from my Nexus 7 using xda app-developers app

Nebuna said:
Hey everyone, so I set smart dimmer off but it doesn't help. I turn on my tablet and it's always washed out and quite a bit of ghosting. Anyone know any way of fixing it?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Same here. I sent it back. Ordered a new one a couple of weeks later from another place, same issue.
There are many articles and threads about this problem, but unfortunately Google and ASUS seem to ignore it. And even here on xda, people get defensive about their Nexus 7 and downplays the problem, attacks DisplayMate for scientifically illustrating the problem etc.
It annoys the hell out of me because I _want_ to love the Nexus 7, I _want_ to _want_ to keep it. It has great hardware, great software and even the IPS screen is great, but unfortunately the end result is a display that is seriously miscalibrated. The simplest calibration tests of black level, shadow detail, white crush and saturation and intensity (especially of the green primary) shows the major issues. Worst, it is obvious in daily use all the time.
I probably will end up sending this second Nexus 7 back as well and buy something with a half-decent visual experience.

use this:
https://play.google.com/store/apps/...S53aWRnZXRzLmJpZy50ZWdyYS5wcmlzbS50b2dnbGUiXQ..
or try a kernel which has tegra prism disabled

IINexusII said:
use this:
https://play.google.com/store/apps/...S53aWRnZXRzLmJpZy50ZWdyYS5wcmlzbS50b2dnbGUiXQ..
or try a kernel which has tegra prism disabled
Click to expand...
Click to collapse
I already have PRISM disabled. It helps a tiny bit but does not begin to solve the problem at all. Gamma, white crush, green saturation and intensity, contrast etc. still looks like something from 5+ years ago.
And there are a billion threads about this on the internet. I wish Google would take it serious, but...
http://productforums.google.com/forum/#!msg/mobile/UFOcWERdYf0/Cy-_1Kkyl7kJ

I don't know if I go lucky but when I went to safe mode and turn my device of overnight then in the morning I no longer experience this problem. Note I experienced your problem for 3 months and just yesterday the issue was resolved simply by doing what I stated. Good luck let me know what happens
Sent from my Nexus 7 using xda app-developers app

XPERIA Z Screen Differences.

Hey all,
Just wanted to get a quick opinion from everyone here about the Sony Xperia Z screen.
There has obviously been a large discussion on the internet about the different quality Xperia screens and today I managed to identify first hand what an arguably good Z screen locks like in comparison to a bad one ,at least for my tastes. One device has a horrid reflection effect in a dark environment which left me wanting while another unit has better contrast all round with higher saturation.
What is everyone's experience and likes dislikes with the Xperia Z screen? I remember the apple screens when you use to go to the apple store and notice your screen has a yellowish tint in comparison to the same model on display which ticked me right of.
I want to close this display discussion once and for all so we know what the deal is. Are there really bad screens and good screens and what are the differences? I think there are and I stated my opinion above.
Sent from my C6603 using xda app-developers app

I don't know if it's just me, or the phone isn't set up properly but the screen is perfect - however when I am watching videos on youtube or anything, the colours seem so dark? It's not the viewing angle, it's just the colours seem so deep & black. Anyone experience this too?

SalamiQueen said:
I don't know if it's just me, or the phone isn't set up properly but the screen is perfect - however when I am watching videos on youtube or anything, the colours seem so dark? It's not the viewing angle, it's just the colours seem so deep & black. Anyone experience this too?
Click to expand...
Click to collapse
Maybe bravia engine is switched on

stefanve said:
Maybe bravia engine is switched on
Click to expand...
Click to collapse
Oh wow, you're right! Thanks for that! Can't believe something that is meant to improve quality made things worse lol

Hi there.
I think I know what you mean I noticed this as well. Check this video on YouTube with and without bravura engine and take auto brightness of and put it to 50%.
youtube.com/watch?v=KsYTJDM6ups&feature=youtube_gdata_player
Dots it still seem dark?
Sent from my C6603 using xda app-developers app

stiffler191 said:
Hi there.
I think I know what you mean I noticed this as well. Check this video on YouTube with and without bravura engine and take auto brightness of and put it to 50%.
youtube.com/watch?v=KsYTJDM6ups&feature=youtube_gdata_player
Dots it still seem dark?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Thanks for this.

stiffler191 said:
Hi there.
I think I know what you mean I noticed this as well. Check this video on YouTube with and without bravura engine and take auto brightness of and put it to 50%.
youtube.com/watch?v=KsYTJDM6ups&feature=youtube_gdata_player
Dots it still seem dark?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Thank you for the tip. So is it best to set the display to 50% with the auto brightness & the bravia engine turned OFF? It does seem better with the engine turned off overall it seems

Some says the Japanese version is JDi
Screen and it better than ours
Sent from my C6603 using Tapatalk 2

SalamiQueen said:
Thank you for the tip. So is it best to set the display to 50% with the auto brightness & the bravia engine turned OFF? It does seem better with the engine turned off overall it seems
Click to expand...
Click to collapse
I just mentioned that you should switch brightness to 50% so you can level the comparison field without your phone actually changing the brightness and changing results. Bravia engine should probably stay off if you don't like it, personal preference really. as for the auto brightness I recommend keeping it on, it is the first ever device that I have left this feature on since it does such a good job with it! will probably save some battery as well most times.
So does this mean the video looked alright?

sadlove said:
Some says the Japanese version is JDi
Screen and it better than ours
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
So is this phone (with better screen) only sold in Japan? That would be quite shocking.
And who are you refering to when you say that some say? link Maybe...

stiffler191 said:
I just mentioned that you should switch brightness to 50% so you can level the comparison field without your phone actually changing the brightness and changing results. Bravia engine should probably stay off if you don't like it, personal preference really. as for the auto brightness I recommend keeping it on, it is the first ever device that I have left this feature on since it does such a good job with it! will probably save some battery as well most times.
So does this mean the video looked alright?
Click to expand...
Click to collapse
Well I do like the auto feature too so left that on with 50% brightness
The bravia engine, tbh I can't see any difference with photos, only with videos things seem so dark that you can't watch anything properly. So I guess I'll only turn it off when I am watching videos. They should have an option to let you have it on for photos & off for videos
But yes switching bravia off worked the videos perfectly thank you

stiffler191 said:
So is this phone (with better screen) only sold in Japan? That would be quite shocking.
And who are you refering to when you say that some say? link Maybe...
Click to expand...
Click to collapse
There are some people that willing fail to understand that the Japanese version has a different skin since it's customized by do como. It uses black menus and black buttons. So based on that they say that the Japanese model has a better screen because it displays black

stefanve said:
There are some people that willing fail to understand that the Japanese version has a different skin since it's customized by do como. It uses black menus and black buttons. So based on that they say that the Japanese model has a better screen because it displays black
Click to expand...
Click to collapse
I actually wish they would have made the menu black it would have looked much sleeker.

stefanve said:
There are some people that willing fail to understand that the Japanese version has a different skin since it's customized by do como. It uses black menus and black buttons. So based on that they say that the Japanese model has a better screen because it displays black
Click to expand...
Click to collapse
Check below video from 1:15 where it sets same wall paper on both hand set.

stefanve said:
There are some people that willing fail to understand that the Japanese version has a different skin since it's customized by do como. It uses black menus and black buttons. So based on that they say that the Japanese model has a better screen because it displays black
Click to expand...
Click to collapse
And better viewing angles because of docomo skin? :laugh:

can the display be fixed with a software update?

jigarpatel22 said:
Check below video from 1:15 where it sets same wall paper on both hand set.
Click to expand...
Click to collapse
Later in this video... How can docomo version has better viewing angles...
Sent from my HTC_Flyer_P512_NA using xda app-developers app

nikhiltanwar said:
Later in this video... How can docomo version has better viewing angles...
Sent from my HTC_Flyer_P512_NA using xda app-developers app
Click to expand...
Click to collapse
It doesn't

stefanve said:
It doesn't
Click to expand...
Click to collapse
Let me hear your explanation. Anti-shatter shield makes it worse or what?

mikbe said:
Let me hear your explanation. Anti-shatter shield makes it worse or what?
Click to expand...
Click to collapse
It's because of the viewing angles, if you look at the beginning the European version actually looks more vibrant. The thing is that a slight tilt already makes a small difference the phones are recorded from different angles relative to the camera. Since you don't see any difference when viewing the screen head on and the difference in view angles are really minor I think it is just the positioning of the phones relative to the camera. Also because in the first part the European looks slightly better. If you look at the screen bottom up it tens to be slightly more blue with gives it slightly more vibrancy if you look top down it gives a bit more yellow causing white to be slightly yellow and thus has a tiny effect on contrast

calibrate the XZ screen for vibrant color

We all know that some of the color looks washed when we watch in a diff angle , also the head on looks sometimes may not look great since BE2 is not applied all time .
not sure if this works as I dont have a rooted phone ( dont plan to root till 4.2 ) can anyone test this on their rooted phone and post results and reviews please?
https://play.google.com/store/apps/details?id=com.nexus4displaycontrol&feature=search_result
this appears to work very well with the Nexus4 hope should work on the XZ too
awaiting positive results

does this work?? any conformation..

ethan3686 said:
does this work?? any conformation..
Click to expand...
Click to collapse
That is what I want someone to try as my XZ is not rooted and this app requires root..

anirudhks said:
That is what I want someone to try as my XZ is not rooted and this app requires root..
Click to expand...
Click to collapse
I can't even download it... My device is not compatible..
Sent from my C6603 using xda premium

This app is incompatible with your SingTel Sony C6603. Sadly.

anirudhks said:
We all know that some of the color looks washed when we watch in a diff angle , also the head on looks sometimes may not look great since BE2 is not applied all time .
not sure if this works as I dont have a rooted phone ( dont plan to root till 4.2 ) can anyone test this on their rooted phone and post results and reviews please?
https://play.google.com/store/apps/details?id=com.nexus4displaycontrol&feature=search_result
this appears to work very well with the Nexus4 hope should work on the XZ too
awaiting positive results
Click to expand...
Click to collapse
Try screen adjuster. Does not require root.

Tried it. It doesn't work. Gives an error everyone you try run it
Sent from my C6603 using xda premium

It won't work more than likely because it is based on the Nexus 4 hardware.

xl VipeR lx said:
Tried it. It doesn't work. Gives an error everyone you try run it
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
No error on mine(stock rom). However not really good at adjusting the screen color.
Adjusted as per image. Picture shown the with and without.

argh2000 said:
No error on mine(stock rom). However not really good at adjusting the screen color.
Adjusted as per image. Picture shown the with and without.
Click to expand...
Click to collapse
If you just want to deal with the view angle problem, set the system brightness higher (80% or higher), and set the brightness of the screen adjuster to 50%~70%, nothing else. Then the view angle will be amazing, but you will also find very little blue tint when displaying white color

sillypilot said:
If you just want to deal with the view angle problem, set the system brightness higher (80% or higher), and set the brightness of the screen adjuster to 50%~70%, nothing else. Then the view angle will be amazing, but you will also find very little blue tint when displaying white color
Click to expand...
Click to collapse
done, thank you. The angle view does seems to be better.

sillypilot said:
If you just want to deal with the view angle problem, set the system brightness higher (80% or higher), and set the brightness of the screen adjuster to 50%~70%, nothing else. Then the view angle will be amazing, but you will also find very little blue tint when displaying white color
Click to expand...
Click to collapse
Wow, call it placebo or whatnot, but it seems as though it helps to some extent! (maybe it's just me) O_O!

sillypilot said:
If you just want to deal with the view angle problem, set the system brightness higher (80% or higher), and set the brightness of the screen adjuster to 50%~70%, nothing else. Then the view angle will be amazing, but you will also find very little blue tint when displaying white color
Click to expand...
Click to collapse
yep that helps to a certain extent thanks for finding,,

Screen throttling

So as you guys may know the screen gets throttled no matter what. But if you go on aokp the throttling isn't there so does anyone know what makes it happen and if we can stop it on touchwiz.

jetlitheone said:
So as you guys may know the screen gets throttled no matter what. But if you go on aokp the throttling isn't there so does anyone know what makes it happen and if we can stop it on touchwiz.
Click to expand...
Click to collapse
Im stupid..what does throttle do?
Maybe I have it and don't even know it.

Everyone does its easily visible when the brightness is low and you're on chrome or anything for that matter even YouTube. If you bring the keyboard up you can see a color shift I'm the browser and if you are playing a YouTube video through the app you can see a color shift when you press on the screen while a video is being played. It's quite annoying but clearly a touchwiz thing. You can't even turn it off.
Sent from my SGH-M919 using Tapatalk 4 Beta

jetlitheone said:
Everyone does its easily visible when the brightness is low and you're on chrome or anything for that matter even YouTube. If you bring the keyboard up you can see a color shift I'm the browser and if you are playing a YouTube video through the app you can see a color shift when you press on the screen while a video is being played. It's quite annoying but clearly a touchwiz thing. You can't even turn it off.
Sent from my SGH-M919 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Just gave me a headache.
Sent from my AT&T Galaxy S4 Running AOKP 4.2.2

The color shifts a lot depending on what you're doing.
Sent from my SGH-M919 using Tapatalk 4 Beta

jetlitheone said:
Everyone does its easily visible when the brightness is low and you're on chrome or anything for that matter even YouTube. If you bring the keyboard up you can see a color shift I'm the browser and if you are playing a YouTube video through the app you can see a color shift when you press on the screen while a video is being played. It's quite annoying but clearly a touchwiz thing. You can't even turn it off.
Sent from my SGH-M919 using Tapatalk 4 Beta
Click to expand...
Click to collapse
thanks for educating me here....
I just don't see this, could it be I am old and wear glasses

Settings > My device > Display > Auto adjust screen tone. Does unchecking that fix it for you?

No it doesn't. It's integrated in touch wiz

I tried to duplicate and don't see it either--I am old--
I do have tone unchecked though

its dynamicaly adjusting to help you get the best view, i dint mind it at all haha

Actually, I just started noticing this with certain downloaded keyboards as well. I don't remember it happening with the stock keyboard, but I REALLY notice it while using Kii Keyboard in certain apps, but only darkly-themed apps. It's less noticeable with bright backgrounds.