Develop Bugs

Color temperature calibration?

Does anyone know if there are any working ways to adjust color temperature? I think most methods require a modified surfaceflinger library. My screen is sickeningly bluish green.
Thanks.

ffolkes said:
Does anyone know if there are any working ways to adjust color temperature? I think most methods require a modified surfaceflinger library. My screen is sickeningly bluish green.
Thanks.
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Sounds like a bad screen. I'd take it back. Mine is very balanced. Super saturated but very balanced.
Sent from my SPH-D710 using XDA App

I agree, my first one had a bad screen and a dead pixel right in the center, the screen quality on my new one is better all around and I wasn't even expecting there to be an improvement

Thanks for the suggestions, but the other ones I've seen don't look any better in terms of their greenish-blue color cast. I've read it's typical of AMOLED displays. I just want a way to adjust white balance like CM has.

...and I've discovered the answer. Chainfire3D's Pro version has support for Custom color "nightvision mode". Basically, exactly what I wanted. It works perfectly! Do yourself a favor and get this and drop your green and blue levels down a tiny bit.

You just saved me a two hour drive to get a new phone. Great find.

[Q] White balance tweak ?? (SM- T705)

Hello ..., is there any way to tweak the white balance ? I just got my tablet, it' s amazing by the way, but i want to make the white color a little bit cooler! Thanks!!

johnpaok said:
Hello ..., is there any way to tweak the white balance ? I just got my tablet, it' s amazing by the way, but i want to make the white color a little bit cooler! Thanks!!
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It is possible by adjusting color temperature by by available yet atm

ykkfive said:
It is possible by adjusting color temperature by by available yet atm
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Can you explain to me how i can do the adjustment?
Do i need to root the tablet or from the menu? (The only tweak i found from menu is the color profiles : amoled basic, amoled cinema, etc) I have a sony xperia phone and it has an option to adjust the white balance with a slider!
Thanks..

johnpaok said:
Can you explain to me how i can do the adjustment?
Do i need to root the tablet or from the menu? (The only tweak i found from menu is the color profiles : amoled basic, amoled cinema, etc) I have a sony xperia phone and it has an option to adjust the white balance with a slider!
Thanks..
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needs kernel support, so be patient and wait until someone make it

Today I got two 8.4 Tabs, both wifi only versions in my hands and I was impressed, that the white color was different. Sadly, the whites on mine were a little bit more yellowish, warmer, and a little bit dirtier. Is this normal for samoled?

Frantic_kr said:
Today I got two 8.4 Tabs, both wifi only versions in my hands and I was impressed, that the white color was different. Sadly, the whites on mine were a little bit more yellowish, warmer, and a little bit dirtier. Is this normal for samoled?
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my experiences tell not all screens produce the same color, some are yellowish, while others are slightly blue, which can make white color a bit grey, etc
once i wanted to buy a note2 but i found its so bluish and therefore no deal
so each time I buy a phone, esp amoled, I will check the screen (and other things of coz) before I pay

I currently have 2 Galaxy Tab has 10.5 inch at home and deciding which one to keep. The main difference between the two is that one has a newer build date and love one screen seems to be a little more orange brown tint to the white versus the other tablet seems to be a little more blue yellow intent. Other than that perform identically however I did notice that when I run the CPU temperature app that the one with the yellow blue tinted screen seems to run a few degrees cooler most of the time except when using Chrome when where the other tablet seems to run several degrees cooler but only when JavaScript is activated.
One little trick in addition to adjusting the temperature using the adaptive display were changing from AMOLED basic to Evelyn cinema to make it cooler, is to go into the accessibility settings and then go into divisions section and then go into the area where one can do a test of their color as if they needed adjustments because of their own visual impairment. If you run that test and intentionally miss order the color tiles, and then will activate the option to allow you to adjust a slider which can further give you A white screen that seems to be somewhere in between the really blue display and the really warm AMOLED basic
Sent from my SM-N9005 using Tapatalk

Old thread i know but i just wanted to thank you for that tip Canadoc. I've been struggling with the excessively warm image from my Tab S for a year now and while putting it into "Cinema" mode fixes the white balance it also destroys the contrast by making all subtle dark detail just disappear. This accessibility method has given me much nicer whites without affecting the contrast other than removing the orange haze. I assume the colours are going to be slightly different now but i can't say i've noticed anything there. I wish the Tab S had the same display options as the Galaxy S5 has where you can choose the cooler white level without hammering the contrast too. Maybe it's something Samsung do in order to protect the lifespan of the blue sub-pixel?
So thanks again

When the tab s 8.4 came out the screen quality was a bit variable, but it's been months since I have have read of anybody having a problem, see if you cab get a replacement.
John

Tinderbox (UK) said:
When the tab s 8.4 came out the screen quality was a bit variable, but it's been months since I have have read of anybody having a problem, see if you cab get a replacement.
John
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Mine's the 10.5 and this is the second one i got which was exactly the same as the first one in screen tone.

I always wondered if third-world country`s got B-C grade stock, as the consumer protection can be poor or non-existent, maybe it`s cheaper for the re-seller to buy this lower grade stock with screen color problems ect, I dont know?
John.

Tinderbox (UK) said:
I always wondered if third-world country`s got B-C grade stock, as the consumer protection can be poor or non-existent, maybe it`s cheaper for the re-seller to buy this lower grade stock with screen color problems ect, I dont know?
John.
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UK here and bought from John Lewis. I've heard plenty of issues with screen temp on these ones so it's fairly common. Just using it this morning and thinking it perhaps wasn't quite as white as i'd like it and checked the settings to see if it was still in the proper mode and it was, switched it back to the old one and don't know how i ever lived with that brown tone!

Under different light sources it can take a few minutes for your eyes to adapt to the screen, so white can look a little off while this is happening, as the human eye will normally auto white balance anything you look at.
Does you screen when browsing with a white background at night, but not totally dark still not look perfectly white after a few minutes of looking at the screen.
Everybody seems to see colors slightly differently, and some not so slight, did you see the white/gold blue/black dress debate.
http://www.independent.co.uk/news/s...er-you-see-says-a-lot-about-you-10074490.html
John.
Shriker said:
UK here and bought from John Lewis. I've heard plenty of issues with screen temp on these ones so it's fairly common. Just using it this morning and thinking it perhaps wasn't quite as white as i'd like it and checked the settings to see if it was still in the proper mode and it was, switched it back to the old one and don't know how i ever lived with that brown tone!
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Tinderbox (UK) said:
Under different light sources it can take a few minutes for your eyes to adapt to the screen, so white can look a little off while this is happening, as the human eye will normally auto white balance anything you look at.
Does you screen when browsing with a white background at night, but not totally dark still not look perfectly white after a few minutes of looking at the screen.
John.
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No it never looks like clean white to me unless i tilted it slightly back or forward and then i could see the tone shift to a cooler temp. I do keep the brightness down to under 10% most of the time and that doesn't help the white level either.
I can't say i ever understood the dress image, you can factually measure and define the colour on that one so i don't know why people were confused.

Have you had anybody else check your screen, do they see the same problem, though at 10% brightness the screen is never going to look really white, I always keep mine on Auto -5 , I have the RGB sensor set on Auto i cannot even remember what it`s really called as i have never changed it, but in Auto it is supposed to keep the whites looking white, what is yours set too.
John.
Shriker said:
No it never looks like clean white to me unless i tilted it slightly back or forward and then i could see the tone shift to a cooler temp. I do keep the brightness down to under 10% most of the time and that doesn't help the white level either.
I can't say i ever understood the dress image, you can factually measure and define the colour on that one so i don't know why people were confused.
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Warm colours
My tab s 8,4 screen has a brownish layer, which makes whites mor brown and the colours less sharp. But when I put pressure on my tab, the "layer" goes away.

Tinderbox (UK) said:
Have you had anybody else check your screen, do they see the same problem, though at 10% brightness the screen is never going to look really white, I always keep mine on Auto -5 , I have the RGB sensor set on Auto i cannot even remember what it`s really called as i have never changed it, but in Auto it is supposed to keep the whites looking white, what is yours set too.
John.
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Sorry for not getting back to you earlier, car knocked the phone pole down and been without for 12 long days. *sigh*
Anyway, i haven't had anyone else look at mine but i don't need anyone to anyway, it's a very overly warm tone. I've never used the RGB adaptive sensor thingy as it only works in a few apps that i never use anyway.
---------- Post added at 01:48 AM ---------- Previous post was at 01:46 AM ----------
ozkarorv said:
My tab s 8,4 screen has a brownish layer, which makes whites mor brown and the colours less sharp. But when I put pressure on my tab, the "layer" goes away.
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Do you see a much whiter tone when you choose Cinema mode? If so and you like it then you really should try the method in this thread to keep it without also cranking up the contrast.

[Q] Which Display Mode You All Are Using?

As the title says, which display mode you are using and your thought on why?

I personally switched over to the most accurate mode, funny cause it's called, "Basic Mode." lol. If you use any of the "amoled" modes, it will give you that oversaturated colors. It took me like a couple days to get used to the "accurate" colors though just caues everything was so vibrant before. Personal choice really.
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boodies said:
I personally switched over to the most accurate mode, funny cause it's called, "Basic Mode." lol. If you use any of the "amoled" modes, it will give you that oversaturated colors. It took me like a couple days to get used to the "accurate" colors though just caues everything was so vibrant before. Personal choice really.
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Ya i'm giving basic a try its different but color accuracy is nice.

I went to basic for accuracy then went back to adaptive because I like the way it makes colors pop.
Sent from my Note 4

Basic, all my tvs are calibrated to D65/REC709 and it's nice to finally have a phone that can reproduce this.

started with adaptive the switched to basic and it just seems right

Been using photo.
Sent from the TermiNOTEr 4!

NYYFan02 said:
Basic, all my tvs are calibrated to D65/REC709 and it's nice to finally have a phone that can reproduce this.
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Here are some bit on the Rec709 ^_^ It can probably reproduce them better too!
The Basic screen mode provides a very accurate Color and White Point calibration for the Standard sRGB/Rec.709 Color Gamut that is used in virtually all current consumer content for digital cameras, HDTVs, the internet, and computers, including photos, videos, and movies. The Color Gamut of the Basic screen mode is very accurate, with a nearly perfect 101 percent of the Standard sRGB/Rec.709 Color Gamut. Even better, the Absolute Color Accuracy for the Basic screen mode is an impressive 1.5 JNCD, the most color accurate display that we have ever measured for a Smartphone or Tablet, which is visually indistinguishable from perfect, and is very likely considerably better than your living room TV.
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Why is color accuracy important?
Color Accuracy is especially important when viewing photos from family and friends (because you often know exactly what they actually should look like), for some TV shows, movies, and sporting events with image content and colors that you are familiar with, and also for viewing online merchandise, so you have a very good idea of exactly what colors you are buying and are less likely to return them.
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DisplayMate

I love the way adaptive goes color-crazy in bright sunlight, it's like turning the brightness to 11

Lol it goes to "11" brightness in all the other modes ad well.

I tried basic, the onlynthing i noticed is it gave a warmer yellow tint to white. None of the modes mute the oversaturation of colors on this phone. At least it doesnt on mine.I like the pop so it doesnt bother me. If oversaturation is a problem, you should consider an iphone.

abacus0101 said:
I tried basic, the onlynthing i noticed is it gave a warmer yellow tint to white. None of the modes mute the oversaturation of colors on this phone. At least it doesnt on mine.I like the pop so it doesnt bother me. If oversaturation is a problem, you should consider an iphone.
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Actually if you consider oversaturation a problem, go to basic mode. It has more accurate colors than the iphones. Here's displamate. Samsung is KING when it comes to display.
Basic Mode with the Standard sRGB / Rec.709 Color Gamut
The Basic screen mode provides a very accurate Color and White Point calibration for the Standard sRGB/Rec.709 Color Gamut that is used in virtually all current consumer content for digital cameras, HDTVs, the internet, and computers, including photos, videos, and movies. The Color Gamut of the Basic screen mode is very accurate, with a nearly perfect 101 percent of the Standard sRGB/Rec.709 Color Gamut. Even better, the Absolute Color Accuracy for the Basic screen mode is an impressive 1.5 JNCD, the most color accurate display that we have ever measured for a Smartphone or Tablet, which is visually indistinguishable from perfect, and is very likely considerably better than your living room TV.
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Trying basic now. It starting to grow on me.
Sent from the TermiNOTEr 4!

I like the adapt mode, but then I had a problem getting a good night exposure with the camera. Finally I realized it was the display mode screwing with how the photo was displayed, not the photo itself, and I've been on basic ever since. Love it.
Sent from my SM-N910T using XDA Free mobile app

Is there any reason to believe that the display mode could drastically change battery life? Logically i cant think of a reason it would, but the only change ive made in the last 2 days is from adaptive to basic, and my battery doesnt seem to be draining near as fast as it had.

Basic is the best.
Sent from the TermiNOTEr 4!

Mr.Marc said:
Ya i'm giving basic a try its different but color accuracy is nice.
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Agreed 100%.

Basic is the most accurate phone display I've ever seen color wise and beats the iPhone 6 and 6 plus easily.

Washed out colors?

If I go to Display Settings -> Screen Mode and select "basic" all the colors show like pale or washed out (see attached screenshot). Is that normal?
Until now I had that setting on Adaptive, in which case colors look "normal". What is weird to me is that selecting "basic" makes them look so bad, I would assume that in basic mode they would look fine, without any kind of processing, but still like they would look with any other phone.
Is this normal?

Basic is very accurate. Give your eyes a few hours to adjust and then adaptive will look way too intense.

As dlongb13 said, Basic is actually more true to life coloring. Adaptive is more saturated. Checkout Display mate for more info: http://www.displaymate.com/Galaxy_Note4_ShootOut_1.htm

One of these modes makes your display look like a crappy LCD. I think that was the Basic or AMOLED Photo Mode. I've seen this on both AT&T and T-Mobile Variants, so definitely go with Adaptive Display (unlocks the full potential of AMOLED)

If you are used to overasaturation the basic mode may feel a bit bland but based on calibrations it is the most accurate mode and one of the few displays capable of reproducing such accurate colors.
Many manufacturers torch/oversaturate their displays to make them stand out initially aka. Sales mode.
That is the default on our phones as well it's called adaptive mode.
If that is your cup of tea feel free to use it no one is stopping you.
old lcds were striving for accurate colors their only issue was black levels.

There could be a long discussion about what "accurate colors" are, but that's not the point of this thread.
Here's the thing that still bugs me: in order to see the "nice" colors (satured) we need to use the Adaptative mide (the default one). According to the article that someone posted, that mode uses some real time processing to calculate what colors to show. Does that mean that using that mode requires more battery (more processing) than the default mode? Does that mean that to get "nice colors" (the ones you would expect to see instead of the washed out ones) you need to sacrifice battery?

I would imagine it uses more battery.

Switched to basic 3 days AGO. now it looks perfect to me and adaptive is too harsh IMHO
Sent from my SAMSUNG-SM-N910A

Washed out Screen Issue

Did some comparisons between the Moto G5 plus and my old ASUS Zenfone 2. As soon as I started using it the colors seemed off, everything had this weird olive greenish hue and It didn't make any sense because launcher/homes seemed fine. But I'd browse a website, play pokemon go, or look at instagram and things were just washed out and dull while at the same time parts looked fine.
Finally found a test that explains what I was seeing and it's not good news. I was running the latest firmware with the volte fix. The app i used is called "DIsplay Tester" by "Brainntrapp" and open the test was "Banding, Contrast, Saturation" test. There are so many colors just missing on the G5 Plus the gradient looks horrible. The banding you see on the G5 plus was not visible in real life but the missing colors and hardness of the gradient was. Photos were taken with a Nikon D90 and Tamron 17-50 2.8.
The screen was driving me nuts so I didn't mess around with getting a replacement or sending to Moto to fix because I couldn't live with it if it didn't get resolved. I'll just have to keep looking/waiting for a replacement to my old zenfone.
Figured if any of you were having issues you could see if yours is similar, also curious to hear if you're _not_ having this issue as well which means it may make sense to buy once production issues are fixed.

I can't really tell any difference between Vibrant and Standard, but don't see any banding as in yours and think they look pretty decent imo.
The screen is on the less vibrant side than some others, but colors appear very accurate/realistic and the sharpness of detail is very good. My Moto X Pure screen is 1440p with more color depth but it has a yellowish tint to the whites in comparison. Coming from the Pure at first I thought the G5+ screen was going to be too bland, but after using it awhile I like its softer look which seems easier on the old eyes while still being very viewable.

I agree there's a really minimal difference between vibrant and standard. However, you took screenshots which will not show any issues as the actual data being sent is correct so we can't know if your screen does or doesn't have this issue. I had to take a picture of the screen with my DSLR and included my ASUS for comparison as a way to demonstrate the issue.
In the pictures I took, the hard breaks you see between the colors in the G5 are supposed to be smooth gradients and there is a ton of blue missing from the panel as well. This isn't just an issue of the screen being generally desaturated this is an uneven distribution of missing/desaturated colors. If it doesn't bother you that's certainly fine but it's very much an issue with the screen that should be addressed as it means that it is incapable of accurately reproducing colors even if the reproduction is pleasing to some. The banding I'm referring to is in the green section on my pictures and was not visible in real life and some form of artifact from taking the photo.

Sorry, I misread and thought you were referring to the banding as the main issue. I do see the more distinct color separation or breaks when looking at it directly in the app in either color mode. Just ran Display Tester on my Moto X Pure which shows the much more gradual blending (like on your ASUS) when looking at both phones side by side, although it should costing $150 more.
So it does indicate the G5+ lacks in color depth, something I noticed right away but which hasn't seemed like a minus after using it. The sharpness and wide viewing angles still seem like good quality, perhaps because it's IPS. But now I'm wondering if the KCAL features included in the latest extended stock kernel might help adjust things to look better.

Dahenjo said:
The sharpness and wide viewing angles still seem like good quality, perhaps because it's IPS. But now I'm wondering if the KCAL features included in the latest extended stock kernel might help adjust things to look better.
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That's part of why this confuses me so much. The sharpness and viewing angles are amazing for an IPS panel I'm not sure if IPS has anything to do with the colors (the ASUS is also IPS). I'd be very curious if KCAL helps as it seems like it should be able to, it could also be as simple as a bad color mode on the panel driver? I'd love to see a comparison from a custom rom to stock. I'm very split on thinking it's a software issue or it's a hardware issue. I don't have enough knowledge or experience to really do anything useful, but I'm hoping that providing the info gives others an ability/info to understand and look into it.

KCAL greatly improves the 'banding, contrast, saturation' result in Display Tester, which now looks as good as your ASUS or my MXPE once I found a good range of settings. Even on KCAL's initial settings the color gradients looked drastically better, so whatever was causing the lousy color depth definitely seems to be corrected by it as the screen looks excellent now.
I'm running on stock using the extended kernel btw. Maybe someone using a custom ROM can post on whether the colors are noticeably better than on stock and also test it in DT for comparison. Seems it'd be more of a driver or configuration error or bug than something hardware related, so maybe Lenovorola will be able to fix it with an update.

Dahenjo said:
KCAL greatly improves the 'banding, contrast, saturation' result in Display Tester, which now looks as good as your ASUS or my MXPE once I found a good range of settings. .
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Please share your current Kcal config .

How can I activate srgb mode on Moto G5 Plus

kaushal4595 said:
How can I activate srgb mode on Moto G5 Plus
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What we have to help with the washed-out screen is KCAL support available in both custom kernels (ElementalX and Extended Stock) on this forum. After installing either kernel you'll need to use either EX Kernel Manager app or Kernel Adiutor app (both at Playstore) to access the color control settings. I also found the Display Tester app mentioned above useful for checking how the settings I made looked. My screen looks terrific now.

I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.

sticktornado said:
I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.
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That's indeed a very good setting. Thanks!

Saturation 50
Value 115
Contrast 140
Is what I've been using lately

sticktornado said:
I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.
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I tried that and looks pretty good. Going to tweak contrast and see too. We should start a thread sharing tweaks

There is no way to fix this without root or Custom Kernel?

So if I'm getting it right I have to run kcal v1.2 on my moto g5 plus and from there I have access to color controls, is that correct?

Unfortunately, I have this same issue, although I didn't realize it, because my wife used the phone on the wifi to talk on Facebook so I ran out of time to return it.
What makes it worse is that it's the amazon-ads version so I can't even root it.
I put this phone right next to 3 other phones (with all LCD screens to be fair) and the difference is kinda shocking. The G5plus looks like it's been bleached, all the colors are faded, like I pulled some sliders to make it less vibrant and more black/white.
My wife didn't notice it, since she was using a basic phone until she got herself a new phone and told me, that "how come this looks more colorful?" That's when I took a better look at the G5plus.
After using it as my daily driver for a week, this phone got some serious color issues. Interestingly the pictures I took looked awful on this phone, but when I looked at the same pics (uploaded to google photos) on my PC, they look ok, not missing any colors.
Another issue I noticed. I turned off auto screen brightness OFF, because it just doesn't work.
I walk out to sunshine and the screen won't brighten and when I walked inside it won't darken so I ended up manually changing the brightness.
Here is the interesting (or rather annoying) part: When I turn the brightness up, it seems like it makes the whites more glowing, while the dark /black (let's say a shadow of a tree) just either stays too dark or turns more grey, instead of brighter. It's like the brightness control is controlling the exposure and contrast only.
Despite I see youtube videos talking about its 4K video capability, I think this phone makes terrible videos, especially how the camera applies too much contrasts and the HDR doesn't help it.
I also believe, that it's not all and every single device have this problem, because I'm sure I'd seen more complaints. It's just horrible quality control, and that's Lenovo for you.
I tried color tuning apps, but nothing seem to work. It probably requires a root but since it's an Amazon phone, it won't help it. So the phone works great as a phone, it just have an awful screen and a mediocre camera
This phone may have been enough in 2016 and 17 with these weaknesses as a budget, but seeing all the new budget Chinese phones coming out this year, I would not recommend this phone unless you can pick it up for $100 or less.
This phone is going into my drawer as soon as my new LG G6 arrives and the G5plus will be only used as a backup phone. There is no way I would keep using this as a daily driver unless I have no other choice.