yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 General] little-vince:
i set alpha to 7, rgb to 255 and the black crush has been reduced significantly!!

thanks heaps!!

but when using the avengers trailer as a black crush test, there are still a few scenes that have quite noticeable black crush.

still an improvement though. :D

EDIT: the filter fails to apply at boot... :(

which is a shame cuz it means i need to manually run the app at boot, which is quite annoying to say the least.

yes, i have the apply at boot option checked. it still fails to run. =.='
[Galaxy Note GT-N7000 General] tonyking:
betoNL dude u deserve a hug for this u made my day i had bought note for watching movie and playing games in movie i was having that f...k clipping prob now every thing is really fine and one thing more screen adjuster is working fine but filter you screen app has prob

so thanks for all dude u rock
[Galaxy Note GT-N7000 General] nipuna:
On ICS 4.0.4 with LRG sammy or CF root kernal clipping seems minimal. Just compared it to g.lawrenes kernal which performs much worse.

Seems that Sammy has improved things.... Looking 4wd 2 4.0.4 opensource n kernals from g. and speedmod..
[Galaxy Note GT-N7000 General] betoNL:
And you didnt even press the "thanks" button :D

Well...I just get some black clipping on a very few videos so I use filters only on demand...for me the less apps run at boot the better

The whole app doesnt start at boot or only the filter?

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[Galaxy Note GT-N7000 General] little-vince:
The whole app.
[Galaxy Note GT-N7000 General] jtribaco:
gonna try this :) already hitted mate
[Galaxy Note GT-N7000 General] betoNL:
Right now I am using only " filter your screen" app on demand off course....And easily disabling the filter when I don't need it, anymore, from the status bar....

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[Galaxy Note GT-N7000 General] aurator:
I don't have the Black clippings on my phone. I've tried the darkest of videos in 720p quality but they're all perfect, except for 2-3 videos where I do see some black clippings.
[Galaxy Note GT-N7000 General] little-vince:
Use the avengers trailer as a black crush test and if you still don't get clipping then wow...

Maybe you are really lucky to have like 1/1000000 chance of a good note. :P
[Galaxy Note GT-N7000 General] aurator:
I've got no black crush! Every darkest of detail is just perfect in the trailer! :D

Yay for my lucky note :p
[Galaxy Note GT-N7000 General] little-vince:
Haha. Congratulations!!

I'm really jealous. :P
[Galaxy Note GT-N7000 General] aurator:
Thank you! :p :good:

And its not only me. One of my friend also has a perfect screen! :D
[Galaxy Note GT-N7000 General] little-vince:
Really? Where did you guys buy your notes from? Was it from the same place?
[Galaxy Note GT-N7000 General] satishp:
could you post a photo of your Note displaying the Gamma test image in a dark room?
[Galaxy Note GT-N7000 General] aurator:
Nope. Not the same place. He bought his phone back in November, a week after note was launched whereas I bought mine this April!
[Galaxy Note GT-N7000 General] aurator:
I seriously have no idea how to do the Gamma test :/

Could you guide me please? :)
[Galaxy Note GT-N7000 General] little-vince:
Lolcat. I asked where, not when. :P
[Galaxy Note GT-N7000 General] aurator:
We bought them from different towns. 400 kms away from each other!
[Galaxy Note GT-N7000 General] betoNL:
Before you ho celebrating your luck, flash another kernel (other than speedmod K3-11) and watch that clip again :cyclops:

Edit: and dont forget to set it 1080p

Edit2: And have a look on that rusty nails clip

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[Galaxy Note GT-N7000 General] Braxos:
1080p isn't a native resolution for the note 720 is near it check 720 and then 1080p and see the clipping go worst.
[Galaxy Note GT-N7000 General] N1NJATH3ORY:
spot on you are, it turns it into Garbage LCD style.. i hate that app.. i personally prefer the messed up blacks... As some parts video playback is so perfect, it makes up for the messed up parts... LOL

---------- Post added at 11:09 PM ---------- Previous post was at 11:00 PM ----------

True.. but 1080p is way better if you check the videos that are shipped with the Samsung Galaxy Note Those vids are 1080p ??? And the black levels are PERFECT on those vids flawless playback :)
[Galaxy Note GT-N7000 General] CONTACTMC:
Guys its not the black level that is the issue, its the shades of grey that are missing between 3 and 4 on the gamma test image, u either get total black or light grey with nothing inbetween, hence whenever a image has these missing shades in its content the Note does not know what to do except show the closest it can to that shade (black or light grey) hence the blocky crush effect.
[Galaxy Note GT-N7000 General] betoNL:
There is nothing spot on

Learn how to read and then you will realize that not every Note is the same

On some Notes the back crushing/clipping make some videos unwatchable, and using a filter on-demand, will make that specific videos more watchable

And on many Notes, just by using Speedmod kernel (k3-7 for ics 4.0.3 base and k3-11 for the 4.0.4) the black clipping on some videos is practically gone, so no need for 3rd party filters

And yes there are those Note with a perfect screen that don't need any tool or mod kernel....

And on my Note I never have black clipping, when I rip/convert the original video myself
[Galaxy Note GT-N7000 General] N1NJATH3ORY:
Calm down dude im just saying we paying premium for our smartphones then we end up using third party crap to make our selfs more happier its a bit of a joke isnt it?? anyway on a serious note now... you/rip convert vids your self what format frame rate ect is the best for the GNote Playback ??

---------- Post added at 09:15 AM ---------- Previous post was at 09:11 AM ----------

Gama test image where can i get one from ??? also this is my second note my first one was a joke black clipping was awful on it but my second note is much crisper on the blacks :)
[Galaxy Note GT-N7000 General] katamari201:
Hey i see a lot of people ard experienced with these screen adjustkng apps. I currently using screen adjudter. All i wang to do is dim the screen more since thd brightness set at lowest isnt low enough. Screen adjudter is doing fine, but do you recommend anything else? I havent used it long enough to notic3 lag.
[Galaxy Note GT-N7000 General] CONTACTMC:
Gamma test image:

https://rapidshare.com/files/705258913/gammatest.png
[Galaxy Note GT-N7000 General] yorufus:
Which converter do you use?
[Galaxy Note GT-N7000 General] N1NJATH3ORY:
Thanks but dam it totally drops off after 4 the 3rd block gets shown for a spilt second then it drops off 2 and 1 are no where to be seen ??? Thanks
[Galaxy Note GT-N7000 General] CONTACTMC:
Its that drop from grey to black that is the issue, its meant to be a nice even fade all the way down.

Our Notes are missing some shades.
[Galaxy Note GT-N7000 General] arinsms:
My best setting to remove all black clipping and pass all black level calibration test is using -8 contrast (screen adjuster) +Speedmode K3-12
[Galaxy Note GT-N7000 General] rraaka:
are the remedial measures for black clipping same as for artifacts mentioned by satish in a different post couple of days back ?
[Galaxy Note GT-N7000 General] vcespon:
Using "filter your screen" app I see a difference just by setting Alpha = 4 and letting RGB = 255. This only changes the lower black levels.

Using gammatest.png as reference, I usually see an almost uniform shade of gray from 20 to 4 and then pure black.

With the filter on I see a more marked gradient from 20 to 1, and 0 is pure black. Of course this makes everything display in a more realistic way.
[Galaxy Note GT-N7000 General] betoNL:
Speedmod K3-12

In the meantime, I can say, I like screen your filter app, much more that screen adjuster app, for all the reasons already posted on this thread and more...

But now I can once again confirm !

Speedmod K3-12 is greatly reducing black clipping again :victory:

EDIT: Also choose MOVIE screen mode is /settings /display /screen mode

Not to mention it is more energy efficient than ever !! Battery just wont drain !

Highly recommendable :good:
[Galaxy Note GT-N7000 General] nikz106:
Thanks a lot for this beautiful tips and the application.. Before it was very embarrasing for me to show any video to my friends which had dark colors on this costly note.. But now hell yeah its enjoyable!! :)

Kingdroid ICS + Speedmod K3-13..

And changed contrast to -7 in Screen adjuster rest unchanged.. Screen is more beautiful now..
[Galaxy Note GT-N7000 General] Rivan_92:
On the gamma test I can see all the way to number "2" when using "Film Mode".. On "Standard" it is only down to "2".. Im on SpeedMod kernel without any "Screen App Adjuster"...
[Galaxy Note GT-N7000 General] hellkun:
satisfied with the screen now, but will try this method and see if it'd be better
[Galaxy Note GT-N7000 General] valtersboze:
Screen filter degrades performance. Flipping screens on desktop is laggy now ;/
[Galaxy Note GT-N7000 General] betoNL:
As I already wrote, filter your screen app is less buggy then screen adjuster

Edit- And very easy to use on demand....you can disable it from status bar....quite handy

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[Galaxy Note GT-N7000 General] Infy_AsiX:
This sounds cool. I've been contemplating a note for my girlfriend but the black clipping was enough reason to steer clear.

So does speed mod with a filter fix the clipping but leave all the blacks looking greyish still? Is it worth stepping in for a purchase or is it just manageable and at least much better than normal?

Also what's the link for speedmod. Is it gb only?

Sent from my Optimus 2X using Xparent Cyan Tapatalk 2
[Galaxy Note GT-N7000 General] betoNL:
-First of all, not every G Note is the same. Some got screens with no issues at all. So you won't need filters, or recompiled kernels etc etc.

-If you do use filters, you will get rid of the clipping, but also deep blacks. That's why I use them only on demand.

-Seems to be, the GNote 2 is just around the corner... I would wait if I was you. Also because when GNote 2 is out, prices of the GNote 1 will go down, so you can compare and decide.

Speedmod thread:

http://xdaforums.com/showthread.php?t=1673072

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[Galaxy Note GT-N7000 General] NutZInTheHead:
Well thanks to OP for this.

I installed the app and it does work. Although I have it disabled unless I want to watch a video.

I tested this at different contrast levels from 0 to -75 in a pitch black dark room.

On my Note setting the contrast to -30 to -35 works fine.
[Galaxy Note GT-N7000 General] Infy_AsiX:
How much of an improvement is a kernel fix? How close can it get without greying blacks?

Sent from my Optimus 2X using Xparent Cyan Tapatalk 2
[Galaxy Note GT-N7000 General] Hypernote:
Where its speedmod thread?
[Galaxy Note GT-N7000 General] tribalkg:
Really? 3 posts above your question.
[Galaxy Note GT-N7000 General] sonhy:
software issue and not hardware?!?!?

For my white gnote, it seems to be a software issue - Most of the time when i play the Underworld: Awakening 480p dvdrip, its ridiculously unwatchable, but once in awhile 95% of the black clipping just goes away - from 320p like youtube videos showing huge 3mm black boxes in dark areas to looking like an actually dvdrip with nearly no boxes at all.

I just cant reproduce the situation... I think it is some 3rd party app running behind the scenes that maybe doing what those filter apps do, but then again, the black pixels are not greyish at all, so it doesnt seem like its filtered.
[Galaxy Note GT-N7000 General] arinsms:
I switch to Notecore V13STD, huge clipping reduced compare to K13 speedmode, if K13= 92% I would say notecore is 98%...Now I dont need the screen app..at last
[Galaxy Note GT-N7000 General] rraaka:
i tried 'filter your screen' with the following -

and make a filter with this value :

Alpha = 7 (set between 6-9)

red = 245

Green = 235

blue = 255

(taken from a suggestion in here but cant remember who)

everything remaining constant

with video of the Kiss of Iron man 2

there was a HUGE difference in the positive way

before it was pathetic

no role of kernel

on alliance rom 2.1 with speedmod 3-13
[Galaxy Note GT-N7000 General] gbb14:
look at this video, it demonstrates that the black clipping is present after a few seconds

00:05 (triangle with normal reflection) ; 00:08 (triangle with bad reflection , the black clipping shows)

what do you think?

http://www.youtube.com/watch?v=351nhXTYWxQ
[Galaxy Note GT-N7000 General] SappYoda:
That looks interesting indeed. Maybe someone can take a look at the init scripts and see how to fix this.

I'm tempted to yellow triangle my note to see if black clipping starts there.

Someone with yellow triangle can check if its true?
[Galaxy Note GT-N7000 General] theguy:
You don't need yellow triangle to check this. Anyone can do the following:

Turn your phone off

Plug it in

Wait for the battery icon to appear, for first few seconds it looks fine, after a few seconds it's the same image but with clipping around it.
[Galaxy Note GT-N7000 General] SappYoda:
Damn I tested it and its true.

It goes from no clipping perfect smooth gradient battery icon to ugly squares.

What does the firmware initialization do to screw this up??

This finally confirms that the issue is the software and not the screen itself.
[Galaxy Note GT-N7000 General] gbb14:
yes i know..it is software issue.

furthermore, i tried to raise the gamma on my laptop screen from 1.0 to 1.9 and guess what? i can see blocks of ugly black gradients just like on our notes.

This is definetly software issue, gamma is too high.

How hard is it to change the gamma on this device? I saw that galaxy s3 i9300 devs already have done such thing, with adjusting the gamma on cm10, they even put a "Cyanogenmod10 " scenario that helps color banding and make it look fenomenal.

Again, how hard is it to fix this gamma?
[Galaxy Note GT-N7000 General] CONTACTMC:
Very hard from my experience with this issue, Samsung wont aknowledge it, devs seem to ignore it, and the one respected dev "Supercurio" who said he knew how to fix it just up and closed his thread on the subject without a real explanation.
[Galaxy Note GT-N7000 General] rraaka:
the sad part about it is that even after so many months we are still trying to convince each other about it......

it has often crossed my mind that the solution to the brick bug is also something really really simple
[Galaxy Note GT-N7000 General] Infy_AsiX:
My thought is i've read some note users notice the higher brightness than the S3. Combining that fact with the largest complaint from the S3 and another large amoled the playstation vita is the black blotch marks on black on low brightness in darkness.

So the note is the only large amoled that doesn't suffer blotches. My guess since I don't own a note is the gamma was raised intentionally to remove the visibility of the spots. It seems only larger screens are affected starting with the galaxy nexus. It also seems that each larger device gets worse.

The black spots are a known trait of amoled because of these devices called mura. Samsung made the compromise by introducing black crush to hide it. This is unless the spots issue is worse on note than s3. From accounts i've read on here spots isn't really a complaint?

Sent from my Optimus 2X using Xparent Cyan Tapatalk 2
[Galaxy Note GT-N7000 General] pboesboes:
The note does have blotches. Gamma wouldn't change anything about the blotches.
[Galaxy Note GT-N7000 General] gbb14:
It's better to have a correctly gamma adjusted Note than seeing blotches, which apparently a few people complain about it, yet almost everyone has black crushes on their displays.

Brightness has nothing to do with Gamma, but a higher gamma ( almost ~ 1.8-1.9) on our Notes defines brighter colors thus brighter display.

I think supercurio worked on galaxy s3 black crushing problems. Am I right?
[Galaxy Note GT-N7000 General] TML1504:
since i use cm10 aokp my banding and gammatest is really superb!

i can see down to 1 without any problems, and better: the gamma stepping

between the numbers is now also right!

this solved the whole issue to me, hope it stays this way when hardwarecomposer

("butter" is up and running on JB and exynos4!!

another hint:

i changed the cm10 kernel to hydracore (lots of governors and OC/UV to 1.6)

and use the pegasus governor: now JB is ABSOLUTELY fluid.

overall recommendation:

try cm10, you wont be disappointed!
[Galaxy Note GT-N7000 General] annie42:
try AOKP JB, all black clipping will be gone!
[Galaxy Note GT-N7000 General] betoNL:
My friends, I just flashed Asylum JBCM10 today and believe me, it's fluid with or without HydraCore and no need for overclocking at all ...

Will run some "black clipping videos" to test it, later after restoring some backups

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[Galaxy Note GT-N7000 General] TML1504:
maybe on asylum a different kernel is used, CM10 kernel (which is used in CM10 obviously and also most AOKP builds) is NOT fluid due to ondemand governor!

with pegasus or interactive gov. you will notice a HUGE difference!

trust me guys, try it and judge for yourself!
[Galaxy Note GT-N7000 General] garytube:
thats bescause there are two sprite's (images).

one with a slight glow around and one

without

that get exchanged.

the first image is a empty battery, the second is a bettery with "green" in it.

so its not some sort of firmware boot-up..
[Galaxy Note GT-N7000 General] :
still hardware then :)

Please fix/workaround it with software lol.
[Galaxy Note GT-N7000 General] theguy:
Well what about the yellow triangle then?

Are there two sprites for that too?
[Galaxy Note GT-N7000 General] betoNL:
I used both HydraCore v2b STD and CM10 kernels on Asylum and both on the same standard Governor and scheduler.....

Very very fluid on both kernels...

But more importantly and more on topic:

No more black clipping !!!

Move on to CM10 people :D :D

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[Galaxy Note GT-N7000 General] letters_to_cleo:
what about the ram and memory leaks that plagues CM10? has that one been fixed already?

I wouldn't mind jumping to the gun in moving to CM10 if and if that issue is fixed already.
[Galaxy Note GT-N7000 General] betoNL:
So keep an eye on the Asylum CM10 thread...

I will post my "memory leak" workaround over there soon....;)

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[Galaxy Note GT-N7000 General] TML1504:
what improves the mem leak a bit is to disable the media scanner.

also, media scanner chews battery like crazy sometimes!

here's an app for that (root req.):

https://play.google.com/store/apps/details?id=com.addz.mediascanner

i enable media scanner once a while, but i have it disabled most of the time!

good for fluidity AND battery!

---------- Post added at 01:57 PM ---------- Previous post was at 01:51 PM ----------

@kernels:

i never got AOKP that fluid as with hydracore and pegasus gov!

@clipping:

as i told you! ;)

and more interessting: now we KNOW that the clipping, gamma etc. was NOT a hardware problem!

would be interesting what change in detail finally fixed it, and why samsung didn't release such a solution much

earlier!

anyway: i'm absolutely happy now with my note and AOKP JB. the mem leak isn't much of a problem for me,

i hardly notice it!

"a reboot a day keeps the doctor away" :D
[Galaxy Note GT-N7000 General] :
Black clipping is greatly reduced on Asylum cm10, its still there but faintly in some scenes of black nails clip.

I don't see how its not a hardware limitation only because you can remedy it with software tweaks... lol. Anyway issue is there, software or hardware whatever
[Galaxy Note GT-N7000 General] gbb14:
it is reduced because hydracore implemented : - Hardcore's MDNIE patch from speedmod k3-9 . it reduces the black clipping problem.

you're welcome :)

no more xda for me today, it's a great sunny day here ! :good:
[Galaxy Note GT-N7000 General] betoNL:
Asylum CM10 got within the rom tons of MDnie and screen tweaks to choose...nothing to do with Speedmod..

I get same good results with the standard CM10 kernel too...

BTW, what a beautiful banner !....

Who designed that ? :D

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[Galaxy Note GT-N7000 General] SappYoda:
I tested the rom and it does not fix the issue. Pixelization and banding are still visible
[Galaxy Note GT-N7000 General] betoNL:
That's a pitty for you..Not every Samsung device is the same...

Over here "black clipping" is greatly reduced with Asylum CM10, JellyCore AOKP, and LiquidSmooth roms...and with different kernels...

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[Galaxy Note GT-N7000 General] betoNL:
And now , with HydraCore v4 , The CM10 experience only got better..
[Galaxy Note GT-N7000 General] Formhault:
The Note I have was actually bought from Germany. I'm not the original buyer, but the guy who sold it to me (a friend, actually), got it from there (naturally, cause it was much cheaper there, at retail stores). He actually bought it in February. The battery is made in October 2011, though (*shakes fist angrily*).

I do have black clipping. It's most noticeable in movies - glad I don't watch them on my phone, I have a laptop for that.

But it is noticeable when setting a lock screen image... When you put your finger on the screen, the image goes dim (on TouchWiz, at least)... AND BLACK CLIPPING APPEARS !

That's why I can no longer use the Honeycomb wallpaper :( . It looks awful... at least on the lockscreen.

Anyway. Maybe there are perfect screens, but the case with the Note is pretty much like the case of the Galaxy Nexus - very rare perfect screens, but those are indeed, PERFECT ! Though, very, very rare :) .

And even with the newer batches of Galaxy Nexuses... from May 2012, for example... Some of them still exert dramatic purple tints, but the frequency of that happening in the May 2012 batch dropped a bit.

Anyway, Samsung still has to improve on this Super AMOLED technology. They didn't solve the banding and image retention issues with the Galaxy S3, too. If you walk into a showroom and take a look at the Galaxy S3 display units (which have been around for two months now), you'll see a lot of banding and image retention starting to emerge...

---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------

Not all of them are exactly the same... but the differences are very very minor. Chance of getting a (near-)perfect screen are pretty scarce. And if you got one or two, it doesn't mean 98 others are the same :) .

Trust me... I (sort of) worked at a Orange Store (at least for a month), and all the Galaxy S2s and Notes that were sold in that time frame (package unsealed, phone tested and setup etc.) had MAJOR banding and color tint... Good thing the buyers didn't notice (good thing for the store, not for them, lol).
[Galaxy Note GT-N7000 General] betoNL:
GTG....

Gonna post some things tomorrow :good:

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[Galaxy Note GT-N7000 General] betoNL:
Hello friend,

I didn't say there are LOTS of Notes with a perfect screen out there, I just wrote they do exist.

I know that my own device got much less issues that a bunch of devices out there..

I don't know how much Samsung have to improve its hardware, but there is certainly room for software improvement and definitely the urge for a better production quality control

Don't look only at the screen differences, but also to the fact the some devices can be easily overclocked/undervolted than others

Look also at other Samsung devices like the sgs1, when tons of users were complaining about GPS performance and lag issues while others didnt have any issues.

Etc etc.

To make a long story short, after testing and trying all kind of "tips" (see first post and read some pages of this thread) I am really really glad with the results I am getting from the duo Asylum CM10 + Hydracore v4, to the point that I will do my best to make a clear video showing those results..

Cheers