yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] RjYslf:
seems like sammy has no intention on changing these faulty displays...eh well atleast all KG3 don't suffer from yellow tint
[Galaxy S II General] sachilleas:
KG6 and yellow tint ???
[Galaxy S II General] EarlZ:
Bacon and Eggs?
[Galaxy S II General] plvt_florian:
some people have to much free time!!!!

see the title
[Galaxy S II General] slabster025:
mine, i found a dark vertical line that runs in the middle of the screen...i took a shot of it using my nexus s

i first noticed it while watching a video with black bg...

i thought it was just because of the conversion, but i changed my wallpaper to something brighter, and there it is...

it's really annoying when watching movies in a dark room

in daylight it's barely noticeable

i am now waiting for the replacement

///coming from a nexus phone, honestly, i did not fall in love with it :(

///hopefully i would, soon
[Galaxy S II General] EarlZ:
Cant see the image and I dont quite understand the issue xD
[Galaxy S II General] np231:
temporary burn in

I was using the link posted in the original post for the grey coloured webpage..

I just noticed that at 0brightness, I could see burn in of the top notification bar when I switched from landscape to portrait.. this disappears after few seconds and is not visible with other colours.. just with grey at low brightness..

is this normal or do I have a faulty display...
[Galaxy S II General] EarlZ:
You mean something that looks like a ghosting right? Seems to be a normal flaw on the SAMOLED+ , wasnt and issue with SAMOLED.
[Galaxy S II General] np231:
Yeah, you can see the battery indicator and other notification bar icons on the grey background when you switch orientation. This disappears after a minute but you can see it right away if you are using a grey background. So I am guessing this is normal then?
[Galaxy S II General] EarlZ:
Its normal in a sense that all SAMOLED+ based screens do that, the first gen SAMOLED does not have that ghosting though.
[Galaxy S II General] drreality:
i had it on sgs
[Galaxy S II General] djase:
kg6 ----> still horizontal lines bottom of screen :(
[Galaxy S II General] EarlZ:
Then your S1 had a bad screen, mine didnt and still does not until now :D
[Galaxy S II General] BarryH_GEG:
Attached...
[Galaxy S II General] BarryH_GEG:
There's a thread on this floating around. A couple of people had it but could see it with regular use and not having to set up special conditions like you described. It turned out to be an app conflict with the display drivers and went away when they hard reset their phone. I tried to replicate what you described and don't see it on my phone.
[Galaxy S II General] BarryH_GEG:
Is it your physical display that's showing the lines? If it is, software can't fix hardware. And the issue that was the start of this thread is hardware, not software. New kernels and ROMs seem to make it less obvious for some people by reducing the yellow push on the display but it can't correct the issue as it only effects a portion of the display and color temperature changes are all-or-nothing.
[Galaxy S II General] djase:
hardware issue i guess :confused:
[Galaxy S II General] DarkDvr:
On my SGS2 ordered from Korea (manufactured end of June) - no such problem.

Just checked with that gray website from OP on 25% and 0% brightness, nice and smooth, no yellow tint.

So I suggest try to return it for replacement, hopefully you get one of the newer units.
[Galaxy S II General] EarlZ:
@BarryH_GEG

Big thanks to you for filling the request, Its good the photos are labelled.

Could you possibly post pictures using a camera that shows the entire phone ? We would like to see your screen =)
[Galaxy S II General] BarryH_GEG:
Did you take pics of it? I can't see it on mine unless I take pics. If you did, post them. Quite a few people are waiting for confirmation of a change in the design or manufacturing process to send their phones in to have the screen replaced.

P.S. - The thread got a little off topic. The yellow/warm overall screen temperature issue isn't the same as the left side banding which may or may not show up as yellow.
[Galaxy S II General] RjYslf:
I can bet right now he has the yellow tint.
[Galaxy S II General] BarryH_GEG:
Yellow tint or left side banding? To date, we all have the left side banding while only some unknown percentage have warm/yellow screens.
[Galaxy S II General] nomnompie:
KG6 had the yellow tint at first but after lock/unlock it is gone as like the others.

So KG6 also has NO yellow tint.
[Galaxy S II General] diehard2222:
i call bs... no way its a software issue\ u damn lier.
[Galaxy S II General] EarlZ:
Thats how it works, when you flash to the 2.3.4 kernel you need to lock the screen and then unlock for the yellow tint to be gone, I dont know why it works like this but it does. No one can explain yet till the source codes are out.
[Galaxy S II General] RjYslf:
btw do you have to lock->unlock every time you start the phone or just one time and it's gone(with KG kernel ofc)

also yes all screens suffer from left side with darker colors

almost all suffer from yellow tint(the rest suffer from purple one)BUT WITH the new firmware this gets fixed so no longer an issue.
[Galaxy S II General] RjYslf:
EDIT:Please delete this.Sorry for double posting.I blame it on my net
[Galaxy S II General] EarlZ:
Just once from a reboot or a power off.
[Galaxy S II General] Jade Eyed Wolf:
I think the OP should edit the start of the thread to indicate in big, bold, capitalized, red letters, that new posters claiming to have the issue resolved, should SHUT UP!!!!... Unless of course they have PHOTOGRAPHIC EVIDENCE (not system screenshots!) to back up their claims of fixed/flawless screens...
[Galaxy S II General] BarryH_GEG:
Somehow the variance in

overall

screen temperature has become the discussion point, not the original left side banding. I think it has gotten some people confused.

There is nothing to support that "almost all" screens suffer from yellow tint and especially not "the rest suffer from purple one." Way back when this thread was started, there were conversations about whether the left side banding could be seen in everyday use. Less than a dozen people said they could see it without taking a pic of their phone. We also thought we were all looking at the same display and if you look at pics posted previously of apps, browser, etc., the majority do seem similar - cool/blue. When side-by-side pics started being posted you can see there are phones with a warm/yellow temperature and it makes sense that on those screens the left side banding could/would be seen in everyday use. But if "almost all" screens were warm/yellow, or even a high percentage of them, the participation level in this thread would have been a lot higher and more than a handful of people would have seen the issue in everyday use. There have been a a handful of posts about phones with extreme color temperatures (blue, yellow, pink, purple) but not enough to make it seem anything more than another QC issue.

Again, I thinks it's the last couple of pages talking about ROMs/kernels addressing the

overall

yellow tint issue that have people confused. And the person who posted about not seeing the banding may have a cool/blue screen which you can't see the issue on unless you take a pic.

And it's totally possible that Samsung and/or devs can change the

overall

color temperature of the display with software. But, if a screen is warm/yellow out of the box than it's a hardware issue and there's no evidence that it effects more than a minority of phones. For those with warm/yellow screens a s/w change would/could improve what they see in everyday use and minimize the appearance of the left side banding. But, to Jade Eye Wolf's point, there's still nothing to indicate that any design or manufacturing changes have improved the original discussion point of this thread -

left side banding

.
[Galaxy S II General] nomnompie:
Just to clarify.. I am not lying, as Earl will also vouch for.

I am in fact talking about the yellow LEFT SIDE, not the overall color temp of the whole screen. I was in as much disbelief as others at first because I still do not understand how software can fix this.. I was convinced it was glue.

I can attempt to reflash another kernel and take a video of the whole thing if I can get in the correct lighting so you can see the yellow going away for those who are really skeptical, or at least a picture comparison. Don't know if a video will work out well as all I have is an HTC hero to record with.

Now, I am not 100% certain if the screen is or is not ever so slightly darker on the left now or not, but I do know it is definitely not yellow anymore.

And yes, when the screen is locked/unlocked once, the yellow left side is gone even after reboot. Mine only came back when I flashed the KG6 CFROOT kernel over KG3 CFROOT.. Once the screen was locked and unlocked the yellow left side was gone.
[Galaxy S II General] EarlZ:
I do agree that the blue biased screen do good job of hiding the yellow left side banding from everyday use, looking at barrys pictures on 0% brightness on the ringtone menu actually not visible, on screens with good color balance (No bias towards red or blue, having great white levels ) the yellow banding is extremely visible on those menu's.

On red biased screens the yellow tint is the least of the concern, it cant show any real greys... the virtual keypad looks like its red and the white levels on it are pretty low/dimmer.

Samsung called me up yesterday that my other replacement is ready which is from a new manufactured batch ( or so they say ) and wants me to sit down with a technician and discuss the issue. Im not keeping my hopes up but its good to see sammy still giving me options. Is there anywhere on the box/packaging that I can check when was the exact manufacture date?

Yes I can vouch for that and requirement for locking is actually a big mystery to me.. I hope someone can explain the need for locking and unlocking for the fix to take into effect.
[Galaxy S II General] BarryH_GEG:
I still think that the overall screen temperature color adjustment of the ROM you're using is what's minimizing the banding. The banding is either there or not there - there haven't been pics where the banding itself (not the shading or color of it) have appeared any differently. And since it's apparently a hardware/manufacturing issue, there's no adjustment that can be made via color temperature that can only effect or be applied to a portion of the display. If that were the case you'd see variations in the LCD test which a couple of people on your ROM have posted pictures of showing it's uniform. But if it's diminished to the point you're happy with it, that's all that matters.

Is this a Samsung-owned retailer and/or service center or are you dealing with a third party Philippine distributor? Folks in Denmark have discussed this with the Samsung distributor there and didn't get very far.
[Galaxy S II General] BarryH_GEG:
Just to add, my phone was one of the first batch sold in the UK. So it kind of makes the discussions about newer batches being better than old somewhat mute. I think the temperature variances and QC issues are purely random. Although, there haven't been any recent fingerprint, suction cup circle, vertical/horizontal line posts so maybe they're starting to get the more obvious stuff right.
[Galaxy S II General] RjYslf:
thank god it didn't happen to me. I would've went nerdrage.

Also I do agree with you Barry. The yellow tint is pretty much acceptable. But those bolded above, HELL NO.
[Galaxy S II General] nomnompie:
Honestly, I would have to take pictures for myself and compare both with the yellow present and not present, but the overall color temp looks absolutely no different to me than it did before. My phone has always had somewhat reddish tinted grays at a certain brightness, and still does, whether the yellow is there or not, and it doesn't look cooler than it did either. My last phone (which I am still waiting for those b**tards to return to me) did look like it was slightly yellowish/greenish overall. I can not try KG on that phone unless it ever shows up in my mailbox again.

I hope to be able to do a vid today or tomorrow or pics or something, since nobody else has, so you guys can see what happens.

As far as is it darker on the left or not? I would say to my eyes, no, 98% of the time. The other 2% leaves room for if I actually take a pic and flip half of it. Who knows.:o
[Galaxy S II General] EarlZ:
Official Samsung Philippines distributor, Im actually surprised that they have such customer service. They will be leaving the phone with the same service center that made the technical report on my first and current phone, will be sitting down with the same technician as he saw the issue on both of my units w/o saying more than the left side is yellowish.

Im very certain its darker on the left side at the lowest possible brightness level, but with the brightness level turned up to 20% its absolutely not noticeable unless I intentionally look for it, at 0-10% ( 1 notch of brightness ) its slightly noticeable when viewing the inbox thread or when some loading or super user permission comes on the the screen ( 2 liners )
[Galaxy S II General] nomnompie:
If I stare at it, I think you are right. I however, am extremely content that it is not yellow anymore, I can deal with a smidge darker.

So it really is a mystery as to how they did it, and why locking/unlocking the screen is what initiates it. But I'm just glad it doesn't look like a turd slid down the left side of my screen anymore. :p
[Galaxy S II General] EarlZ:
Im also very happy that the yellow banding is gone, even if its a bit darker on the left side it does not bother my day to day usage that much anymore and its not visible on movies either.
[Galaxy S II General] StickyGeko:
heres my 3rd sgs2.... grey looks fine, but ive horid banding and is getting swapped tomorrow
[Galaxy S II General] BarryH_GEG:
If you're trying to show whether or not your phone has the left side banding, you need to take a pic. A screen shot shows what's on the display, not the display itself.

If you're talking about the 16bit vs 24bit gradient display, you can exchange your phone a million times. They all have it.

http://xdaforums.com/showthread.php?t=1075364

http://xdaforums.com/showthread.php?t=1187416
[Galaxy S II General] EarlZ:
A side note on that heavy banding, some people claim they dont see a slight hint of banding even when testing the said colors/shades/apps/game(impossible game), Im not sure if they are visually impaired or dont really understand what banding (16 vs 24) is.
[Galaxy S II General] Sugarkryptonite:
Don't know if it's been said before here in the last 190 pages (lol) but I'm pretty sure mine has no yellowing issues...can take pics if wanted. As for banding...it is pretty bad.

Or I'm just not good enough to see it...but if it's that subtle I don't think it would bother anyone :S

EDIT: Purchase date in Canada - July 23rd.
[Galaxy S II General] EarlZ:
Take pictures so we can see if there are any production changes.
[Galaxy S II General] nomnompie:
Sure go ahead and post pics I don't think anyone has posted pics of the canadian variant yet. Also check About Phone and see what firmware version you're on.
[Galaxy S II General] djase:
mine :

Pics 1 & 2 some horizontal lines at bottom of the screen only with some colors : grey,........
[Galaxy S II General] EarlZ:
Would you be able to take the photos a bit further back from the screen and possibly limit the image sto something like 1280x720. Thanks!
[Galaxy S II General] SAlmighty:
its really difficult to tell if there is a yellow on my screen, but after reading last few pages of this thread i noticed some dark horizontal line from bottom of the screen

the picture below shows the region i am talking about but it is not that thick, it is very thin. the brightness level in that region from line to bottom of screen is somewhat brighter than the the remaining top of the screen

this is visible in the dark but only in the notification area

when watching picture or movie the brightness looks same across screen

is this normal or software issue?

the 2nd picture that djase posted shows a horizontal line near the top, i think i have something similar but near bottom and not visible in daily use, only when notification area is pulled down
[Galaxy S II General] gaora:
hello guys,

got this phone few days ago, got the same problem but only when i look it at lowest brightness setting and only white background when i open my gmail. but gone when the brightness increase and when i see it with display tes it's gone..

my firmware is KG3
[Galaxy S II General] EarlZ:
I just got my 3rd replacement today, it barely has any visible yellow banding on the left side even at XXKF1, the only issue it has is MASSIVE white blotches on pure black image, its only visible though if Im in a zero light room so this flaw is still acceptable compared to the yellow banding.
[Galaxy S II General] anton79ru:
My galactic brothers and sisters,

In the absence of material cure to the yellow tint issue, and acknowledging that the problem has a partial psychological cause, I have tried a partial psychological solution.

1. I got rid of gray backgrounds in apps. In my case that was limited to changing the Go Contacts theme.

2. I purchased the "Auto Brightness" tool for wun amerikan dollah and set the minimum brightness to never go below 25%.

At the end of the day this placebo made me pretty much happier than I had been in the morning.

Try and see if it works for you.
[Galaxy S II General] EarlZ:
Is this the auto brightness app that your using?
[Galaxy S II General] anton79ru:
EarlZ, yep. Why, something wrong with it?
[Galaxy S II General] EarlZ:
I was also looking for something to limit the lowest possible brightness to 10% for a long time, not any relation with the yellow banding.

Aside from limiting the minimum that autobrightness can go, I wonder if it changes anything with how the actual autobrightness algorithm on the phone works.
[Galaxy S II General] DarkDvr:
djase

Please post bigger pictures, can't quite see the detail when looking from OUTER SPACE.
[Galaxy S II General] DarkDvr:
Here you go:

(click for bigger size, click in imageshack to see even bigger)

First: auto brightness (around 30%)

Rest: 0% brigthness

Last one: 25% brightness

I don't see any yellow tint to speak of, at all.
[Galaxy S II General] vrekeno:
Not sure if this is related, but I use the BedSide application as my night clock.

I have it scheduled to go black after 1 minute (so the phone is not turned off, it just goes to black so a simple touch displays the clock again).

So when my room is dark and so is the phone, I can see a LOT of white spots here and there, as if the application was actually not 100% transparent. I kind of have the impression that the spots I see is actually what's sitting on my main screen.

I'll try to take a pic and post it here.

Because of this "problem" I eventually turn the screen off.
[Galaxy S II General] anton79ru:
EarlZ, it also sets the ambient light level at which the device "thinks" it's indoors. Judging by the size of the app, I don't think it does anything else.
[Galaxy S II General] EarlZ:
Can you check if on your phone the app can set the min brigthness to 10% , does not seem to work on mine but if its 20% it works perfectly, same issue with power control plus widget though.. at 10% it cant set anything.
[Galaxy S II General] anton79ru:
It's past midnight here and I'm in total darkness, but it seems to work. After you've set the min brightness, try locking the screen and unlocking it again for the changes to take effect. When I changed from 25% to 10%, it did get darker.
[Galaxy S II General] EarlZ:
Im thinking its dropping down to 0% like what the other app does, can you try to compare 10% vs 0% ( if it has a an option to still drop it to 0% )
[Galaxy S II General] anton79ru:
Yeah, you're probably right.
[Galaxy S II General] EarlZ:
A friend of mine says it only registers as low as 15% brightness, thats still ok with me. Most brightness settings app on the S1 fail at 10%
[Galaxy S II General] Pfeffernuss:
It's yellow like crazy though.
[Galaxy S II General] EarlZ:
Some may not really perceive it as yellow but instead a darker left side which Im pretty sure a good majority ( by majority I really mean 51% to all units ) of units ARE affected unless someone shows proof of course.
[Galaxy S II General] Pfeffernuss:
Okay, correct, darker is a better description. So far I have not seen a single screen without this phenomenon. Doesn't matter too much, it still rocks :D
[Galaxy S II General] anton79ru:
Let's all concentrate on that last statement :) Set it as a home screen wallpaper or something!
[Galaxy S II General] gaora:
what i'm confuse samsung didn't seem to bother with this issue at all, the don't even try to make a statement about this CMIIW
[Galaxy S II General] anton79ru:
What's the use commenting if they don't have a cure? If they deny the issue, they get crucified for lying. If they acknowledge it, they get massive money back claims, both for real and imaginary reasons - and still get crucified for such a huge screw-up. If they quietly ignore it, they deal with individual replacements and returns, no matter how many - it's still better than any of the two previous scenarios.
[Galaxy S II General] DarkDvr:
No, it's not.

That's just the angle I took picture at and reflections on the glass.

Don't get me wrong - any LED tech, including SAMOLED isn't perfect - there will be brighter sides (where backlight is) and some color tinting. But getting stuck on it and demanding pure perfection of colors and lighting is ludicrous. Even military tech won't give you that fidelity.

And frankly, that amount of precision is not needed on a phone.
[Galaxy S II General] BarryH_GEG:
Wow, what a refreshing and realistic commentary.
[Galaxy S II General] Sandruz:
Backlight in samoled?
[Galaxy S II General] EarlZ:
SAMOLED does not have any back lighting, also with the S1 such issues never existed. Your expectation for a $700 phone is rock bottom but I can understand that.
[Galaxy S II General] BarryH_GEG:
There's a vast difference between SAMOLED (SGS1) and SAMOLED+ (SGS2) the latter pushing 50% more sub-pixels. Looking at the video comparison in the below link I don't know how former SGS1 owners can even compare the display capabilities of the two. Or find a Pentile display (SGS1) in any way acceptable. Just ask an Atrix owner.

http://www.engadget.com/2011/05/19/galaxy-s-ii-and-galaxy-s-screens-compared-at-the-subpixel-level/

http://www.phonearena.com/news/Smartphone-Displays---AMOLED-vs-LCD_id13824
[Galaxy S II General] EarlZ:
In anyone's view point 50% more subpixels can be vast, but how does this make the screen defects on th S2 which is not on the S1 an acceptable case?

Im guessing your not an S1 user so expectations are quite low on the SAMOLED and SAMOLED+ the real world difference between the 50% more subpixels vs the Pentil is the better edges on the text quality. I honestly was not wowed with the S2 screen coming from an S1 but yes the screen is great.

P.S.

I got my 3rd phone last monday, it actually has the best whites I've ever seen, but Im confused as to why my keypad looks awfully red but my whites are not red biased.

If i dont look at my 2nd phone alone the whites are absolutely phenomenal, like an ultra calibrated <Insert the best display tech with the best white levels here> but side by side on my 3rd phone, its white looks yellow and the Samsung Tech also saw the same. Im even more happy with this 3rd phone despite having other screen issues ( minimal )
[Galaxy S II General] BarryH_GEG:
I'm not defending the issues between the two. But they're clearly not the same execution of the technology. The change away from Pentile and the increased pixel density either made problems that were there on the SGS1 visible or introduced them.

I haven't owned a SGS1 but have seen the display side-by-side with mine and have also seen the Atrix display. I wouldn't own a Pentile display. I think the only reason it may be tolerable on the SGS1 is because of AMOLED's over amplification of colors and contrast.