yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Of course.

Fluorescent

White balance strength 40%

Contrast 100%

Brightness 100%

You can reduce the white balance strength down to 20-25% to retain the blacks, but you will also have a little bit of black crush.

---------- Post added at 06:48 PM ---------- Previous post was at 06:44 PM ----------

Correct me if I'm wrong, but as far as I understand you are saying that your device is a little bit more problematic with colour reproduction etc than rest of us?

---------- Post added at 06:58 PM ---------- Previous post was at 06:48 PM ----------

I do not know if anyone can confirm, but with with cinema mode, I have less black crushing than with the adaptive.
[Samsung Galaxy S9+ Questions & Answers] Rushabh65:
I find 30% white balance along with 4% rgb strength the perfect sweet spot for me while using Screen balance. The blacks are still there along with significantly reduced screen crush although it is still there.

Also Adaptive and Cinema mode didn't make a noticeable difference for me.
[Samsung Galaxy S9+ Questions & Answers] Ollieden:
Just checked for software update manually and ARD4 was there. Gonna download it aleast it will sort out my loss of sound during calls. Hopefully they will fix this issue also as they are pumping out fixes for other things.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Just installed it. Nothing change in terms of black crush.
[Samsung Galaxy S9+ Questions & Answers] Ollieden:
Same I hope Samsung sort this out soon. If the screen balance app can help im sure Samsung can also.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
I believe that too. If Samsung add a dithering filter like Apple's and do some tweaks with updates, the problem will be solved.

I have the regular S9, not the S9+
[Samsung Galaxy S9+ Questions & Answers] Galaxo60:
I did the test in vertical just now and is still there, but less noticeable because of the size of the video.

So nothing has changed with the update.

;)
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
I still don't have any problem with HDR content either way. Low or high brightness before or after the update. I have checked thoroughly in dark room bu also in well lighted.

I have problem only with SDR.

---------- Post added at 09:36 PM ---------- Previous post was at 09:13 PM ----------

Also I think that some people may confuse banding with black crush. Two different thinks. Banding is an inherited problem with OLED and AMOLED displays, and only Apple with perfect calibration managed to minimize it.
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
Likewise. HDR video content is fine for me.
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
https://drive.google.com/file/d/1meVNHys92dqLn2adZMM8_OKudegM9lyO/view?usp=drivesdk

Not my video so take no credit, however found it on the web. Download and try for yourself.

This video perfectly demonstrates how HDR is unaffected by the issue and SDR is affected. Notably in the darker sequences. Crushing occurs only in the SDR and disappears in the HDR.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Which tells me that it is not a hardware issue.

---------- Post added at 10:42 PM ---------- Previous post was at 10:32 PM ----------

Can you also confirm that you don't have any problem with black crushing while gaming?
[Samsung Galaxy S9+ Questions & Answers] tekzonept:
I also have black crush on the S9+. Hope Im wrong but unfortunately I believe it's an hardware issue, because, if I take a screenshot with this problem and send it to my wifes phone (htc 10) there's no black crush on her phone which makes me think that the defect is not in the data sent to the screen but in the way the screen handles that data and the screen being a physical component I can't see how it can be fixed with a software update. Samsung can disguise the problem but not solve it, but like i said before, hope I'm wrong.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
For hardware to work properly, the correct calibrations though software must be done. So, bad software can cause many dysfunction to hardware.

It can be fixed through software. The problem is not in the data but how the software works with the screen to replicate the correct result.

If hardware was the case, the HDR content should has to have problems but there isn't any.

With all that being said, you will never see the same results in comparison with your wife's HTC 10. Different screen technology and calibration.

A Windows update on my pc, was just enough to cause me serious colour problems.
[Samsung Galaxy S9+ Questions & Answers] militair007:
check my old links now works
[Samsung Galaxy S9+ Questions & Answers] 10feethigher:
No difference unfortunately.
[Samsung Galaxy S9+ Questions & Answers] th.android:
Didn't work for me.
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
I've had further communication from Samsung today stating that they have escalated this to their highest level (this in response to me emailing them links to the various topics on the web about the issue). They've assigned me a reference number and have asked me to provide a suitable date and time for a callback. Not sure what they will want to discuss but its good that this has been escalated.
[Samsung Galaxy S9+ Questions & Answers] 10feethigher:
That's great thanks Chris_c81. Hope it is a software fix and not hardware. I wonder if it only affects the preorder batch of phones or if it is widespread to all s9+?
[Samsung Galaxy S9+ Questions & Answers] pieces of cake:
Have the same issue. This is some bull****.
[Samsung Galaxy S9+ Questions & Answers] leoaries1986:
Do you request change the new phone from SAMSUNG?

I bought new S9+ some days ago and I saw this issue on my phone last night.

It's terrible. So sad T_T

I think I will come to SAMSUNG service center to check more.
[Samsung Galaxy S9+ Questions & Answers] th.android:
Also, it could be affecting only the Exynos version. Would be interesting to know if someone from US with Snapdragon is having the same issue.

I'm also communicating with Samsung Support via Twitter and they reply daily saying that they're investigating the issue. I've provided them with links here and other forums where the issue is being discussed.

---------- Post added at 09:26 AM ---------- Previous post was at 09:06 AM ----------

Seems Snapdragons are affected too.

https://us.community.samsung.com/t5...-Crush-and-Gradient-Banding-Issues/m-p/294889
[Samsung Galaxy S9+ Questions & Answers] IndDoc:
I seem to have a different problem than OP's. My screen is caliberated so that it is too yellow. Next to a note 8, my screen looks very warm and yellowish. I tried changing all values, screen modes etc etc. No effect. Anyone else have this problem?
[Samsung Galaxy S9+ Questions & Answers] mikapharm:
if this problem doesn't exist in regular s9 model so this is a hardware problem or it can be fixed by software update ?

It look like all plus models have this problem its so obvious in the infinity wallpaper
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
I don't agree that its a hardware problem. I personally believe its software and will be fixed with an update.
[Samsung Galaxy S9+ Questions & Answers] mikapharm:
I really hope so
[Samsung Galaxy S9+ Questions & Answers] Galaxo60:
Is just a calibration problem, because otherwise, it would be noticeable in any kind of brightness.

For me the issue only appears when the screen brightness is low and you have really dark scenes on it.

;)
[Samsung Galaxy S9+ Questions & Answers] th.android:
I hope it's just calibration issue.

The issue however doesn't only appear in low brightness. It's always there but you can't really tell if the lighting environment is bright because the screen naturally gets a lot of glare that masks those details completely.

I have tried to crank up the brightness of the display to maximum in a dark room and the problem it's still there for me. A bit less pronounced but still unacceptable. On top of that, high display brightness in a low light environment also produces horrible banding and artifacts in movies.
[Samsung Galaxy S9+ Questions & Answers] Toss3:
It should be warm and yellowish (calibrated to 6500K). :)
[Samsung Galaxy S9+ Questions & Answers] Dpk1:
I'm glad I didn't prebook the 256gb S9+ (exynos) which I was planning to! I had no such noticeable black crush on my S7 edge but had it on the S8+ (very much pronounced). I waited for samsung to fix it through updates but they didn't. Then I sold the S8+ and bought Note8 (exynos dual) which I'm using currently and luckily it doesn't have this issue! SAMOLED screens are the best in business today but it's a shame they still have this age old black crush issue even in the latest Samsung flagship(s)!

To sum up I think this is a display caliberation issue (factory level) and I'm not sure if it can be fixed with a software update! Hopefully they will do something about it (perhaps replacement with new batch of S9+s with properly calibrated displays).
[Samsung Galaxy S9+ Questions & Answers] th.android:
Why would the Plus model be calibrated differently from the regular size though? It's the same panel in both devices except the size. Are they trying to conserve more battery on the big one by cheating and turning off additional pixels with black details hoping for people not to notice?
[Samsung Galaxy S9+ Questions & Answers] 10feethigher:
^Agree. Really weird. I see many tech news websites are reporting on the S9 touchscreen dead spot issues, would be great if they also wrote about this issue. I've sent some info to various outlets, would appreciate others to do the same so we can bring more attention to this!
[Samsung Galaxy S9+ Questions & Answers] trenzterra:
Is there a sample free video where this issue can be reproduced? I am not having any such issues on s9+ exynos at minimum brightness in a dark room..
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
You don't need a video. Just set one of the Infinity wallpapers. It's immediately noticeable upper right corner where the gradient goes from colour to black. It appears all blocky.
[Samsung Galaxy S9+ Questions & Answers] Galaxo60:
Yes, I'm seeing banding, still I don't know the difference between those 2, I just call it Black Crush.

:silly:
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
This is colour banding

https://en.m.wikipedia.org/wiki/Colour_banding?wprov=sfla1

And this is black crush

https://blog.solidsignal.com/tutorials/crushed-blacks-bad/
[Samsung Galaxy S9+ Questions & Answers] Toss3:
How on earth does that video prove anything? This thread is starting to seriously bug me as people with no understanding of calibration are claiming it doesn't affect HDR without any proof. I already posted videos comparing the two and if you don't see it in those you don't suffer from it. HDR cannot solve the issue for pete's sake as the device isn't capable of displaying 10 bit colors. I already spoke to an engineer over at Samsung who confirmed it is a hardware issue. There are also photos in the thread about the issue over at Androidcentral of devices that don't suffer from it.

Unless you made that video and can prove exactly which color ranges are affected it isn't evidence of anything.

---------- Post added at 10:22 AM ---------- Previous post was at 10:19 AM ----------

You need access to the display itself for it to be calibrated correctly - you cannot just do calibrate a randomized sample and apply it to every phone out there. The red tint was an issue that affected ALL S8s which meant it could be solved by a simple software update. Just check the HDR video I uploaded - can you see all shades of gray? If not your device suffers from black crush - if the shades blend together you suffer from banding.
[Samsung Galaxy S9+ Questions & Answers] Galaxo60:
Well, the banding produces certain level of black crush.

Guess I'm having both.

:laugh:
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
And almost all S9 and S9+ suffer from black crush.

The shades are not blend together. I insist that the problem can be almost fixed through software. HDR doesn't have have any problem in my device. There is something wrong with the algorith.

Just to be exact, my display show as the same exactly things like Errica Griffin's in this video from 27:38

https://youtu.be/YVk8bc-TV3Y

By the way, in this video in full brightness what is the darkest that you are able to see? I can see untill five.

https://youtu.be/fv6T7aHsd54

---------- Post added at 09:43 AM ---------- Previous post was at 09:35 AM ----------

Oh and i will say it again. An update on Windows 10 caused me colour related problems. And black crushing was one of them. Problem fixed through messing around inside Windows, not with any third party program. I didn't need to tweak even my graphics card driver.

I am a computer technician, so I know what I'm talking about.
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
I'll admit I'm no expert on displays or calibration. What the video demonstrates to me at any rate, is that black crush does not occur on HDR video (or if it does, its significantly reduced to be near invisible to the untrained eye) and that it does occur on SDR video.

I don't know what else you want me to say. I can watch HDR content WITHOUT the problem. I can watch SDR content WITH the problem.

You seem to want everyone and anyone who takes part in this discussion to have cameras set up aimed at their display, just to satisfy your curiosity. Not everyone is going to go to the lengths you are to investigate this issue. You can't be upset with others just because they don't share your level of expertise.

With regards your test videos, I couldn't notice a difference between the two videos. I could see the three lines of text and I could see a gradient *shrugs* you'll determine therefore, my display is ok. I know it isn't, as I have the black crush when watching videos...
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Excactly. The fact that the phone handles way better HDR content, shows that trough software the problem can be fixed. With that being said, we know that AMOLED technology has it's own limitations. To fight those limitations, Apple added dithering. That has a minimal cost to blacks that most of the users can't see.

I am not here to fight with you Toss3.
[Samsung Galaxy S9+ Questions & Answers] Toss3:
The problem is reduced with HDR because of color conversion; you'd need to manually set the colours to match exactly otherwise the HDR image is going to be a bit brighter leading to less black crush. If you watch an SDR (rec.709) video clip in HDR mode it's going to get even darker, which is going to make the problem worse. This is how the video enhancer works, except in reverse (expands the colours to a wider gamut).

If HDR actually fixed the problem the device wouldn't have any issues taking an SDR image, converting it to rec.2020, and then displaying it on the device. Alas this doesn't work (slight reduction in black crush because of the colour conversion), and it looks pretty much exactly the same. This just means that HDR doesn't affect the calibration, meaning the device converts the HDR image to the same calibrated colours you'd normally get except with slight differences, again, due to colour conversion.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Just a filter like Apple is using, will solve the matter. It is not a hardware defect. Don't ask me, ask Errica Griffin who is an expert on calibration and she thinks about it. By the way, her screen looks excactly like mine.
[Samsung Galaxy S9+ Questions & Answers] Chris_c81:
I can't answer you on the same technical level. Two things though. The video I linked above came from this website and has this description:

Secondly, a huge proportion of the users here experiencing this problem will not care for the technicalities and have untrained eyes. If a software fix of some kind can be applied, even if by your definition it is not fixing the problem head on, but is masking it enough that your everyday user will be happy, then that pleases the masses.
[Samsung Galaxy S9+ Questions & Answers] s0nixx:
I got my money back.. :) Second S9+ same problems. Black crush, oleophobic coating is messed up bad. Wish you guys good luck and hoping that they will fix this eventually.

Right now waiting for twilight P20 Pro :) did a comparison and in my eyes it's better than Samsung. At least doesn't have these issues.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Also for P20 Pro there are reports for black crush. What problems you had with the olephobic coating?
[Samsung Galaxy S9+ Questions & Answers] ConnyHedgehog:
Look at Erica Griffins video where she compares the S9+ with the P20 Pro. The P20 Pro handles dark scenes much better than the S9+ :)
[Samsung Galaxy S9+ Questions & Answers] s0nixx:
Basically this https://www.youtube.com/watch?v=qtDf53wcgmc not my video but had exact same issue in those exact places. For this price this is just horrible.

Don't know about black crush on p20 pro I myself compared mine to huawei in the dark watching same video and it had no issues whatsoever.
[Samsung Galaxy S9+ Questions & Answers] SwagGoat:
Also going back to my Pixel 2 XL. Kind of sad to let it go...
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
It's a bit of a downgrade to go to P20 pro but still it's an awesome phone.

It does look like there isn't any olephobic coating at all:eek:

How is this possible???
[Samsung Galaxy S9+ Questions & Answers] s0nixx:
Nothing to choose from really xD It's either P20 Pro or S9+ since I consider them being the best android phones right now.
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Yet, if you want the best display, at least with the best calibration, you should go and buy Iphone X :D

---------- Post added at 04:10 PM ---------- Previous post was at 04:08 PM ----------

And there is a Tweet from Errica Griffin about the issue. She is right at the most.

https://mobile.twitter.com/iam_erica/status/979599335850561536
[Samsung Galaxy S9+ Questions & Answers] ashura6666:
Did anyone try to cast the phone to a monitor or tv did the screen then show any problems then. Just curious. Because today I called Samsung India and through the smart tutor app they could see my screen on their monitor through the internet and I could show them the problem of Blacks crushing and the pixelation. Hence just curious to know Whether mirroring could reproduce the same issue.
[Samsung Galaxy S9+ Questions & Answers] Galaxo60:
I had both, gave up the P20 Pro 2 weeks ago because the S9+ is a better phone overall.

I can tell you that the P20 Pro also suffers from banding and black crush, and moreover, screen gets completely grainy at low brightness and is more much horrible that banding in the S9+; this is a picture I took of a YouTube video, is really hard to capture in camera, but I did my best. If you zoom, you can see all those little grainy blue points in the screen:

https://photos.app.goo.gl/yXfV7FFnxhtbySBG9

Also video is plain garbage, not useful at all.

Camera for pictures is somehow in the same level, and Night Mode, even when is a nice gimmick, has a lot of cons.

I wrote a comparison of more than 20 pages (in other language) and I can surely say that the P20 Pro has more downsides than benefits compared to the S9+.

;)
[Samsung Galaxy S9+ Questions & Answers] Neo_Sk8eR:
I just came to this from the p20 pro

has it's own list of issues.

Bluetooth performance is an absolute joke, touch screen deadzone very noticeable if you use citrix/team viewer a lot, speakers aren't as good and some very very odd software choices.

Camera CAN be great, but is very inconsistent. Definitely not a point and shoot.
[Samsung Galaxy S9+ Questions & Answers] septum12:
Hi everyone,

I've been monitoring this thread for a few weeks and would like to say that the G965USQU2ARDA build completely fixed the black crush on my S9+ (USA Unlocked). I installed it through recovery. Looking at all the different test images shown in this thread, the Black Panther trailer, etc., and it appears to be completely gone, as well as the blotchy almost-green look to some of the black areas. I noticed it especially in the opening scene of Doctor Strange on Netflix, and after installing the update the scene was much more watchable on lower brightness levels. I'm a happy customer now - seems to be totally fixed for me.
[Samsung Galaxy S9+ Questions & Answers] Ollieden:
G965USQU2ARDA is the USA version anyone know what the UK version is as I've downloaded the latest ARD4 and no improvement?
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Still we have road to cover. Don't worry though. Everything shows that this problem can be partially fixed with a software update. Every s9 or s9+ that I have inspected, has this issue. It is not that the hardware (screen) is broken. Just hardware limitation that needs an update to become better. Not perfect.

If it was a hardware defect, not even Screen Balance could help.
[Samsung Galaxy S9+ Questions & Answers] Xda-nuf:
ARD4 comes with april's security patch, G965USQU2ARDA comes with May's security patch, so this could very well and hopefully be true.
[Samsung Galaxy S9+ Questions & Answers] ConnyHedgehog:
I'm not completely sure. If you look at the thread at androidcentral you can see a huge difference between some devices. Some S9+ look bad, some look completely horrible and some don't have the issue at all.
[Samsung Galaxy S9+ Questions & Answers] Ollieden:
That's what I was saying if screen balance app can help im guessing it's software related. Maybe the ARDA has helped it fingers crossed. More annoying as had the s8 plus which was perfect and traded that in for the s9 plus and had to pay extra. I'm surprised if they did fix it in with a security update as all the other issues like muted calls and wallpaper improvement was a separate update. Would you normally get a big fix with a security update?

---------- Post added at 08:49 AM ---------- Previous post was at 08:43 AM ----------

Have you got the link ?
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
Variations between devices always exist. If that wasn't the case, then there wouldn't be necessary for manufacturers to release updates to fix problems. Problems that not all owners are facing.

And it is a misinformation that only S9+ facing the black crush problem. I have the regular S9 and facing the same problem. And every S9 and S9+ that I have laid my hands on, has the excact same problem.
[Samsung Galaxy S9+ Questions & Answers] ConnyHedgehog:
Sorry, forgot to link to the thread, here you go :)

https://forums.androidcentral.com/s...plus-black-crush-gradient-banding-issues.html

Yeah definitely there are always variations betweed devices. But there are huge variations this time and if they try to do a "one calibration fits all" they will fail because that might help some of the screens, but some (those that don't have the problem) will probably get worse. So they need to identify which phones have the problem and apply a fix for them.

If you have time, please read through the thread I linked above. Not all S9/S9+ have this problem :)
[Samsung Galaxy S9+ Questions & Answers] Kostasl88:
I am not saying that all of them have the issue. But everyone that I have seen, has the problem. I disagree that they need to identify each device. If the screens that having the black crush do not have a hardware defect, an update will apply the correct calibration to them and on the good ones again, without affecting them. It is the same hardware, so there will not be a problem. Variations may exist. Then we will see which displays are defective.
[Samsung Galaxy S9+ Questions & Answers] ConnyHedgehog:
I get what you´re saying but I don't think it's that easy. But I guess we have to see if they fix it :)