Xperia T Color banding issue - Sony Xperia T, TL, TX, V

I see color banding issue on Xperia T's interface. Even when the brightness is maxed out, it is severely affected by the banding issue and there's also noticeable amount of noise while playing Video. My firmware ver. 9.1.a.1.141
I have included an image to test the banding issue. Just download the image and open it in full screen to your device.

I have noticed this too. Especially with certain colors on the Walkman app backgrounds. Guess theres nothing you can do about it. Its due to the quality of the lcd. Bit depth and all that. Also sometimes i notice backlight bleeding on the sides. Most of these issues could be overcome by an AMOLED screen I guess.

If you can find a way to enable "surface dithering" like in cyanogenmod this could help. Problem is it may be enabled already. Doesn't really bother me, who really cares about blacker blacks? as long as colours are good
Sent from my LT30p using Tapatalk 4 Beta

In CM10 I noticed narrower bands of color gradient but in CM10.1 it is like the stock one.

But it's irritating that while playing video it tries to show more shadow detail and then the video becomes more noisier at high brightness. Also the sharpness of playback isn't good.

Related

Nexus one screen: color and white shadow

Does anyone experience a "white shadow" problem on n1's screen?
when i read a document, i notice the margin area is not purely white, but there's "shadow" of text on the right
is this a amoled limitation of is it just me?
I will try to take photo if the explanation is not clear enough
another issue is that i've always found the n1's screen color to have a red hue
same for this, is it just me or do you have similar experiences?
Hey, no red hue but i do sometimes have a 'white shadow effect' which i notice looking at text, such as reading an email [not 100% sure if this is same problem as yours tho].
i was worried that this might be a problem with the screen but its just a fingerprint issue - all you need to do is wipe the screen!!
the finger prints left on the screen were what caused my white shadow, wipe the screen clean and all the text is evenly black.
magic
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
I have the odd ghost shadows when reading black text on a white background too.
boxmander said:
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
Click to expand...
Click to collapse
I see this too. I just chalked it up to a byproduct of AMOLED screens or something. Doesn't really bother me and I don't really notice it that much either.
boxmander said:
I have also seen this phenomenon, specifically in the web browser when there is a white background with back text. It doesn't happen all the time, but its fairly visable when it does. Perhaps this is a defective amoled screen issue? Or maybe just amoled screen artifacts.... not sure. Anyone else seen this?
Also this isn't a fingerprint issue, happens on perfectly clean screen.
Click to expand...
Click to collapse
hmm that's strange because i do sometimes have exactly the same problem and can see the problem disappear as i wipe the screen. From my limited knowledge about amoled screens it seems unlikely that the pixels could be experiencing some sort of 'come and go' problem such as this. If someone could put up a picture...
Well for the record this is a very minor issue, I like my N1 a lot, its hardly noticeable. However I am interested in investigating it, and attempting to take pictures of the effect was well, less then fruitful.
It turns out my digital camera doesn't take pictures up close that well, its actually pretty terrible. I was trying to get a screen shot app to try to capture it but the ones on the market are only for root users, and I haven't made the plunge into root, yet.
kiddyfurby said:
another issue is that i've always found the n1's screen color to have a red hue
same for this, is it just me or do you have similar experiences?
Click to expand...
Click to collapse
I have this problem and it's very off-putting.
Does anyone know if it's theoretically possible to calibrate the screen à la a computer monitor to reduce this reddish casting? In greyscale photos all shades have a very noticeable pink tone (not photos taken by the phone's camera).
I'm giving this thread a kick, because I also experience this 'problem' of having (faint but clearly visible) ghost lines or 'white shadow' when viewing small text/objects (Nexus One), especially noticeable in the browser. The weird thing is, it completely disappears when switching to landscape mode. Turning the brightness down worsens the phenomenon.
It is also reported at Google's Android support, sadly I can't report the link because of my newbie restrictions I also found one report of the Desire having this problem.
I would ask felow Nexus owners if they want to turn down their brightness and report if they also see this ghosting in portrait view (i.e. when viewing an article on nytimes.com fully zoomed out), so we can conclude if this is an insoluble AMOLED related issue or an actual screen defect of your phone (RMA/waranty-issue).
I have the text ghost image on white background. I thought it was software issue, but since it disappears in landscape view that might mean its a limitation of the pentile sub pixel layout.
I think this should explain it. It's not really the AMOLED, but how the "pixels" are actually laid out.
arstechnica.com/gadgets/news/2010/03/secrets-of-the-nexus-ones-screen-science-color-and-hacks.ars
I read that this issue doesn't occur in the old Dolphin browser. I don't have my phone with me right now. Can someone try it? I doubt it has anything to do with the pentile subpixel arrangement. I mean if the part of the screen is supposed to be white, the pixel should display white, not grey. Probably a software issue, IMO.
I just checked, shadows on both. It's a screen thing.
My bad. You weren't using the Dolphin HD browser, were you?
Thank for your replies I don't think it is the browser though, the same problem persists in Gmail, Adobe PDF Reader and Documents togo, I suggest you use one of these applications to look at small text on low brightness. It might be a little more noticeable in de browser, but looks like it isn't a pure software issue. Can you confirm this finding?
@voiceunebunu: yes, I've read that, but that article concentrates on text fuzziness etc. because of the PenTile arrangement, but does not mention this 'ghosting-like' effect.
Of course this isn't such a 'big deal': I would rather have my screen calibrated so it doesn't show up al reddish and get a better screen view in daylight, but hey, I knew about those problems before I bought the Nexus, but this one seams to be very sparsely documented on the internet.
This effect reminds me of the first, monochrome LCD-displays, which also had this problem (only 100x times worse), especially if they grew older.
Possible work around?
Hi everyone,
I've found a work around for this!
Cyanogen 6 has a feature called "Render effect" and basically, there are options to change what and how colours are displayed.
The last three "calibrated" seem to be for the Nexus specifically. I've used all three and the "calibrated" and "calibrated (cool)" are my favourite. Both slightly change the colour output.
There is a slight yellow tint over whites. For my screen the ghost lines are greatly reduced (it used to be visible with normal size text and exceptionally bad when zoomed out). Now its only slightly visible when zoomed out!
Hope that helps!

How to completely Disable Bravia Engine

Since I've got my Xperia T I have noticed a weird screen behavior I hadn't seen yet in any other android phone, whereas the device adjusts not just the backlighting, but also the contrast and the saturation based on the onscreen content.
I outright dislike it, as it's not seamless - you can actually see them slowly changing while you navigate your android screens, and it's not limited to photos and videos, as someone says. It's system-wide.
Just try closing all tabs in Chrome (remain with the dark chrome background icon), and look at the status bar icons: they are pale white, not bright white. Then open a browser tab and watch the address bar colors (sand, white, and black text), go through all of the shades of grey, before finally settling to the right colors. It's not just Chrome... every time your display shows a dark scene going brighter, you can see it happen.
Couldn't it stick to the max contrast and saturation setting, just like what we see in the photo album?
Alternatively, is there a way to disable the bravia engine and make my screen behave like all other screens?
Thank you for any answer
thenext1 said:
Since I've got my Xperia T I have noticed a weird screen behavior I hadn't seen yet in any other android phone, whereas the device adjusts not just the backlighting, but also the contrast and the saturation based on the onscreen content.
I outright dislike it, as it's not seamless - you can actually see them slowly changing while you navigate your android screens, and it's not limited to photos and videos, as someone says. It's system-wide.
Just try closing all tabs in Chrome (remain with the dark chrome background icon), and look at the status bar icons: they are pale white, not bright white. Then open a browser tab and watch the address bar colors (sand, white, and black text), go through all of the shades of grey, before finally settling to the right colors. It's not just Chrome... every time your display shows a dark scene going brighter, you can see it happen.
Couldn't it stick to the max contrast and saturation setting, just like what we see in the photo album?
Alternatively, is there a way to disable the bravia engine and make my screen behave like all other screens?
Thank you for any answer
Click to expand...
Click to collapse
I never noticed it before but you are right, i see the same effect.
Even if i disable Mobile Bravia Engine in settings... now as i know it a bit annoying.
remoh said:
I never noticed it before but you are right, i see the same effect.
Even if i disable Mobile Bravia Engine in settings... now as i know it a bit annoying.
Click to expand...
Click to collapse
Apparently that setting affects just the Bravia Engine behavior when watching pictures or videos.
I did notice that behavior on my XT screen but i don't think it's a bravia engine issue, i believe is sony stock roms problem. Actually i'm on recCoba's curiosity Rom, wich has the same acreen behavior, but i don't temember too well but i think when i was on jellybam rom the screen was behaving as a regular screen but as i said i can't say it for sure. Someone with a CM bases rom could tell if that happens too on those roms
It has already been discussed -
http://forum.xda-developers.com/showthread.php?t=2020892
Thank you for the heads up
Sent from my LT30p using xda app-developers app
If anyone cares, I made a quick video of the thing in action.
https://skydrive.live.com/redir?resid=75161877A71F52EC!296&authkey=!AOb1Cj-q3GGmAPM

[Q] 2 Questions:ColorBoost and pink spot in camera foto

Hi everyone!
I am a happy owner of AtrixHD,but two things I do not like:
1.Color boost technology of display.Such colors are acceptable for gaming,web browsing e.t.c.,but playing video and watching foto give very unreal colors,oversaturated,especialy pink(red).Definetly,there is no color adjustment in stock roms.Is there any chance to adjust colors(especially their saturation) within the settings of any custom rom or kernel which are discussed in development section?
2.In low light conditions(for example:small room with one window in cloudy day)my stock camera app is givng a spot with more pink color in the center of display,same spot appears on foto.All other camera apps from google play have the same spot.With normal light conditions everythig is ok.Does anyone has the same?Is it a hardware or software issue?
Thanks in advance for all replies,this i s a great forum.Sorry for my English,I am from Ukraine,Eastern Europe.
mrmate said:
Hi everyone!
I am a happy owner of AtrixHD,but two things I do not like:
1.Color boost technology of display.Such colors are acceptable for gaming,web browsing e.t.c.,but playing video and watching foto give very unreal colors,oversaturated,especialy pink(red).Definetly,there is no color adjustment in stock roms.Is there any chance to adjust colors(especially their saturation) within the settings of any custom rom or kernel which are discussed in development section?
2.In low light conditions(for example:small room with one window in cloudy day)my stock camera app is givng a spot with more pink color in the center of display,same spot appears on foto.All other camera apps from google play have the same spot.With normal light conditions everythig is ok.Does anyone has the same?Is it a hardware or software issue?
Thanks in advance for all replies,this i s a great forum.Sorry for my English,I am from Ukraine,Eastern Europe.
Click to expand...
Click to collapse
I know that ParanoidAndorid (not ours, OFFICIAL PA) uses custom color tweaks in their Nexus kernels. There might be a way to something similar for us, but I've never looked into it nor would I know where to start. Defy CM's were\are able to run color filters via software, not what you're looking for, but it does mean that its possible to tweak the display levels via software.
I've never had the pink spot issue, not in low light or good light. My low lights are just washy and kinda crappy, but no spots. HDR does much better in low light, sucks it doesn't work on 4.2 . HDR does look a bit oversaturated so you might not like it. Might be HW, might not be -- can't really say with any certainty.

Odd look and lack of brightness -- Vivid vs Natural display

My 10+ arrived yesterday and so far I've been impressed with two exceptions. As mentioned in other threads my finger sensor leaves a lot to be desired but my point of this thread was about an odd look my screen had. It was not bright and sharp like my 8+. There was a yellowish tint. I went into the 8+ to see if there were any differences in my display settings and I fixed the problem my by changing the screen mode on the 10+ from natural to vivid (Settings > Display > Screen Mode). The options were different on the 8+ but on the newer version it's one of the two, vivid or natural.
Just wanted to share that in case anyone else is having the same issue.
One question. My 10+ came with the screen protector and I've never had one. I assume they take away at least a small percentage of your brightness and clarity? I'm tempted to remove mine to see.
scmobileman said:
My 10+ arrived yesterday and so far I've been impressed with two exceptions. As mentioned in other threads my finger sensor leaves a lot to be desired but my point of this thread was about an odd look my screen had. It was not bright and sharp like my 8+. There was a yellowish tint. I went into the 8+ to see if there were any differences in my display settings and I fixed the problem my by changing the screen mode on the 10+ from natural to vivid (Settings > Display > Screen Mode). The options were different on the 8+ but on the newer version it's one of the two, vivid or natural.
Just wanted to share that in case anyone else is having the same issue.
One question. My 10+ came with the screen protector and I've never had one. I assume they take away at least a small percentage of your brightness and clarity? I'm tempted to remove mine to see.
Click to expand...
Click to collapse
Keep in mind that Natural should follow the sRGB color space. Most displays have default colors that are too cold/blue (high color temperature, and I know, it's counter intuitive but that's what they call it ). Relative to "colder screens", sRGB will seem warmer / more yellow. But it's also much more accurate as far as color representation goes, and should be closer to what you see with your eyes unfiltered by sunglasses. This assumes whatever image you're looking at is also taken with neutral colors and not over saturated.
I usually calibrate all my screens to have more accurate colors, at the expense of that "pop" you can get with AMOLED screens.
Sakete said:
Keep in mind that Natural should follow the sRGB color space. Most displays have default colors that are too cold/blue (high color temperature, and I know, it's counter intuitive but that's what they call it ). Relative to "colder screens", sRGB will seem warmer / more yellow. But it's also much more accurate as far as color representation goes, and should be closer to what you see with your eyes unfiltered by sunglasses. This assumes whatever image you're looking at is also taken with neutral colors and not over saturated.
I usually calibrate all my screens to have more accurate colors, at the expense of that "pop" you can get with AMOLED screens.
Click to expand...
Click to collapse
That "pop" is exactly what I'm looking for so would you suggest I stick with vivid? I understand what you're saying about the colors but it's not an area I'm real familiar with. I'm just not seeing a brightness on the level I prefer and yes I have it set as high as possible.
scmobileman said:
That "pop" is exactly what I'm looking for so would you suggest I stick with vivid? I understand what you're saying about the colors but it's not an area I'm real familiar with. I'm just not seeing a brightness on the level I prefer and yes I have it set as high as possible.
Click to expand...
Click to collapse
Yeah, you'll want to leave it on vivid if you want that "pop". I also know that when my current Google Pixel got the Pie update, the auto-brightness was a bit finicky at first, as it's an "intelligent" brightness and it takes a few days to learn your preferences for the right brightness based on the lighting conditions. So that might be the case with the S10 as well, and I should be picking up mine tomorrow so then I'll know more about how it works exactly.
Also I think I read somewhere that the S10 will only get very bright in direct sunlight if it's set to auto-brightness. You apparently can't set it to that level manually. So perhaps play around with that a bit.
Any news on this? I just picked up my s10 plus and the screen has a yellow tint and seems less bright compared to my note 8...not sure if I just ask for a replacement. Thanks!
I always run mine on Vivid and WQHD and as expected the S10 is spectacular
Sent from my SM-G975F using Tapatalk
im surprised there isnt adaptive display mode like on the previous models this really made different colours pop. mine seems to have a bit of an orange tint
I also found it too yellow.. Go at the advanced settings and reduce the green close to the minimum and the red just a little bit. It will look white again..
Because of the sun light some people find yellowish colours more natural..
Yeah the whites don't look good on the s10 compared to my note 8
Just compared mine with different demo models and they all seem a bit more 'natural'. No need to swap it for a different one, allthough they all are a bit different...one more leaning towards blue white and the other to yellowish white.
Well coming from pixel 3, to me, Colors looks natural. S10 screen is crisp and clear. Nobody can best sammy when it comes to screens. I am using natural mode. Vivid mode is having too much pop.
Sent from my SM-G973F using Tapatalk
scmobileman said:
My 10+ arrived yesterday and so far I've been impressed with two exceptions. As mentioned in other threads my finger sensor leaves a lot to be desired but my point of this thread was about an odd look my screen had. It was not bright and sharp like my 8+. There was a yellowish tint. I went into the 8+ to see if there were any differences in my display settings and I fixed the problem my by changing the screen mode on the 10+ from natural to vivid (Settings > Display > Screen Mode). The options were different on the 8+ but on the newer version it's one of the two, vivid or natural.
Just wanted to share that in case anyone else is having the same issue.
One question. My 10+ came with the screen protector and I've never had one. I assume they take away at least a small percentage of your brightness and clarity? I'm tempted to remove mine to see.
Click to expand...
Click to collapse
So even I had the same thoughts when I got hands on my S10+. Was worried the screen had some issues and hence went to the Samsung store and compared with the display phones - there was no difference between what I had and the display ones. However, when I compared with my S8+ I found that S8+ display was more blue-ish than S10+. The response from Samsung was that by default Samsung had toned down the blue light in the S10 screens for improved readability.
However, I feel the colors had lesser contrast in my S10+ screen compared to my S8+ and that is a bummer - at least for me!
dragster88 said:
So even I had the same thoughts when I got hands on my S10+. Was worried the screen had some issues and hence went to the Samsung store and compared with the display phones - there was no difference between what I had and the display ones. However, when I compared with my S8+ I found that S8+ display was more blue-ish than S10+. The response from Samsung was that by default Samsung had toned down the blue light in the S10 screens for improved readability.
However, I feel the colors had lesser contrast in my S10+ screen compared to my S8+ and that is a bummer - at least for me!
Click to expand...
Click to collapse
I have found that applying "blue light filter" and setting it's effect to minimum fixes the color saturation and reverses the washed out look on images. Another way is to go into visibility enhancements -> color adjustment -> then either apply a filter there like "Tritan" or "personalize color" and follow the steps. To me I cannot see any difference between the above steps or just simply applying "blue light filter" set to minimum. To me both look to correct the color saturation about the same.
I hope this helps you!
Hopefully they fix this soon!
Cheers ?
-Dorian
Hi guys. I think you might be encountering the display saturation bug.
The Galaxy S10 (USA Unlocked version in my case) has a peculiar bug in the display. When a photo is fully opened in an app such as Gallery, the photo's saturation becomes muted and cold (even with the display set to vivid and warm). It's very apparent with skin tones. I first noticed this when comparing identical photos between my S10 and S9.
If you hit the app switcher, the minimized card displays the photo with the correct saturation. Maximizing the app, causes the image to immediately turn washed out and Muted. This is appears to be a system wide bug, as it shows up in Gallery, Instagram and other places. I could not get this to show up with a screen recorder, since it's the display changing the image. I recorded it with my camera, but it appears very subtle. In person it is very obvious. I don't know how many are affected by this bug, but I'm seeing others talk about it on forums. Appears to affect all galaxy S10 models.
For a temporary fix, you can enable the blue light filter and set it to the MINIMUM setting. This will display photos in the Gallery and other apps with the correct color saturation. Hopefully Samsung will address this with a software update!
---------- Post added at 04:53 PM ---------- Previous post was at 04:50 PM ----------
https://youtu.be/uUmgd-QrOuA
Supraguy88 said:
Hi guys. I think you might be encountering the display saturation bug.
The Galaxy S10 (USA Unlocked version in my case) has a peculiar bug in the display. When a photo is fully opened in an app such as Gallery, the photo's saturation becomes muted and cold (even with the display set to vivid and warm). It's very apparent with skin tones. I first noticed this when comparing identical photos between my S10 and S9.
If you hit the app switcher, the minimized card displays the photo with the correct saturation. Maximizing the app, causes the image to immediately turn washed out and Muted. This is appears to be a system wide bug, as it shows up in Gallery, Instagram and other places. I could not get this to show up with a screen recorder, since it's the display changing the image. I recorded it with my camera, but it appears very subtle. In person it is very obvious. I don't know how many are affected by this bug, but I'm seeing others talk about it on forums. Appears to affect all galaxy S10 models.
For a temporary fix, you can enable the blue light filter and set it to the MINIMUM setting. This will display photos in the Gallery and other apps with the correct color saturation. Hopefully Samsung will address this with a software update!
Click to expand...
Click to collapse

Black crush and color blending issue

Hello All
Lately iam getting a black crush issue on my note 8(exynos) as shown in the image (downloaded from google but same issue)
Iam on the latest may update, tried the screen balance app which helped many pixel 2 users to rectify the same issue.
Kindly help.
Google - "black crush" screen issue refers to various dark shades displayed inaccurately. As a result, dark sections of videos or images come up with blocks or black, pixelated, or grainy, which is quite the opposite of what you'd expect from a top-notch, high-resolution display. The visuals rendered with this "black crush" issue are with significantly less detail, like a file that's lost most of its quality after heavy compression.
Simply put, rather than showing details, screens affected by this issue will show blocks of pixelated or black images in dark sections
I am runnng the latest update on my N950N and I don't have any black crush or color bleeding on my display...
I changed the versions from pie to oreo to custom roms, it still is with black crush and color banding.
Google says it is due to software color calibration, issue is it happens when iam below below ~40%battery in dark environment.
Screen balance app doesn't help , unfortunately.
Any help would be greatly appreciated.
thanksss
Hi,
I have the same problem, do you solved? I think is a hardware problem.
Same issue on my SASSUNG NOTE 8 Exynos verison SM-N950F since March 2019 update...and stil not fixed...
Is your fixed now?

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