[Q] Blotchy pixelated blacks/grays in low light conditions - AT&T Samsung Galaxy Note I717

Is anyone else experiencing poor black to gray transitions on this device? I noticed it on wallpapers and photos last night when I was playing around, so I tried it on a netflix video and it was terrible.
Stargate Continuum has an initial starfield scene just after the MGM lion where you get the full effect of the issue. I find it much harder to notice under lit conditions, but in a dark room it is absolutely terrible. I compared it to my infuse and the infuse looked perfect.

Known issue, apparently software not hardware.

The Note does not render black levels properly due to bad gamma calibration (or I think that's how supercurio describes it). At some level, instead of showing proper gradients of black levels, it just goes completely black. So this is why you see this drastic drop off and get the blocky black pixelation in dark scenes.
Ways to alleviate the symptoms for now is to use higher resolution videos (i.e., 1080p), to use movie mode, and to use a higher screen brightness ( 60 and up I think).
It's one of the downsides of the Note for now.

i noticed that when i was watching videos..

It's a well documented problem on the International version of the Note. I'd be curious to see how widespread this is on the AT&T Note.
http://forum.xda-developers.com/showthread.php?t=1430847
http://forum.xda-developers.com/showthread.php?t=1344714
http://forum.xda-developers.com/showthread.php?t=1336187

Ngambek2003 said:
It's a well documented problem on the International version of the Note. I'd be curious to see how widespread this is on the AT&T Note.
http://forum.xda-developers.com/showthread.php?t=1430847
http://forum.xda-developers.com/showthread.php?t=1344714
http://forum.xda-developers.com/showthread.php?t=1336187
Click to expand...
Click to collapse
its not just an issue with the note. seems to be common on most current gen galaxy phones

I read the threads posted above and some people are saying they replaced the phone and the new one is much better, while others are confident it software related...grrr. I am glad I got the black tie in case it turns out to be hardware down the road.

I have the same issue. So no need to return it for a new one?
Sent from the Almighty Note!

Related

Yellow Tint On Whites

For some odd reason, there is a yellow tint to all whites on my Galaxy S II. This is starting to get annoying for me. After using my iPad or Apple Cinema Display with great contrast, going to the yellow tint on my Galaxy S II is very annoying.
I don't know if this is a software or hardware issue. I do not think this was a problem two months ago or so.
Software:
AOKP 5.1
N.E.A.K latest
Does anybody know a solution to this problem?
Thanks
Colton127 said:
For some odd reason, there is a yellow tint to all whites on my Galaxy S II. This is starting to get annoying for me. After using my iPad or Apple Cinema Display with great contrast, going to the yellow tint on my Galaxy S II is very annoying.
I don't know if this is a software or hardware issue. I do not think this was a problem two months ago or so.
Software:
AOKP 5.1
N.E.A.K latest
Does anybody know a solution to this problem?
Thanks
Click to expand...
Click to collapse
Its the neak kernel, I had noticed the same thing. Try a different kernel and see if it persists. Or go to sg2 settings aka "device settings" and change the color mode and color scenario until the yellow goes away
Sent from my SGH-I777 using XDA
patsmike said:
Its the neak kernel, I had noticed the same thing. Try a different kernel and see if it persists. Or go to sg2 settings aka "device settings" and change the color mode and color scenario until the yellow goes away
Sent from my SGH-I777 using XDA
Click to expand...
Click to collapse
Thanks. I'm going to try UnOriginal for a change...Been a while since I was off ICS. I guess I will miss the voice to text and interface the most.
Try Shostock.....that Cherrypicker kernel is pretty damn sweet.
killing is my business, And business is good.
Stock no problems clear white black blacks
I'm on stock (never even rooted) and I had the same issue starting on day 1. I noticed it right away because my previous phone was the Infuse 4G, and they're both supposed to be Super AMOLED+ displays, so I expected the same screen saturation. Interestingly, my Infuse 4G is at the top of its Super AMOLED+ glory, but the SII has very dulled out whites, and things like skin tone look pretty awful. It almost looks like the saturation/contrast/brightness/darkness settings are messed up.
I also compared my SII's screen with another friend's SII, and interestingly, hers was just like my Infuse 4G. Very sharp whites, amazing colors. She is however on the ROM previous to the official at&t update that came a few months ago. I assumed it was the software, but I've also read accounts of others saying they compared their phones with their wifes' or friends' and they're running the same build and they see the color differences.
The only final conclusion I've come down to is that OLED displays can vary and be inconsistent even between the same hardware devices, but the dulled out effect is pretty severe and not just a "barely noticeable if you look" kind of a thing. E.g. my friends all agree it's hard to play Temple Run on my phone because it looks extra dark (unless I put the brightness all the way up) and they can't distinguish well between the swampy water and the logged platforms =_= It's even worse when I watch movies and it's a night scene - the blacks are so black and undistinguishable from other shades of black, so a girl wearing a black jacket looks like her jacket is part of the night sky (whereas on my Infuse 4G, the blacks were very black indeed, but I'd definitely be able to tell where the hue differences were).

[Q] Folks, is this normal? Odd patterns on black screen

Having played with my S III for a day now, I've been mighty impressed by the vibrancy and contrast of the screen, however, during the evening, when the lights were off, I couldn't help but notice something peculiar.
To be clear, I have no clear dead or stuck pixels and the issue occurs when the device is on, displaying a black screen (though I first noticed it in video playback that had black borders). I'm unable to capture a shot so I'll explain this as best I can.
When on a black screen, there is a faint glow, when looking closely, there are patches of very dark segments throughout the screen that are true black, as opposed to the general glow of the device.
Does anyone else experience this? Is it normal?
Many thanks
Do they look like black splotches that can only be seen when viewing a black screen.in the dark? That sounds like the same problem all vitas have, something that is unfortunately a side effect of oled screens. My current phone, a samsung wave, doesn't have this issue though I've read that some other phones like previous galaxy s models produce the same problems. Bummer if that's it since I hated it in the vita
Scribe said:
Having played with my S III for a day now, I've been mighty impressed by the vibrancy and contrast of the screen, however, during the evening, when the lights were off, I couldn't help but notice something peculiar.
To be clear, I have no clear dead or stuck pixels and the issue occurs when the device is on, displaying a black screen (though I first noticed it in video playback that had black borders). I'm unable to capture a shot so I'll explain this as best I can.
When on a black screen, there is a faint glow, when looking closely, there are patches of very dark segments throughout the screen that are true black, as opposed to the general glow of the device.
Does anyone else experience this? Is it normal?
Many thanks
Click to expand...
Click to collapse
Yup its on all amoled devices starting from sgs 2 but its less on some and more on others but still I don't think it hinders usage of the mobile
I have this too and find it quite annoying (even though you barely see it, only when displaying a black picture and in dark environment).
Would be interesting to know whether really all S3s have that.
Arg, curses! Yeah I didn't notice it on my SII which is why it was such a shock on the SIII. It's only noticeable in a pitch black room but sadly now I know it's there I fear I'm going to be picky
I hope it's not the same problem existed on all galaxy tab 7.7 models which you could see circles and spots on a dark background in a very dark room. My nexus s and sgs2 didn't have it but it was so annoying (for me) on tab 7.7 which I returned it and never got another one. Take a look at this thread: http://forum.xda-developers.com/showthread.php?t=1463622
I hope it's not on all models of sgs3,I'm planning to get the 64gb model...
NeXusS i9020T - Slim ICS V3.8 - Matr1x V19.5
Speculation and more speculation... for once I would enjoy if people posted some evidences when complaining about an issue with this phone..
had this uneven black and white patches in my sgs2. it didnt bothered me much frankly
I'm wondering if this is due d
To the difference between amoled plus and amoled(pentile)....pentile screens can look blotchy, more so than the amoled plus screen
From my nexus tappin the talk
<edit post successful>
What is so annoying about it ? I bet that no one is looking at a black screen for more than a few seconds in a completely dark environment.
Try this: light up a few pixels on the screen and tell me if you still see the patterns. I bet you don't! S2 has the same "problem" and the thing is that if you switch to landscape the patterns dissapear and re-align. I guess it's how the amoleds work.
LeviathanPT said:
Speculation and more speculation... for once I would enjoy if people posted some evidences when complaining about an issue with this phone..
Click to expand...
Click to collapse
If you check the pics in the thread I posted you can see many pics of the problem on tab 7.7. It needs a DSLR with good exposure abilities to make the problem viewable on a pic ( though it is noticeable with the eye in the aforementioned situation ). If the problem is as widespread as it was on tab 7.7 this thread will be explode with pictures and complaints. *fingers crossed* that's not gonna happen hopefully.
blueseeker said:
What is so annoying about it ? I bet that no one is looking at a black screen for more than a few seconds in a completely dark environment.
Try this: light up a few pixels on the screen and tell me if you still see the patterns. I bet you don't! S2 has the same "problem" and the thing is that if you switch to landscape the patterns dissapear and re-align. I guess it's how the amoleds work.
Click to expand...
Click to collapse
If the issue is as bad as it was on tab 7.7 it is noticeable on any "dark" background, not only completely black backgrounds, like when you're viewing a dark pic or during dark scenes in a video or movie, I could even notice it in TW Settings.
NeXusS i9020T - Slim ICS V3.8 - Matr1x V19.5
Po0yAn said:
If you check the pics in the thread I posted you can see many pics of the problem on tab 7.7. It needs a DSLR with good exposure abilities to make the problem viewable on a pic ( though it is noticeable with the eye in the aforementioned situation ). If the problem is as widespread as it was on tab 7.7 this thread will be explode with pictures and complaints. *fingers crossed* that's not gonna happen hopefully.
NeXusS i9020T - Slim ICS V3.8 - Matr1x V19.5
Click to expand...
Click to collapse
I think this is still the sgs3 forum, want I need is proof of those issues on a sgs3..
Have the black blotches on my samsung infuse
Sent from my Samsung Infuse running AOKP.
LeviathanPT said:
I think this is still the sgs3 forum, want I need is proof of those issues on a sgs3..
Click to expand...
Click to collapse
I can assure you, I have this problem on my sgs3. Will be difficult to "prove" though as making a picture of it should not be easy.
I have it too. Not too much but they are.
Sent from my GT-I9100 using Tapatalk 2
Same.. Noticed it last night in the dark. Did not have it on my s2. Guess i wasn't so lucky this time
Scribe said:
Having played with my S III for a day now, I've been mighty impressed by the vibrancy and contrast of the screen, however, during the evening, when the lights were off, I couldn't help but notice something peculiar.
To be clear, I have no clear dead or stuck pixels and the issue occurs when the device is on, displaying a black screen (though I first noticed it in video playback that had black borders). I'm unable to capture a shot so I'll explain this as best I can.
When on a black screen, there is a faint glow, when looking closely, there are patches of very dark segments throughout the screen that are true black, as opposed to the general glow of the device.
Does anyone else experience this? Is it normal?
Many thanks
Click to expand...
Click to collapse
Yes, had the same problem: http://forum.xda-developers.com/showthread.php?t=1686633
lostsoul said:
Yes, had the same problem: http://forum.xda-developers.com/showthread.php?t=1686633
Click to expand...
Click to collapse
so your exchanged model doesn't have this issue? See at least we can be sure that it's not effected all the models like it was on tab 7.7?
NeXusS i9020T - Slim ICS V3.8 - Matr1x V19.5
It's impossible to see in the light/day time.
You need a pitch black room, with screen test app turn to black screen,,,slowly the wriggly lines and patches will show up. It is annoying yes - 2 phones were exactly the same defects. Each phone had it's own wriggly lines etc.
Tried to take a picture but it's nearly impossible.

Just got my S3. What are the Main issues i should look out for?

So i just got my S3. Its the 32gb White one :victory:
I'm familiar with most of the 'issues' regarding the S3. Here's what i've checked so far:
1) pink/yellow screen tint - I'm extremely happy that i do not have this issue, my whites are white
2) ink marks on screen - i checked this out. I have about 4 dots, they're all extremely tiny, i actually had to squint to see them so i was quite happy about this
3) Black Crush - Unfortunately i've noticed this issue. I watched the iron man 2 trailer and the "black crush" effect was definitely visible. It also effected a pic i was viewing. I used filter screen and that largely resolves the issue but it says that it can potentially mess up an AMOLED screen
Whats the deal with this issue. I heard supercurio is working on a fix, does that mean its not hardware related? or would it be wise of me to go in and exchange my device?
4) Some people have been having wifi issues. So far it mostly seems okay havent experienced any serious issues yet.
I've browsed the forums and these seem to be the main issues relating to the phones hardware. What other issues or defects should i check for? The place i purchased it from has a 7-day return policy so i want to make sure i have the best possible unit, since this is my phone for the next 2 years
One other thing which isnt really an issue. Amoled screens are boasted to have very dark/true black because the screen tech can turn individual pixels off, why is it that the black on the S3 doesnt seem that deep and it seems as if all the pixels are on? i'm just interested to know why it is like this
mits101 said:
So i just got my S3. Its the 32gb White one :victory:
I'm familiar with most of the 'issues' regarding the S3. Here's what i've checked so far:
1) pink/yellow screen tint - I'm extremely happy that i do not have this issue, my whites are white
2) ink marks on screen - i checked this out. I have about 4 dots, they're all extremely tiny, i actually had to squint to see them so i was quite happy about this
3) Black Crush - Unfortunately i've noticed this issue. I watched the iron man 2 trailer and the "black crush" effect was definitely visible. It also effected a pic i was viewing. I used filter screen and that largely resolves the issue but it says that it can potentially mess up an AMOLED screen
Whats the deal with this issue. I heard supercurio is working on a fix, does that mean its not hardware related? or would it be wise of me to go in and exchange my device?
4) Some people have been having wifi issues. So far it mostly seems okay havent experienced any serious issues yet.
I've browsed the forums and these seem to be the main issues relating to the phones hardware. What other issues or defects should i check for? The place i purchased it from has a 7-day return policy so i want to make sure i have the best possible unit, since this is my phone for the next 2 years
One other thing which isnt really an issue. Amoled screens are boasted to have very dark/true black because the screen tech can turn individual pixels off, why is it that the black on the S3 doesnt seem that deep and it seems as if all the pixels are on? i'm just interested to know why it is like this
Click to expand...
Click to collapse
My white is white too but not as white as my laptop monitor. it is not pink or yellow for me but not as white as white should be. I can live with this
black crush is there too i check with gamma pattern test. i can only see till 8. the 7 i can see the number but the border gone. So far not effecting my experience with the phone
also, some ink black mark is noticeable in gray or low gamma setting. i can see about 2 ink without squinting my eyes but if i squint i can see another 3 ink black on my screen. (This one i can live with it too but just wish there is not ink mark for a device this expensive..) - i checked with cousin S3 too, he had one ink mark in a same spot as me but his ink mark is less then me. I don't know if i need to exchange but when i search about this, it seems all samsung S3 has this
no wifi issues
I tried the Flashlight App and white is completely white without the slightest tint so the phone is capable of proper white.
I need one on HSPA+. I can get that through t-mobile right?
launcher redraw
My only gripe with this phone is the touchwiz launcher redraw.. it happens too often for my liking.

Galaxy S3's black vs other screen types' black

I wanted to test the super amoled screen of our sgs3 and see that black black its display can show !
Since i came from an HD2 , i thought for a while that the sgs3 had the blackest black i've ever seen.. but then curiosity came in and after some tests, it turned out that e.g the galaxy s 2 has a better black and that on sgs3 it is still a bit grey !
Also cheched a black photo to compare it with Nokia's N8 clear black display ..and got beaten as well >_>
I use Multitouch Visible Test to test the black of the devices along with the contrast of the colors when i touch the screen.
All tests have been done at night or at a very dark environment since at day there seems to be no difference.
My question here is :
Can you please confirm that this is a common thing among all of sgs3 users and not a display problem of my display ?
The gs3 lacks the true blacks that are possible with oled tech. I presume it was a compromise Samsung is making for some technical reason.
At first the grey tinge bothered me at night. Now, I don't care; the screen still looks gorgeous.
That said, when you first power on the screen, there is a brief moment where the blacks are truly off - ala gorgeous true black. The tinge might be modifiable in firmware or drivers, but I bet Samsung is lighting all the pixels for a reason.
Sent from my SAMSUNG-SGH-I747 using xda premium
phzi said:
The gs3 lacks the true blacks that are possible with oled tech. I presume it was a compromise Samsung is making for some technical reason.
At first the grey tinge bothered me at night. Now, I don't care; the screen still looks gorgeous.
That said, when you first power on the screen, there is a brief moment where the blacks are truly off. This might be modifiable in firmware or drivers, but I bet Samsung is doing lighting all the pixels for a reason.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Exactly my observations and thoughts ! Thank you my friend at least it is not only me
of course it is still a great display .
I really feel its to reduce the black clipping in dark images and videos which are prevalent on the Galaxy Note and the galaxy nexus.
There was a software solution to reduce the clipping with an app called "Screen Adjuster" which, basically reduces the contrast and makes black "grey". The plus point was that, there is no clipping then.
So I guess samsung has done the same to the S3's screen as maybe they realized that the clipping us a Pentile HD AMOLED limitation.
This maybe helps?
http://forum.xda-developers.com/showthread.php?t=1688896
Surely if rooted it's possible to set up a toggle for the standard 'true black'? I used to use the s2 to read white text on a black background and it was very satisfying to see only the white text with absolutely no glow. This was one of the reasons I went for the s3 over the one x.

Is the TAB S6 AMOLED screen really that bad?

So I currently own a Tab S4, Note 10+ and Note 8 and I've been impressed with the AMOLED screen. Today I got a Tab S6 and I'm severly disapointed by the screen quality. Compaired to the other AMOLED displays, this looks like an old LED panel, pretty bad quality no deep blacks, low contrast and the same image looks totally different over the two Tab screens. Additionally, when something comes up that blurs the background, the effect is more like a severly reduced pallet count rather than the normal blurring effect.
Is this normal for the Tab S6 or is this a bad unit?
I've also had trouble with the under screen finger print scanner not registering fingerprints, so I'm thinking faulty...
I haven't had any problem with the screen nor the fingerprint. Might be a bad unit.
No problems with mine...Everything looks great. Just a thought...When I first got mine up and running it looked a little dim as you describe. I went into the settings and put it on vivid and it lit up and was a totally different look. But if that don't help then probably a faulty screen.
Come from the tab s3 have an s10 plus as my daily phone looks just as good as the s10 plus in my opinion.
Nope it isn't
I did try that, but even with vivid on it still looked washed out
undergrid said:
I did try that, but even with vivid on it still looked washed out
Click to expand...
Click to collapse
Yeah sounds like a bad screen....I would take it back.
The quality control is awful, I've had three which I've returned due to uneven black levels.
Samsung are obviously aware of the issues with the displays but they don't care because many users just don't complain about it, or don't know what to look for.
Apparently there are a lot of people having uniformity issues with their devices and there doesn't seem to be one free of defects. As always it's the OLED lottery! Exchange until you're satisfied.
Shocky2 said:
The quality control is awful, I've had three which I've returned due to uneven black levels.
Samsung are obviously aware of the issues with the displays but they don't care because many users just don't complain about it, or don't know what to look for.
Click to expand...
Click to collapse
We are all techies in this forum the average user would probably not even notice if the backlight was uneven especially if they have come from an old non OLED device I think that's probably part of the issue
Jeffro64 said:
No problems with mine...Everything looks great. Just a thought...When I first got mine up and running it looked a little dim as you describe. I went into the settings and put it on vivid and it lit up and was a totally different look. But if that don't help then probably a faulty screen.
Click to expand...
Click to collapse
Totally different look that gnus hooked people up on, and milliards of nobbs saying that amoled is way superior tehnnologi. Now it decided to turn around and present natural colour palette (with uneven wrinkled display to boot), i agree that it can be not so good to look at it after vivid
Shocky2 said:
The quality control is awful, I've had three which I've returned due to uneven black levels.
Samsung are obviously aware of the issues with the displays but they don't care because many users just don't complain about it, or don't know what to look for.
Click to expand...
Click to collapse
Im in the same position as you and I already bought 3 Tablets that had unsatisfying black levels. I feel bad for buying and returning them and I am asking myself if I should keep trying or just give up.
The OLED display on my note 8 looks so smooth and even. I wish I would find a similar tablet display.
Did you finally find a unit of the Tab S6 that has perfect blacks ?
Rapidfire93 said:
Im in the same position as you and I already bought 3 Tablets that had unsatisfying black levels. I feel bad for buying and returning them and I am asking myself if I should keep trying or just give up.
The OLED display on my note 8 looks so smooth and even. I wish I would find a similar tablet display.
Did you finally find a unit of the Tab S6 that has perfect blacks ?
Click to expand...
Click to collapse
Unsatisfying black levels? How is this possible? Black should be totally black LOL xD
Do you mean the grey color or something near black? Or you guys really talk about true black color? ( for example when booting up the device )
True blacks are fine, but it doesn't handle mixing very well - Compression and noise is easily noticeable at that point.
For example : The blacks in this video look terrible and Compression is easily noticeable when mixing the Vegas sign and the landscape of the city.
But in this video, they're perfect - The only noticeable problem in this video for me is when the camera is panning the planet and mixing black, purple and blue - at which point some minor noise is present but the rest is fine.
bartleby999 said:
True blacks are fine, but it doesn't handle mixing very well - Compression and noise is easily noticeable at that point.
For example : The blacks in this video look terrible and Compression is easily noticeable when mixing the Vegas sign and the landscape of the city.
But in this video, they're perfect - The only noticeable problem in this video for me is when the camera is panning the planet and mixing black, purple and blue - at which point some minor noise is present but the rest is fine.
Click to expand...
Click to collapse
What about Galaxy tab s4? Is it the same as S6?
iSilverBullet said:
What about Galaxy tab s4? Is it the same as S6?
Click to expand...
Click to collapse
No idea - I came straight from the SM-T800.
tab s4 has a better screen
Rapidfire93 said:
Im in the same position as you and I already bought 3 Tablets that had unsatisfying black levels. I feel bad for buying and returning them and I am asking myself if I should keep trying or just give up.
The OLED display on my note 8 looks so smooth and even. I wish I would find a similar tablet display.
Did you finally find a unit of the Tab S6 that has perfect blacks ?
Click to expand...
Click to collapse
No, I'm not concinved there are any perfect displays. I still have one corner that's darker, honestly this experience has put me off Samsung. As soon as there's an Android tablet with better specs I'm done with this, I might be done with Samsung to be honest, the punch holes in their new phones are horrible and they're overpriced..
What's the best way to check the uniformaty of the panel in the S6? I don't believe I've got any issues but better safe than sorry!
Tab S4 much better will return the s6 I just bought as you can see grey in blackboard in so.e videos which you don't on the tab S4. Hopefully replacement will be better.

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