yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] EarlZ:
I can share a little bit of information on my end, even if I've sent my note back to samsung they still keep me posted

They believe the issue can be rectified by a software update which can be very true to a certain degree but id rather NOT hold my breath till its out, ICS may or may not fix this problem as it is the same issue on the Galaxy Nexus which is a flagship device but only enough on the Nexus forums they dont really give a crap about the clipping issue.

If they say the issue was on the file then they should have used all other SuperAMOLED based devices to test it and they would understand that its not a file issue.

Barely visible in a well lit room but annoyingly visible when you dont have a direct light on the screen.

My screenshot alone proves how horrible it is!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Funkym0nkey:
Ok, I have iPod touch (4th Gen), Galaxy Nexus, Note and my sister's Moto Razr here and to be frank those black artifacts we see on the Real Steel video are present on all displays to varying degree.

There are artifacts present in the video file itself. The LCDs will mask it to great degree thanks to the backlight that overwhelms to some extent. You can see these even on your PC. I have U2410 IPS display at my work station which is a professional grade monitor and artifacts are present in the video but they are not as bothersome as it is on the phone displays. To be honest from 2-3 feet away you wont notice them at all.

The Pentile AMOLED on the other hand will highlight things like this. These show up on Nexus as well as Razr and our Note. I am on my second Note which I got just today. Made in January 2012. My old one is made in October 2011.

Both show the artifacts but the newer one has fewer of them and almost invisible but they are there if you look closely.

Same case with nexus and Razr. This is more of a hardware limitation than a specific problem for specific units. Just intensity of issue is slightly varied.

On my all phones I can see the grid lines in the iron man picture though its hard to see on Nexus due to its higher pixel density, but they are visible.

I dont think there is a quick fix to this issue. Its a pentile screen and to some extent we will have to live with it. Thats the price we pay for having HD pentile screen.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] EarlZ:
On the DellU2410 you'ed have to look for the actual artifact to see or even notice it as compared to the Note and Nexus where it smacks you right in the face, I also see the same artifacts on a U2410 but nothing on the Galaxy S2, Tab7.7 and a Samsung plasma display, nothing on my 32" LED-TV as well.

The main issue here is that there is an incorrect gamma profile on the Galaxy Note and Nexus, it could also be a technology limit but I think it can be fixed with a proper gamma scaling to its darkest point to actually make the transition smoother.

Even if you do a 1:1 bluray rip on the same movie there will be visible artifacts which is caused by the display medium or its gamma profile if its incorrectly set.

also by checking the gamma test image which is very consistent and objective, should explain that there is a sudden drop off in color information, this makes the 'its also there on the video file' invalid. If the transition from 21 to 0 can be made smoother w/o making the entire scene to dark, actually thats one of the problems on the previous generation SuperAMOLED devices, shadow area's are to dark. I also watched the real steel clip on a PLS screen ( Tab10.1 ) and I can only see tha black clipping if I pause it and have to look for it.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] fl4r3:
Its weird how the problem is more persistent in the youtube app than in the same video on the browser. I haven't had time to try my own videos yet as its only been two days with my new Note (but also means I saw the issue straight away!).

I think its a gamma issue overall. Some of the test images I tried suggest the gamma is set quite low.

For now I've left the screen mode in movie.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Latoc:
I just tested a HD video on my Note with a fresh install of AOSP v04.

Just remember that it is the first version where video playback is working out of the box with the built in player. Before that you had to use another player.

The video comes from the Blackberry Playbook, it is a demo HD video that comes with the tablet to show its power...

This video has a few scenes, especially dark ones of course, where the clipping is horrible, even though they play fine on other devices...

TEST:

First with the stock gallery app: clipping is gone for good, no trace of it !!!

Then with MXPlayer: clipping everywhere just like before.

Then tested the LCD Test picture where you have all the squares from white to dark,

where I could not see anything under number 4 with Gingerbread.

TEST:

With stock gallery app: I can see all the way to 1 !!!

With Quickpic: can't see anything under 4.

CONCLUSION:

for my phone it is a software issue and is clearly fixable with a software update.

Needless to say, I'm going to stick with this rom. Everything is perfect now.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] ages_devil:
i tested this one after seeing a lot of artifacts on the videos, my note does not show all the grey ... is this a bad thing ?

as for the artifacts it's only visible in low resolution low bit-rate avi files, other than that the note plays everything else just fine, even some low resolution mkv files shows artifacts and black blocks but they are not visible like the ones that appears in the avi files.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] EarlZ:
You'ed be the only one who can judge if its good or bad, the point of that image is some screens can display it properly while others cant this is why some screens dont have the clipping.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] ages_devil:
i can live with it, a little of a disappointment maybe but it's ok

i've also tested some mkv files with high bitrate and the colors are much more better.

my point is this was never mentioned in most (if any at all) reviews that i've read before buying the note i would've got a galaxy s2 instead because i use it most of the time as a pmp ... i just hope that some kind of a fix would come out for this problem.

EDIT:

yesterday when i was trying different pictures, i found that when using a black wallpapers for the lock-screen it turns to grey and i even captured it and it is grey(specially when trying to unlock the note, grey lines appears all over th screen) the problem is that when i upload it to the pc it appears completely black
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] EarlZ:
@ages_devil

I've only seen 1 review to cover this issue but he only mentions 'visible artifacts' when viewing dark scenes. Its quite obvious why reviewers dont cover or revisit this issue.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] needachange:
Hi all!

I have this same issue on my Galaxy Note N7000. On almost every video, i see color banding if viewed in complete darkness. It is visible on apps like Market and even Calculator (the top area where digits are displayed). If it is related to color depth, was Samsung so dumb to not take care of it in stock apps at least before releasing the handset?

One thing i would like to mention here is that this same problem was there on my Nokia N8 as well which again was an AMOLED screen. I exchanged it for a new one in a couple of days of its purchase and that didnt have this issue.

I have a weird feeling that it relates to HW, so there wont be a SW update to set it right.

Someone please prove me wrong coz i really love this handset otherwise.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] voxano:
If you are rooted, try setting the screen resolution from the default 320 ppi to say 240 or 285 and see the banding almost go away... It's by no means perfect, but demonstrates that whatever inherent screen hardware (d)effects there are, they can be compensated by proper software... e.g. proper gamma calibration settings, among other things...
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] needachange:
Too bad, mine is still a virgin :P

But that gives me one more reason to root it. Thanks
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] voxano:
This was just to say that, based on these and other tests, IMHO most of these screen (d)effects can be "calibrated out" in the software... Samsung seems to be doing better at it already judging by the LC1 update and their firmware for the AT&T Note... Then again superquirio may eventually release a solution as well...
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] voxano:
I second this, with the XXLC1 on my German note the color banding is gone on the lock screen with black wallpaper AND the banding (but not the black clipping) is greatly improved during video playback!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] alrey:
noticed that there is an improvement if the ff are done (bearable now):

- update to lc1

- switch to movie mode

- disable auto adjust screen power
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] CaptnSpaulding:
Anyone able to upload the 'Lightness and Slimness' video for me? I've tried the links in this thread but they all seem to have been removed.

Much appreciated!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] voxano:
Here you go:

http://db.tt/SvDZHO39

Let me know when you are done, so that I can remove it when I need to.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] jdolmen:
Hi,

my Galaxy Note has a decent display. However it suffers from black clipping when watching video, pictures etc.

I was using screen adjuster to alleviate it, however it consumes CPU.

I've found a program called SunFilter which consumes little CPU.

In movie mode (the other two are useless BTW, over saturated and unrealistic colours....) you can try to set in the SunFilter app:

Color1: 28

Color2: 34

Color3: 25

Intensity: 72

Custom

Let's see in the meantime if Samsung can bring a solution for this (I doubt it

though...)
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] jkc120:
It's fixable

I'm 99% sure the Note can be fixed with software, provided a similar access method to what is being done with the "gamma control" feature of Nexus kernels exists for the Note.

I just flashed Lean Kernel 3.2.1exp1 on my Gnexus and holy crap it looks GREAT. I found the sweet spot for me to be a gamma of 7 (default is 5) but some videos need 8 or higher. But 7 eliminates almost ALL the black clipping/color banding/etc in the videos I've been using to test.

I really hope this gamma control feature comes to the Note soon. I'm very confident it can be fixed in the same way, as long as there's a way in the kernel to control the gamma.

woohoo!!! so stoked!

http://rootzwiki.com/topic/13092-le...1-41212/page__st__8630__p__616858#entry616858
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] RudiRulez:
can someone do me a favour and get a clear photo of the problem, and a link to the video and time of which its occuring in the photo, ive watch many video's from that slimness one to the MIB 3 trailer and can't for the life of me see what the issue is :/
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] marz.dk:
SunFilter is the best solution i have tried so far.

The settings are essential!.

We only want to change the deepest black.

Color1: 255 max

Color2: 255 max

Color3: 255 max

Intensity: between 1-5 find your optimal

Thats it. Videos without Black blocks. But it raises the black a notch!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Octhellion:
Could you or someone else please upload the SunFilter apk please? Can't be downloaded from the market as apparently it's incompatible with the Note running CM9..

Thanks in advance.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] janice1234:
Samsung developer need information about black clipping issue

Hey guys, please provide more information regards the black clipping issue to the attached links, Samsung developer is required it. :)

Hi,

Please provide information about your phone -
build and kernel version, where this occurs.

Regards,
Adam Panasiuk
Samsung Developers

http://innovator.samsungmobile.com/bbs/discussion/view.do?boardId=1132&boardName=AndroidBoard&messageId=155754&messageNumber=&messageCategoryId=4&startId=zzzzz~&startPage=1&curPage=1&rowsPerPage=10&searchType=TITLE&searchText=&searchDays=0&searchTitleFlag=false&searchContentsFlag=false&searchRegisterNicknameFlag=false&lastPageFlag=&categoryId=800&parentCategoryId=4&platformId=1&selectOrder=REGISTER_DATE&selectOrderDirection=DESC&searchParameters=%2Fbbs%2Fdiscussion%2Fthread.list.do%3FlistLines%3D10|searchType%3Dtitle|curPage%3D2|selectOrder%3DREGISTER_DATE|selectOrderDirection%3DDESC|messageCategoryId%3D4|&nacode=&listLines=10&searchTextForm=&searchTypeForm=TITLE
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] SpyderTracks:
Hey, seriously, well done guys for getting Samsung to look at this, shows the power of xda! Congrats!

Sent from my Paranoid Android GT-N7000. It doesn't get much better than this!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] badabander:
i registerd to post exactly this. in mobile's movie screen mode, i tried the software decoding feature of MX player and moboplayer. MX played both clip flawlessly. mobo made audio go out of sync in iron man clip though video was flawless. point to note here is that iron man clip has horrible banding issue even when viewed on pc.

i also tested that glee clip which started this all. same conclusion. in software decoding, things look as good as they look on pc though audio goes out of sync in both players. i have watched couple of movies/ tv shows with dark scenes encoded by various release group, in software decoding mode and they worked flawlessly.

but as soon as i enable hardware decoding everything clips. i am on stock ICS 4.0.3.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] kisstom:
It is because ICS?

I tryed this with GB 1 month ago with no differences.

I changed the Note but if it's works i get another one.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] sibere:
accordinf to his recent tweets, SC has fixed the black crush issue, but only for the sgs III; a more popular phone representing a bigger market. :-\
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Haints:
So ... I take it this remains an ongoing issue?

With no universal solution?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] seepage:
So are you saying the phone is fine and its only the files which are at fault?

Which by the way include video and photographs taken by the phone itself.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Xaddict:
Well, the display hardware is fine.

Some of the files may be of low bitrate, 16bit or less, and some of the viewing applications may be of lower bitrate, 16bit or less.

The phone has a 24bit 16 million colour display.

Some apps, including the picture viewing gallery app do not display 24bit colour in the 24bit quality they were made. See here

You won't get perfection with every image or video file you see on every device, but you will have the best possibility on a 24 bit display, such as the Note has, with 24bit applications such as Dolphin Broswer HD and Diceplayer.

It will be a while before the world catches up with 24bit.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] koniakki:
Is this something similar(or exactly tha same), like the HDTV's which have 8 or 10 or 12bit panels?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
Question ?

Now I'm not sure if my analysis was right.

The problem is in the rendering of the blacks.The only video were this is perfect is the video that came with my Note especially about 50s after the beginning ( the blacks there are perfect ) . But as I understand with an amoled screen the black are not a color but in fact the abscence of a color.

I'm guessing here.Is it possible that the converters we use do not take that in consideration and do encode blacks as dark greys so missing the point of an amoled screens.

If this is the fact the problem would be visible also with a Galaxy IIs , can someone confirm this.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Xaddict:
YES! Exactly. 8bit VS 10bit VS 12bit .

If a TV Station is broadcasting SD(standard definition) pictures, they will look poor on an HD screen, with noticable banding. Check this out by getting close to the screen. Use your remote to get details of the signal and see the difference. They won't look so noticable on a standard def CRT, because it's all bad. What to do, go back to SD? Or live with lo res content mixed with 1080p HD?

---------- Post added at 09:11 PM ---------- Previous post was at 08:49 PM ----------

No. It's the rendering of low pixel information videos.

No.I can play hi res 720p MKV's(True Blood 4) which look fantastic.

This is true of any screen, it's the colour additive principle. R+G+B=White, R-G-B=Black. Mixes are all shades and hues in between.

It's just that poor video doesn't look great on a good screen.

Not sure, don't own a Galaxy SII but they are different screens.

Maybe the SGSII is 24bit.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] qazzi76:
Does Diceplayer render videos on the Note without banding/blocking/pixelation?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
OK but.

You're assuming that the problem consist in the poor quality , low bitrate of video material.

Can you explain to me the following problem ?

Yesterday I downloaded the latest House MD episode in MKV format 720p.

I encoded it with xilisoft encoder to MP4 , 10000 kb bitrate , ( HD MP4 quality ) and also to H264 . And also with a program called encoder that I find on XDA developpers at the time of the HD2 , this one can only manage encoding up tp 1000 kb.

I put the different results on my Note ( on the sd card but also on the internal memory , but also on my HTC Sensation and on my Asus EEE Pad transformer.

And now the results:

To begin I could only play the MKV on the Note , the H264 and MP4 work on the 3 devices.On all the 3 devices quality was very fine and you could see that this was hd quality .On e Asus and the HTC the blacks were alright on the Note with every kind of file MKV,H264 or MP4 the blacks were rendered as cloud of grey , quality of the details was ok but on the black hat of the clown at the beginning there are grey spots and during the opening credits with a lot of dark/black scenes awfull grey clouds less noticable when you look at it in daylight but not watchable in a dark surrounding.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Xaddict:
Yes, if 720p hi res.

I tried to take a screen capture but it didn't work, but I have a 720p ep of True Blood 4 which looks sensational. It is a very good pictue on my Bravia too. Tied to copy 6Gb of Limitless 720p but something happened. Will try again.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] MartijnMM:
Try these files:

House.gamma.for.asus.and.htc.mp4 compare this on asus and htc with the original on the Note

House.gamma.for.note.mp4 check this one if its better then original.

House.gamma.mp4

House.gamma.for.asus.and.htc.mp4

House.gamma.for.note.mp4
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
Dice Player

Tried Dice Player , same same.

I'm at worrk now .Show a 10000 kb 1080p trailer at my collegues in broad daylight with the stock videoplayer , with Diceplayer , with Actvideo and with MX player ( I could not notice any difference in rendering quality) they were all impressed , crystal clear and deep blacks , superb colors after that did the same but in low llight environement and all the black had grey spot are even grey cloud.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
Thanks

Hello Martijn ,

Thanks I'm downloading and will try the files on the three devices.

Will be back at you then.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] ballfire:
ok just tested that house on the note.there are several scenes where the rendering is real bad. at the 15 second mark where the girl is sitting on the chair: to the right of the screen or the girls left, the chair is all pixelated.

at the 43 second mark where the adult on the left has pushed the clown, the top he is wearing is all blocky.

at the intro 1:06 where the name omar epps comes up the black/grey blocks is bad.

any one else have my issues?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
Tested

Hello ,

Tanks for the files so we all can test.

Done the test and still the same . Look at the files in daylight and everything is ok on the Note , look at them in a dark place and you got a haze and especially the blacks are awfull.
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] MartijnMM:
Its can still be a codec problem, so please try these 2 files too.

(not into these codecs, so just took some settings, not optimized)

http://www.mediafire.com/?53da859r2gu8b8q,p4zi4js5g42uxu4
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] BerreZ:
Thanks ,

Both files presented the same problem.

So it's not hardware : the provided video plays perfect blacks

It's not a codec problem : The grey haze/dots is present in mp4,H264,wmv,divx,mov and mkv files.

It's not the bitrate : I have tried videos with a bitrate from 15000 to 600 kb.

It's not the resolution of the screen : those files are ok on my Asus Transformer

It's not the Amoled screen : No problem with the Galaxy II.

It's not the quality of the file : Got it with 1080p,720p and normal movies.

Could someone provide us with the specifications provided video " lightness & slimmeles " ? ( codec,bitrate,framerate).

I've found a way around for the moment to play the videos with almost correct blacks.I use DicePlayer , auto brigtness off ,brightness at +- 10%.

By the way has someone contacted Samsung ?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] indie:
I have just downloaded and seen your file. WOW is it bad. The black is not right at all. However i have seen a few films already on my Note and none of them exhibit what your file is showing. There have been dark scenes in my films and they are perfect and some have a lower bitrate. I can only think that its something in the file or video and the way its been encoded. Have you tried other films and are they all the same?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] paulshields:
Your sample certainly shows poor handling of blacks. It's odd though, as I've watched videos that have lots of dark content and they look fine, but others (like this sample) look awful. I still hope that it's more of a software issue than a physical issue with the screen, but would certainly be interested in what Samsung say about it...

[edit]

It would also be useful to know how that clip plays on an S2 or the Galaxy Nexus.

I've asked on the Galaxy Nexus forum to see if it's unique to the Note (they share similar screen resolution and screen technology)

http://xdaforums.com/showthread.php?p=19512458#post19512458
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] DMax99:
maybe someone can email Samsung Support about this issue??!
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] DarkStone1337:
I can only guess that for some bizarre reason, the Galaxy Note is handling colorspace conversion badly. Perhaps the colorspace on the Slimness and lightness video was different than to those that we are trying before conversion.

I have uploaded some samples to see if my theory is correct.

Info: http://avisynth.org/mediawiki/ConvertToYV12#Options

I suspect that the Note is converting to 16,235 but is displaying the video on a device which shows 0,255. This will show blocking and make blacks look more grey.

Examples on my computer:

Here are some sample videos to check on your Note and computer:

http://www.multiupload.com/MIWW24INAG - Original

http://www.multiupload.com/9PR4TFO0H3 - Rec709

http://www.multiupload.com/BA695W7110 - PC.601

http://www.multiupload.com/M0IUMYZJYS - PC.709

Please test these videos and tell me which one looks as close to the Original when played on the note.

I could be completely wrong of course, I don't actually have the Note yet. :p