Develop Bugs

Gradient Banding on my G2 - need help!

A while back I opened my phone to fix a few other things which was actually successful (power button, touch digitizer, in ear speaker volume).
But when I reassembled my phone, I powered it on and I noticed that the colors were dull on my lcd, with noticable banding in gradients that were black grey white. This occurs in everything that appears on my screen including videos; even pictures that I take on the phones camera after they are tranferred onto my mac - still have banding!
So I thought that it must be something to do with the phones lcd screen? And its not able to transition from gradient to gradient in objects, which is causing the banding.
Anyone ever heard of this being a problem? Any solutions? Even ideas that can help me figure out how this whole thing works.
Appreciate it.
The first two pics, you can see how they have a blue tone to them, and that's the same thing I see on my homescreen/videos.
The second pic is a normal gradient. If this were to be viewed on my phone, in the white/lighter areas of the gradient there would be pink/blue banding. Only the black to white gradient shows the banding, but other colors are still quite vivid such as reds, oranges, yellows, even green. But I do know that it has something to do with light and shading with respect to lcd coloring.
By the way, screenshots of my home screen or any other screen using ShootMe are normal without banding.
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bump...ahhhhhh

Guess taking it apart didn't work as well as you thought
Sent from my T-Mobile G2 using XDA Premium App

I get banding in wallpapers with gradients on my G2, regardless of color. Although it's much easier to see on black/white/gray type gradients. I figure it's just a limitation of the LCD to accurately reproduce said gradients because if I view the same images on my PC monitor the banding isn't present.

dhilberg said:
I get banding in wallpapers with gradients on my G2, regardless of color. Although it's much easier to see on black/white/gray type gradients. I figure it's just a limitation of the LCD to accurately reproduce said gradients because if I view the same images on my PC monitor the banding isn't present.
Click to expand...
Click to collapse
Hmm yeah, I get it in everything. Themes, videos, pictures, etc. It seems like there is a color limitation, its annoying.

TheToiletSpaula said:
Hmm yeah, I get it in everything. Themes, videos, pictures, etc. It seems like there is a color limitation, its annoying.
Click to expand...
Click to collapse
Did a bunch of Googling, came up with this:
http://www.reddit.com/r/Android/com...rs/?utm_source=twitterfeed&utm_medium=twitter
Long story short, use the Wallpaper Set and Save app from the Market to apply your wallpapers. For some reason it fixes the banding. Tried it myself, it works. Doesn't solve the problems with your video, etc. though.
So obviously the LCD is perfectly capable of displaying images without the gradient banding. My guess is when the gallery is used to set wallpapers the images go through some sort of compression process.
EDIT: Looks like the gallery (Gallery 3D in my case) is the cause of the problem. I tried QuickPic too but it displays banding as well.
EDIT 2: Actually I was mistaken. QuickPic doesn't display banding.
What seems to happen is that when you select an image to set as a wallpaper with Gallery 3D, it saves a copy of it and sets that copy as the actual wallpaper. The copy is compressed, which is what causes the banding. Both QuickPic and Wallpaper Set and Save do not create a copy of the wallpaper, hence why there's no banding. Looks like it's bye bye Gallery 3D.
Thanks for bringing this up, something that's bothered me for a while but never bothered to deal with it.

Yeah im going to continue to try and figure this out. If the Wallpaper Set and Save app can fix the wallpapers that means there must be some sort of calibration that can be done to draw out normal colors from your lcd.
The thing is...the black and white gradients that are affected are part of most images especially videos since gradients are transitioning all the time as the image moves.
There has to be sometihng that can fix this gradient transitioning problem for the black and white shades.
Thats where im at. :S.

Update:
I applied the above black to white gradient pic as my background using Wallpaper Set and Save to use as a test to whether it would get rid of the banding and...
IT DID NOT WORK.
My LCD still displays pink/blue banding along the transition from black to white. It must be some sort of damage that my phone sustained possibly though the 1. LCD screen connections to PCB, 2. The PCB circuits (under the shields), 3. Or the Flex Cable.
****, I need some ideas on how I can fix this...

Indeed, you might have some damage.
I downloaded your black to white gradient image and set it as my wallpaper with both Wallpaper Set and Save and QuickPic. Both times no gradients or color banding was present.
Sent from my G2 using XDA Premium App

Screen Brightness Dynamically changes...

Hey everyone,
I've been playing around with my new phone for a few hours now.
So far, I love it!
However, I have noticed a strange bug. The browser seems to be dimming webpages.
To see what I'm talking about:
1) Open google.com
2) open the tab viewer
3) click on the google tab - it expands to fill the screen
4) as soon as it fills the screen, the page immediately 'dims'
As it is filling the screen, the background appears nice and white. However, once it completely fills the screen, the background immediately dims to a darker white...
VIDEO
Google Bug Report
https://code.google.com/p/android/issues/detail?id=23765#c0

OK, this isn't just limited to the browser. It happens on pretty much every app with a white splash screen. I.e. opening Facebook. The splash screen is nice and white, but when the content loads, the white background becomes dimmer and more gray...
Does anyone else know what I am talking about? I'm on 4.0.1 if that matters.
Sent from my Galaxy Nexus using Tapatalk

The phone dims purposely. I. Don't know if there is a setting to stop it though. I believe it is powersaving feature. Touching your screen resets the time for dimming and screen off though.
Sent from my Galaxy Nexus using xda premium

@rbiter said:
The phone dims purposely. I. Don't know if there is a setting to stop it though. I believe it is powersaving feature. Touching your screen resets the time for dimming and screen off though.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I'm not talking about the 'about to go to sleep' dim. This is a very slight, almost unnoticeable, dim when the white animation completes. For example, say I open an app that has a white splash screen and a white background. The app opens with the very white splash scree, then as soon as the content loads, the very white background 'changes' to a more 'off-white' or 'gray' color...
Can others please chime in? I really want to look into this bug, but I need to know if it is limited to me.

This is crazy now. Open google.com on the browser. Then tap the search bar (on the webpage) to bring up the keyboard. The white background of google.com becomes whiter when the keyboard opens. Close the keyboard with the back button, and the background becomes dimmer again.
Even the status bar partakes in this "dimming" action, so it is not limited to the web page.
WTF?

I see this too, it looks like it is caused by dynamic contrast adjusting the contrast based on the picture.

melterx12 said:
I see this too, it looks like it is caused by dynamic contrast adjusting the contrast based on the picture.
Click to expand...
Click to collapse
Thanks for your reply!
Anyway to keep the contrast the way it is when the keyboard is open? The whites look so much better that way...

I noticed this on my old Droid Charge as well. Maybe it's a Super AMOLED thing?
Sent from my Galaxy Nexus using xda premium

blempka said:
I noticed this on my old Droid Charge as well. Maybe it's a Super AMOLED thing?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I'm not sure... Contrast is pretty bad when the screen is predominantly white. However, as soon as some darker colors are introduced (menu/keyboard), the whites brighten up and contrast improves.
Could this be because the all white screen draws more power than a screen that is only partially white?
Go to a mostly white screen (i.e. Google.com) and slowly pull down the notification bar. You will see that the white of the webpages gradually becomes brighter... This is really bizarre...

Good way to test is type in about:blank into the browsers address bar for a full white page.
My gnex does it as well I've never noticed it before but now I can see it its going to annoy me
Sent from my Galaxy Nexus using xda premium

hurston2510 said:
Good way to test is type in about:blank into the browsers address bar for a full white page.
My gnex does it as well I've never noticed it before but now I can see it its going to annoy me
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It originally annoyed me. However, I probably will get used to it in a couple of days.
I was originally worried that it was just my phone doing this (due to the lack of replies on this thread). However, now that is seems like this occurs on all GNs, I'm pretty relieved
Whatever, this screen is gorgeous when displaying colors. Black-on-white contrast could be better (i.e. black text on an all-white webpage), but it is good enough...
I'm still wondering if it is hardware or software that is causing this. If it was software, I would definitely like the higher contrast white all the time...

Mine also does this D:
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I think the galaxy s2 and other Samsungs like the note do this, but it is by design from the setting which can be turned off. It supposedly is for power saving of bright colors.
My question is any GSM nexus user seeing this? Cause I attempted the steps in this thread in a dark room and dinr notice any issue whatsoever. Is this a Verizon version issue where maybe all lte versions have this enabled to conserve power?

RogerPodacter said:
I think the galaxy s2 and other Samsungs like the note do this, but it is by design from the setting which can be turned off. It supposedly is for power saving of bright colors.
My question is any GSM nexus user seeing this? Cause I attempted the steps in this thread in a dark room and dinr notice any issue whatsoever. Is this a Verizon version issue where maybe all lte versions have this enabled to conserve power?
Click to expand...
Click to collapse
Yes, mine is a GSM. I'm also on 4.0.1. Are you on .2?

Original Post Updated
Video:
Bug Report: https://code.google.com/p/android/issues/detail?id=23765#c0

I also was going to post on this yesterday. I have tested in multiple apps and it seems the worst in forums apps. When I touch a thread link it dims out and then flashes back. I thought it may be the auto bright setting but I switched it to full bright and get the same issues.
Very annoying
Sent from my Galaxy Nexus using XDA App

I swore I saw this before in different places. Then I tried what you guys were doing, and yeah its there.
Now that's all I can see.

It is a powersaving feature since the amoled needs the most power for full white
Sent from my Galaxy Nexus using XDA App

As far as I can see this is not an issue in 4.0.3. I am running AOKP and Franco's kernel.
Sent from my Galaxy Nexus using XDA App

tonarm said:
It is a powersaving feature since the amoled needs the most power for full white
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
So then we should be given control over that. The stock GSII had lots of control over the screen color, and power saving features.

Screen and black levels WAY too black?

Compared to my N4, the screen has deeper blacks, but in a very bad way. You lose so much detail on some pictures, even at full brightness. Like with a picture of black fur my N4 will show all the nuances and shadows caused by the fur, but the Sony will just be pitch black. The amount of detail is pretty significant. Overall, the tone of the screen is just darker, and it kind of makes you sad using it.

I have the same opinion, this is the most annoying thing on this phone. I had very strong feeling to return it back to the shop.
Any solution for this? I can increase screen backlight, but it is not ideal solution and it does not solve the problem.

toiletsss said:
Like with a picture of black fur my N4 will show all the nuances and shadows caused by the fur
Click to expand...
Click to collapse
Upload the picture please.

Yes, blacks are heavily crushed on this device. Here's an earlier discussion of it with links to calibration testers:
http://forum.xda-developers.com/showthread.php?t=2646749
See Erica Griffin's mini review where she discusses the calibration problems and charts the wonky gamma levels here:
http://www.youtube.com/watch?v=a7tQ5n32no8#t=564
If you don't want to install the Display Tester app, here's a link to a black level test image for viewing in your phone browser:
http://www.lagom.nl/lcd-test/black.php
Ideally all of the black squares should be distinguishable to ensure proper reproduction of detail in shadowed areas of an image or video. With Nexus 5, for instance, squares are distingushable from square 2/3 upward.
For Sony Z1 Compact with JDI panel, squares are distinguishable only from square 7 upward. Result: all black levels below 7 look the same on the Z1C, meaning no detail can be distinguished at these levels. One consequence is that low light photos look very inaccurate compared to how they'll look on other displays - if you share or edit them, for example.

I have exactly the same feeling, im from a nexus 4 too and i try to watch some movies on my Z1C and the contraste is juste horrible.
Any ideas on how to fix this?

when its bright ppl say " zomg its wash out"
when black then complain too black

xerox89 said:
when its bright ppl say " zomg its wash out"
when black then complain too black
Click to expand...
Click to collapse
This has nothing at all to do with the brightness of the black levels. This is about how many black levels can actually be seen with this screen. And yes, this is a legitimate complaint.

ghtop said:
This has nothing at all to do with the brightness of the black levels. This is about how many black levels can actually be seen with this screen. And yes, this is a legitimate complaint.
Click to expand...
Click to collapse
This exactly. And thank you for your previous post, it was extremely informative. I was really hoping I just had a faulty screen because I love the phone otherwise. I really love sony's products but the screens on the Z1, Z1s, and Z1c have all been problematic, particularly in dealing with blacks and whites. I really hope these problems are addressed in the Z2 because I really need a replacement for this N4.
Edit: So this affects JDI panels too? From what I read, the JDI panel is much better than the AUO panels.

This is mine, JDI panel...
Using the website...
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ghtop said:
With Nexus 5, for instance, squares are distingushable from square 3 upward.
Click to expand...
Click to collapse
Using the app...

Heh, remember that there's little point taking a screenshot for comparison unless 1) you shoot it with a camera that has accurate black levels 2) you view it on a screen that has accurate black levels. Otherwise we're all just looking at different things.
Useful info to share in this thread would be how many black levels from that test page you can actually see on your screen (i.e. the number of the last square you can distinguish from another).

ghtop said:
Useful info to share in this thread would be how many black levels from that test page you can actually see on your screen (i.e. the number of the last square you can distinguish from another).
Click to expand...
Click to collapse
I can see from square 7 using the app and the website.

XperienceD said:
I can see from square 7 using the app and the website.
Click to expand...
Click to collapse
Edit: Argh, sorry, my mistake, it should have been 7 instead of 13, as stated in the original thread - corrected now. You can only really see those levels at full brightness in a dark room, though. More detail is lost at normal brightness levels where you aren't being blinded by the whites.

Have to agree, black levels are way too dark. You lose loads of detail in any dark scene, video and photos. Also gamma levels are far too low, at about 1.6 across the board. They should be around 2.2. I'm coming from a galaxy s2 which now seems to have more accurate colour reproduction. Which is disappointing considering it's a super amoled screen vs an ips panel.
Sent from my D5503 using XDA Premium 4 mobile app

There is very simple workaroud for this . Install "Screen Adjuster" app from Google Play, open it, set Contrast value to ca "-30", switch "Adjuster OFF" to "ON" and voila, now you can see black levels up to 1 otherwise, I'm able to clearly recognize only values up to 7 on full brightness on 4.4.2 latest FW .757 with JDI panel using Color Test app
Screen Adjuster: https://play.google.com/store/apps/details?id=com.netmanslab.sa
source: http://forum.xperia.cz/viewtopic.php?f=85&t=9946&p=163390

pcpepik said:
There is very simple workaroud for this . Install "Screen Adjuster" app from Google Play, open it, set Contrast value to ca "-30", switch "Adjuster OFF" to "ON" and voila, now you can see black levels up to 1 otherwise, I'm able to clearly recognize only values up to 7 on full brightness on 4.4.2 latest FW .757 with JDI panel using Color Test app
Screen Adjuster: https://play.google.com/store/apps/details?id=com.netmanslab.sa
source: http://forum.xperia.cz/viewtopic.php?f=85&t=9946&p=163390
Click to expand...
Click to collapse
Excellent, excellent post! Thank you so much for this. It definitely works!

pcpepik said:
There is very simple workaroud for this . Install "Screen Adjuster" app from Google Play, open it, set Contrast value to ca "-30", switch "Adjuster OFF" to "ON" and voila, now you can see black levels up to 1 otherwise, I'm able to clearly recognize only values up to 7 on full brightness on 4.4.2 latest FW .757 with JDI panel using Color Test app
Screen Adjuster: https://play.google.com/store/apps/details?id=com.netmanslab.sa
source: http://forum.xperia.cz/viewtopic.php?f=85&t=9946&p=163390
Click to expand...
Click to collapse
Wish I saw this earlier. Might have to buy it again. Can anybody show examples with dark, detailed photos?

toiletsss said:
Wish I saw this earlier. Might have to buy it again. Can anybody show examples with dark, detailed photos?
Click to expand...
Click to collapse
I just wonder why the hell the Screen adjuster needs full network access, view my network connections, reads precise position GPS, needs access to my bookmarks and history, read the device accounts... Why ? I prefer that sony will modify the contrast in next firmware...

fidel73 said:
I just wonder why the hell the Screen adjuster needs full network access, view my network connections, reads precise position GPS, needs access to my bookmarks and history, read the device accounts... Why ? I prefer that sony will modify the contrast in next firmware...
Click to expand...
Click to collapse
And use 20% of my batteries...

Excellent. I can now see it from box 1. Not sure about battery draining though. So disabling the app for now and waiting for an actual fix in the next release. For some reason, I am very happy that it's a bug in the configuration settings and not an actual hardware issue. Sony has again succeeded in screwing their awesome specs with a ****ty software.

fidel73 said:
I just wonder why the hell the Screen adjuster needs full network access, view my network connections, reads precise position GPS, needs access to my bookmarks and history, read the device accounts... Why ? I prefer that sony will modify the contrast in next firmware...
Click to expand...
Click to collapse
It's ad-ridden, but there is a cheap paid version that requires only the essential draw over other apps permission and does not drain battery

Unrealistic colors for Movie/TV viewing... any way to calibrate?

Coming from a professionally calibrated plasma TV, I find the colors very unrealistic when using the Tab S for movie / TV viewing. The colors are way too intense / overblown, and peoples faces appear too pink/red. Is there any way to fix this?

romnation said:
Coming from a professionally calibrated plasma TV, I find the colors very unrealistic when using the Tab S for movie / TV viewing. The colors are way too intense / overblown, and peoples faces appear too pink/red. Is there any way to fix this?
Click to expand...
Click to collapse
Have you not tried switching display modes?
I find basic mode to be the most realistic, the colours are nowhere near as saturated and much more natural.

I've tried cinema mode. It works for me.

Make sure Reading Mode is not on.

There is a way to calibrate the screen, but for now it involves building kernel from source. I was doing it back on my GT-P6800.
If someone more skilled in kernel patching would make a sysfs interface for that.

romnation said:
Coming from a professionally calibrated plasma TV, I find the colors very unrealistic when using the Tab S for movie / TV viewing. The colors are way too intense / overblown, and peoples faces appear too pink/red. Is there any way to fix this?
Click to expand...
Click to collapse
heyjoe66 said:
There is a way to calibrate the screen, but for now it involves building kernel from source. I was doing it back on my GT-P6800.
If someone more skilled in kernel patching would make a sysfs interface for that.
Click to expand...
Click to collapse
I have the 10.5 and am praying someone makes a basic kernel that allows this. The tablet just has a nasty orange/greenish tint when showing human skin. It's the only thing about the tablet I don't like and tried getting used to but can't. Watching videoe, looking at pictures, it's very annoying and forget about editing photos on the tablet, with this tint it's so hard to judge colors that I can't edit raw files using photomate r2 anymore because I end up compensating for the tablets natural tint that the edited pics look ok on the tablet but lacks greens everywhere else.
Anyhow, I'm rambling, but praying for a kernel that allows us to edit the screen tint in synapse!

romnation said:
Coming from a professionally calibrated plasma TV, I find the colors very unrealistic when using the Tab S for movie / TV viewing. The colors are way too intense / overblown, and peoples faces appear too pink/red. Is there any way to fix this?
Click to expand...
Click to collapse
toyanucci said:
I have the 10.5 and am praying someone makes a basic kernel that allows this. The tablet just has a nasty orange/greenish tint when showing human skin. It's the only thing about the tablet I don't like and tried getting used to but can't. Watching videoe, looking at pictures, it's very annoying and forget about editing photos on the tablet, with this tint it's so hard to judge colors that I can't edit raw files using photomate r2 anymore because I end up compensating for the tablets natural tint that the edited pics look ok on the tablet but lacks greens everywhere else.
Anyhow, I'm rambling, but praying for a kernel that allows us to edit the screen tint in synapse!
Click to expand...
Click to collapse
Found one more screen mode in Accessibility settings AMOLED Cinema (standard), but a bit less contrast.
To try it you can go to Settings > Accessibility > Vision > Color adjustment
Now you'll be offered to sort some color tiles. If you place them correct, it'll say that 'color adjustment unnecessary', but if you switch couple of them, it'll enable color adjustment. It looks like some hue shift, not too much use for healthy vision, but you can turn the 'Color adjustment' slider down and will have that less contrast mode.
Please check it and say, what you think.

heyjoe66 said:
Found one more screen mode in Accessibility settings AMOLED Cinema (standard), but a bit less contrast.
To try it you can go to Settings > Accessibility > Vision > Color adjustment
Now you'll be offered to sort some color tiles. If you place them correct, it'll say that 'color adjustment unnecessary', but if you switch couple of them, it'll enable color adjustment. It looks like some hue shift, not too much use for healthy vision, but you can turn the 'Color adjustment' slider down and will have that less contrast mode.
Please check it and say, what you think.
Click to expand...
Click to collapse
You dear sir, has made my tablet experience so much better! Skin tones are now life like and doesn't look completely unnatural. This is a welcomed improvement though it seems to also adjust contrast which I'd rather it not do, but I'm still quite pleased.
Thanks again!

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I've tried a few configurations and have found this to be the best setting, the colors are spot on and look like they do on my MacBook.
Sent from my SM-T800 using Tapatalk

toyanucci said:
I've tried a few configurations and have found this to be the best setting, the colors are spot on and look like they do on my MacBook.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
Are the whites better?
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Where was the slider at default?.....I sent it back for new one because of black clipping in dark sceens it was like pixelated. Mine it was less saturated so thats good to know if i want more color.. Thanks for the info

toyanucci said:
I've tried a few configurations and have found this to be the best setting, the colors are spot on and look like they do on my MacBook.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
By configurations you mean order of that color tiles? Can you remember how did you ordered them and how that affected the image?

Amazing stuff here. Thanks!

Please, have a look here

Went through the the color sorting thing and after I was done it said "Color adjustment is not necessary", so I guess mine was set up right. The only time people ever looked overly orange to me was when I was watching Jersey Shore repeats.

Screen is not white.

I have my note 10 next to my note 8 and the 10 screen is not very white compared to my N8.
Anyone else notice or know how to fix it?

Make sure the blue light filter isn't on
Sent from my SM-N975U using Tapatalk

Could be the blue light filter or screen temperature and/or screen mode.

serpa4 said:
I have my note 10 next to my note 8 and the 10 screen is not very white compared to my N8.
Anyone else notice or know how to fix it?
Click to expand...
Click to collapse
Go under Display then Screen Mode and change it from Natural to Vivid. That should brighten your whites a lot more.
Sent from my SM-N975U1 using Tapatalk

I've made mine slightly "colder" bit not by a lot
Sent from my SM-N976B using Tapatalk

My blue light filter is off. But for some reason while using Vivid screen mode, the screen becomes more and more yellow after 6PM. On natural this doesn't happen.
Has any one observed this strange behaviour?
Sent from my SM-N9750 using Tapatalk

You have your blue light filter set from Sunset to Sunrise
Sent from my SM-N975U using Tapatalk

No, it is off
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Sent from my SM-N9750 using Tapatalk

It's the panel it seems Samsung have adopted a less whiter or warmer(?) one this time round, as all note 10 pluses I've held mine next to at stores etc are the same. My one plus 7 Pro is considerably whiter...

serpa4 said:
I have my note 10 next to my note 8 and the 10 screen is not very white compared to my N8.
Anyone else notice or know how to fix it?
Click to expand...
Click to collapse
It's not a bad thing, I can assure you most Note 10/10+ have different screen calibration.
I have 3 S10 5G and the white looks different on all of them, lol. As a matter of fact even the native ONE UI dark mode looks different on all 3 units as well

This is clearly not a calibration issue. As I said this happens only in the evening time as if blue filter kicks in eventhough the filter is off. During day time the screen is white as usual.
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Abu-khulzat said:
This is clearly not a calibration issue. As I said this happens only in the evening time as if blue filter kicks in eventhough the filter is off. During day time the screen is white as usual.
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Mine gets warmer when I go into Moon Reader Pro., its nice and cool white everywhere else on the phone And before anyone asks, yes BOTH blue light filters in the phone settings AND the moon reader settings are OFF.
I read somewhere that some people fixed it by going into Google books and apparently the blue light filter is turned on there and affects other apps. Dunno how much thats helpful since I didn't have G Books installed and when I did install it, the option was off but oh well

Checked that too. It is off there as well...
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Hi there,
I was also wondering if there is another way (than the native tool) to adjust color temperature to set perfect white

Settings» Display»screen mode» vivd» move slider a little bit to the cooler side. Then go to advanced settings: turn down red, set green to about half and leave blue at full. Or adjust to your liking.
I've been making these adjustments since the note 8 but the note 10 seems more on the red side than normal.

lennie said:
Settings» Display»screen mode» vivd» move slider a little bit to the cooler side. Then go to advanced settings: turn down red, set green to about half and leave blue at full. Or adjust to your liking.
I've been making these adjustments since the note 8 but the note 10 seems more on the red side than normal.
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Yes, thank you, that's what I did but I'm still looking for an app that allows more fine tuning

Abu-khulzat said:
This is clearly not a calibration issue. As I said this happens only in the evening time as if blue filter kicks in eventhough the filter is off. During day time the screen is white as usual.
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Just did a factory reset, and this issue is gone. Probably something wierd happened while restoring from Note 9 backup.
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I had this issue too, at 8:30pm, and it affected Google Photos and Samsung Gallery.
I had a OnePlus3 and had the bluelight filter set to 8:30pm.
My fix was to go into Google Books, open a book, click on Aa and turn off the filter. I never use Play Books, so it was very perplexing.
Therefore, I'm convinced this is a hidden Android system setting that is no longer accessible and carried over from the Android restore process. I'm happy to be rid of the problem though.

truecrisis said:
I had this issue too, at 8:30pm, and it affected Google Photos and Samsung Gallery.
I had a OnePlus3 and had the bluelight filter set to 8:30pm.
My fix was to go into Google Books, open a book, click on Aa and turn off the filter. I never use Play Books, so it was very perplexing.
Therefore, I'm convinced this is a hidden Android system setting that is no longer accessible and carried over from the Android restore process. I'm happy to be rid of the problem though.
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You were right. I just downloaded the Play books and found out that night mode was set to "automatically".
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It is a well known fact that restoring from an older or former device often results in certain conflicts, as the settings and other componets are different between devices, this I've heard since my note 3 days