Hi guys, I was wondering if you could help me where Nexus 7 customer service failed.
Basically, my stock wallpapers are really grainy, check the screenshots to see what I mean. They weren't when I first switched the device on, only after a few days. I've attached the standard jellybean wallpaper we all recognise because it's the one where the effect is most pronounced, try looking at it on your own n7 to see the difference, colours should be smooth rather than grainy.
I've done a factory reset, as advised by n7 customer service, and the problem remained.
Just to clarify something important; the screen itself is fine, and setting other wallpapers is fine too. The graininess occurs only on the stock wallpapers both when set as wallpaper, and when viewed in the wallpaper picker. This made me think that perhaps the wallpaper files themselves were somehow corrupted?
I'd really appreciate your help, I'm not rooted, and would rather stay unrooted if possible (blasphemy, I know).
I guess it has to do with the brightness of the screen.
Switch the brichtness higher and the grainy effect is gone
dendirk said:
I guess it has to do with the brightness of the screen.
Switch the brichtness higher and the grainy effect is gone
Click to expand...
Click to collapse
@dendirk Tried it, no luck there.
Also, the screenshots do not take screen brightness into account.
Why not reflash the stock factory images. It requires unlocking the boot loader.
Sent from my Nexus 7 using xda app-developers app
This has been confirmed look at the washed out screen thread we all have the problem its a tegra problem it happens when you play a video there is a fix dont know if it works but i think this will get fixed soon ota update.
all nexus 7 wallpaper is like that. try applying a custom wallpaper and the grain is then fixed.
On second thought, yes. I think they are meant to look that way. Even on my Galaxy Nexus they look like that.
Sent from my Nexus 7 using xda app-developers app
Some of you may have noticed it's difficult to watch dark scenes in movies on the gpad. I think the problem is the gamma calibration, you can see it clearly on the pictures I took.
https://imageshack.com/i/nf96iaj
On the top you can see my nexus 7 2013, you can differentiate all the shades of grey from 1% white to 100%.
On the gpad, everything is solid black from 1% to 12% of white.
You can find the original image here : http://imageshack.us/f/594/6291.png/
How low can you go, on your gpad, before the grey melts with the black ?
Do you know an app to apply gamma correction ?
Here you can see the same picture on the N7 and the gpad. You can't even distinguish the guy's ear on the g pad.
https://imageshack.com/i/f563trj
bobo69 said:
Some of you may have noticed it's difficult to watch dark scenes in movies on the gpad. I think the problem is the gamma calibration, you can see it clearly on the pictures I took.
https://imageshack.com/i/nf96iaj
On the top you can see my nexus 7 2013, you can differentiate all the shades of grey from 1% white to 100%.
On the gpad, everything is solid black from 1% to 12% of white.
You can find the original image here : http://imageshack.us/f/594/6291.png/
How low can you go, on your gpad, before the grey melts with the black ?
Do you know an app to apply gamma correction ?
Here you can see the same picture on the N7 and the gpad. You can't even distinguish the guy's ear on the g pad.
https://imageshack.com/i/f563trj
Click to expand...
Click to collapse
I see the difference, and I knew it was there already also.. I'm sorry, but apparently gamma is not something that is doable. - I was looking to link you the app from market called "Screen Adjuster", however you want to look at this description, especially the last sentence. ;/
- dimming the screen 15-100% (below minimum system brightness)
- screen color and a contrast adjustment
- system brightness 0-100% adjustment
- functional widget (on/off, system brightness, settings)
- autorun option
Some phones have a color tint screen. This app have a possibility to try to improve colors on this kind of the screen by setting an additional factor RGB.*
The range of the dimmer is from 15% to 100% (it allows to dim the screen below a min system brightness value). Make a relief for your eyes during a nightly reading.
Furthermore, you can change fast the system brightness too.
The additional contrast factor can try to make the reading or a picture viewing more comfortable on some screens.*
The widget provides fast on/off service with a shortcuts to the Adjuster settings and the system brightness settings.
The application has the autorun option which works with the dimmer set above 22% (for the safety).
Note
A gamma adjustment is not possible to do.
You can of course try and download the app anyways and see if contrast or brightness will do anything for ya.
- In case you do download the app, remember that setting contrast low will result in problems with installing apps, as in you cannot hit Install, only cancel. To avoid this, open up Screen Adjuster and turn it off, install the app and turn it back on afterwards. It's something about lowering the settings to lower than what is "intended", I don't quite understand it and I find it rather odd. But it let's you install apps.. So I guess hooray.
That's all I got.
CuraeL said:
I see the difference, and I knew it was there already also.. I'm sorry, but apparently gamma is not something that is doable. - I was looking to link you the app from market called "Screen Adjuster", however you want to look at this description, especially the last sentence. ;/
That's all I got.
Click to expand...
Click to collapse
Thank you for your response, but I'm already using screen adjuster. I set the contrast at -25 and it helps a lot to see dark details.
Unfortunately, it has two side effects :
- it brightens the dark shades of grey, but also the black levels.
- I noticed that the contrast setting also affects the white making it look like light grey.
So the contrast setting in screen adjuster doesn't affects only the dark tones like it would on a monitor or a tv, it affects the contrast ratio.
I've found apps to make gamma adustment but it only works on some devices with custom kernel.
https://play.google.com/store/apps/details?id=com.teamkang.fauxclock&hl=fr
- Gamma curve (Galaxy Nexus, Nexus 4, HTC One, Nexus 7 2013)
bobo69 said:
Thank you for your response, but I'm already using screen adjuster. I set the contrast at -25 and it helps a lot to see dark details.
Unfortunately, it has two side effects :
- it brightens the dark shades of grey, but also the black levels.
- I noticed that the contrast setting also affects the white making it look like light grey.
So the contrast setting in screen adjuster doesn't affects only the dark tones like it would on a monitor or a tv, it affects the contrast ratio.
I've found apps to make gamma adustment but it only works on some devices with custom kernel.
https://play.google.com/store/apps/details?id=com.teamkang.fauxclock&hl=fr
- Gamma curve (Galaxy Nexus, Nexus 4, HTC One, Nexus 7 2013)
Click to expand...
Click to collapse
Yea, I was about to say that gamma can be done but only on custom kernels. Lot of Nexus 5 stuff on the market. Apparently it's Google who locked the gamma settings completely down but only in 4.4.2. I guess it may work on stock LG Kernel since it's only 4.2.2? I'm afraid we'll have to wait for some kernel support for other roms. That would be awesome. I really hope for some Franco-kernel-glory on this device.
That's what I thought, we need to wait for custom kernels...I hope it will come soon, because it's so frustrating to have such a good screen with bad calibration !
People tends to complain too much about the warm white balance but the gamma calibration is far more concerning.
bobo69 said:
That's what I thought, we need to wait for custom kernels...I hope it will come soon, because it's so frustrating to have such a good screen with bad calibration !
People tends to complain too much about the warm white balance but the gamma calibration is far more concerning.
Click to expand...
Click to collapse
I hope @dalingrin can cook something up to address both. He said he was going to work on something.
joshuadjohnson22 said:
I hope @dalingrin can cook something up to address both. He said he was going to work on something.
Click to expand...
Click to collapse
Yes it would be great if he did , though he's done so much for us already.
Sent from my LG-V500 using XDA Premium 4 mobile app
I see someone had developed a nude kernel for our devices. I welder off they can add support for gamma adjustment
Sent from my LG-V500 using Tapatalk
I am pleased to say my new kernel BOB Kernel v2 has had the gamma corrected
My first post ever
YoungBobbie said:
I am pleased to say my new kernel BOB Kernel v2 has had the gamma corrected
Click to expand...
Click to collapse
Hi there Young Bobbie, I am new to posting on XDA so I couldn't post this in your kernel developer page. This is my first post on any forum page ever. First off, thank you very much for your hard work to make this kernel happen to correct gamma on the v500. I have been sitting on the fence whether to get the gpad, and if i would get the v500 or the v510. Was leaning toward the v510 because of Sleekmason's wonderful kernel work, but it's exciting that we have now have the same options available for the v500. I noticed this was working fully with the Malladus ROM. My question to you was whether or not this worked with stock LG ROM as well? Thank you again YoungBobbie and Sleekmason for your time and creations.
Sorry, just answered my own question. Guess it helps to read the very first line of the page (making fun of myself now ;-P) Thank you again YoungBobbie and sleekmason!!!
themorningwolf said:
Hi there Young Bobbie, I am new to posting on XDA so I couldn't post this in your kernel developer page. This is my first post on any forum page ever. First off, thank you very much for your hard work to make this kernel happen to correct gamma on the v500. I have been sitting on the fence whether to get the gpad, and if i would get the v500 or the v510. Was leaning toward the v510 because of Sleekmason's wonderful kernel work, but it's exciting that we have now have the same options available for the v500. I noticed this was working fully with the Malladus ROM. My question to you was whether or not this worked with stock LG ROM as well? Thank you again YoungBobbie and Sleekmason for your time and creations.
Sorry, just answered my own question. Guess it helps to read the very first line of the page (making fun of myself now ;-P) Thank you again YoungBobbie and sleekmason!!!
Click to expand...
Click to collapse
Gald to have helped would you be willing to try the kernel for the stock LG ROM?
Please take a look at the images below and compare
The tablet on the right is running my kernel and the left stock
You can see the differences on the first image as the deepness of the blacks
and on the second the highlights on the white
I just about to get this tablet, then i so this problem... ?
Sent from Note 3 Superphone!
Bob2702 said:
Gald to have helped would you be willing to try the kernel for the stock LG ROM?
Click to expand...
Click to collapse
Be happy to. Have to acquire the device first, which will be in a matter of a week or 2
hey guys and gals,
nexus 7 gen 1
16gb
android 4.4.4
rooted and unlocked boot loader
(never dropped, lives in a case) if it matters
used mostly for email and ebooks
My nexus has been good to me, but today I went to check my email in my locker during a break and my scren was all yellow/hyper saturated.
Ive tried 4 diff screen color filter apps. Nothing makes this better. Ive googled all variations of yellow, or sautrated, or washed out you can think of. Ive also searched this site.
Im not looking so much for a fix, but it would be nice, but an answer as to what phooked up. attached is a pic. I realize its not the best... If you look on som eof the cubes in the background its washed out and the shading is very.... almost 8bit
all the toggle buttons when youre in settings are kahki greenish...
Dear Sir or Madam!
I have Samsung galaxy S4 with Cyanogenmod 12 Nightly on. And a week ago after an update my screen faded. It hasn't been showing the typical vibrant amoled colours since. They are washed out and have a green tint which becomes much more noticeable when the screen gets dimmer. However on maximum brightness the colours suddenly shift back to normal vibrant and the difference is very obvious. I knew what I was putting myself into when I installed Nightlies, but I waited a week and none of the updates fixed the problem.
I really look forward to anyone helping me with this issue!
Your's sincerely,
ribicjaka
This isn't a proper fix ..get a app from play store like screen filter a bunch of them are available at play store ..so u can adjust RGB to ur desire...but as I mention its not a fix ...
sent from my GT I9505 5.0.1
thanks but it was fixed with an update
N986u1 unlocked version bought directly from samsung and I'm having a jelly like effect on black and darker colors while scrolling. However if I increase the brightness it goes away. Is anyone else noticing this?
in all apps or just some?
Wasn't that one of the display issues reported on Snapdragon variants on dark colors while at low brightness? Search for the "green tint display bug" and see if it's similar...
Sent from nowhere over the air...
I searched for the issue. There's no jelly effect mentioned and I'm not having the green tint effect at all. Just jelly at low brightness
I am having that issue too, but only when dark mode is one. So I just turned off dark mode for now. Seems to fix it, although there still is some effect when scrolling, its not as bad with the dark mode turned on.
Try disabling animations completely in Developer Options?
That's one of the first things I do anyway.
b.st0ne said:
N986u1 unlocked version bought directly from samsung and I'm having a jelly like effect on black and darker colors while scrolling. However if I increase the brightness it goes away. Is anyone else noticing this?
Click to expand...
Click to collapse
b.st0ne said:
I searched for the issue. There's no jelly effect mentioned and I'm not having the green tint effect at all. Just jelly at low brightness
Click to expand...
Click to collapse
Did you restore a backup from another phone to your Note Ultra? If so a FDR should fix the issue. A lot of issues are being reported as bugs and they simply restored data from an old phone to the Note 20, not a good practice at all. Your new Note 20 should be set up from scratch.
Are you sure it's not oled black smearing? Can you record the issue you are having?
I get it on my Google feed quite often