zacariasgarcia

macrumors newbie
Nov 19, 2020
16
26
Can turning True Tone on make the display cooler than with it off? Or only warmer? I’ve noticed sometimes it makes the display cooler, but I don’t think I’ve noticed this on other phones. True Tone also seems to be highly variable in some lighting conditions, causing the phone to change from warm to cool every few seconds. Anyone else experience this?

Ive also started to notice the black level flicker issue that people were talking about. Not sure I had this before but I was able to see it in a dark room with adjusted eyes.
True Tone depends on where you are. Outdoor it makes the display "bluer" in theory. Almost my yellowish tinted iphone 12 pro max turns a little bit blue with true tone outdoor and more yellow with true tone indor
 
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ghosttrooper

macrumors regular
Jul 16, 2017
217
231
True Tone depends on where you are. Outdoor it makes the display "bluer" in theory. Almost my yellowish tinted iphone 12 pro max turns a little bit blue with true tone outdoor and more yellow with true tone indor
I'm guessing though that its warmer most the time and when you go outdoors it essentially turns off, but your used to the warmth so it appears extra blue.
 
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Micaltech

macrumors member
Nov 20, 2020
70
44
even my iphone 12 pro has a yellow tint .. it is very noticeable if put on my old iphone X .. unfortunately, despite having gone to the apple store, the other iphone are like mine, all the models were similar to each other .. I hope that apple can solve di it si a software problem or can carry out a repair campaign ..
 
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Baconhouse

macrumors newbie
Nov 7, 2020
9
25
So I've seen a total of 7 different iPhone 12s across the entire line and they all have the same yellowish/greenish tint. Because of this, I have decided to devise a solution to solve this problem:

1. Enable color filters (WAIT!!! It's not what you think) and change the intensity to MAX and set the hue to greenish yellow.
2. Disable auto brightness and set brightness to MAX.
3. Your screen should now be painfully blindingly greenish yellow.
4. Use the phone this way for 6-12 months. Doing this will achieve two things:
  • The green OLEDs will wear out much, much faster than the red and blue ones
  • Your retinas will be burned from looking at the screen and will become more sensitive to red/blue light
5. After the 6-12 month period, remove the color filter and set the brightness back to normal with auto.
6. Because your retinas have been conditioned and the green OLEDs have been worn, your screen balance should now naturally be correct.

You can thank me later.
 
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Micaltech

macrumors member
Nov 20, 2020
70
44
So I've seen a total of 7 different iPhone 12s across the entire line and they all have the same yellowish/greenish tint. Because of this, I have decided to devise a solution to solve this problem:

1. Enable color filters (WAIT!!! It's not what you think) and change the intensity to MAX and set the hue to greenish yellow.
2. Disable auto brightness and set brightness to MAX.
3. Your screen should now be painfully blindingly greenish yellow.
4. Use the phone this way for 6-12 months. Doing this will achieve two things:
  • The green OLEDs will wear out much, much faster than the red and blue ones
  • Your retinas will be burned from looking at the screen and will become more sensitive to red/blue light
5. After the 6-12 month period, remove the color filter and set the brightness back to normal with auto.
6. Because your retinas have been conditioned and the green OLEDs have been worn, your screen balance should now naturally be correct.

You can thank me later.
Thank you 😂
 
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BB8

macrumors regular
Jan 26, 2016
231
770
Apple just sent me a feedback survey on my mini and I asked them to make the displays have a cooler temperature. Also add a telephoto lens. :cool:
 
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MistrSynistr

macrumors 68000
May 15, 2014
1,577
1,859
Just do the accessibility tint gimmick with it to the blue hue and it will look exactly like your other iPhones.

It does NOT effect "screen brightness" either. This seems to be some sort of coordinated troll comment they like to spew.
 
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Kent viggo

macrumors member
Dec 31, 2019
84
227
Sweden
Another 12 Pro, another return.

I got my second 12 Pro today and immediatley noticed a yellow screen. Bummer.

I went to a local Apple shop and saw that my 12 Pro was similar to many of the models in the store. In fact, it was BETTER than some of them. There was a 12 Pro Max there that looked so washed out, I was flabbergasted when I compared my pro to it.

But anyway. There was ONE model in the store that stood out from the others. It looked pretty much perfect.

It is shown on the right here. 12 Pro.

My 12 pro is on the left.

20 11 2018 1820.jpg



Bummed out. The difference wasnt huge, but its big enough for me to notice. The 12 Pro on the right, in the store, felt better on whites. It was subtle, but noticable.

This picture is taken with my 8, so the white balance isnt quite right. The one on the right looks a bit more purple/blue here than it did in the store.
 
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Kent viggo

macrumors member
Dec 31, 2019
84
227
Sweden
Just do the accessibility tint gimmick with it to the blue hue and it will look exactly like your other iPhones.

It does NOT effect "screen brightness" either. This seems to be some sort of coordinated troll comment they like to spew.

It does affect brighthess. It also affects color delta. There is a post about this earlier in this thread where someone tested it with a colorimeter. So please refrain from comments like this.
 
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thadoggfather

macrumors G5
Oct 1, 2007
13,353
11,612
That’s pretty wild we can tell the panel from a windows app

so do we have a breakdown of who makes the display for each model?

surely not all 4 models are
Both LG and Samsung?

id be curious to see a good LG against a good Samsung
 
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Chris.J

macrumors member
Sep 30, 2010
74
102
Hi everyone,

For those of you that would like to use Truetone and have a recent MacBook Pro (2019-2020), here are my settings to make the displays look nearly identical. This even works for different lighting conditions, as the Truetone algorithm appears to work in a similar manner between the devices.

Disclaimer: I have not used any advanced calibration equipment to do this; I have simply finely tweaked the Colour Tint settings on my 12P, alternating between the hue and the intensity until a fine balance was found. It looks indistinguishable to my eyes, as well as several other people I've asked. If it doesn't work for you, feel free to ignore. There is one trade off with this is that the peak brightness of the display is reduced slightly, but it's still plenty bright enough, especially if you have the Pro model.

  • First thing is to make sure your MBP is set to the native colour profile:
1.png

For some reason, I have two here, but I guarantee that they are the same.

  • Make sure Truetone is set to ON and Nightshift is OFF for both devices.
  • Open a pure white webpage and set both displays to about 75% brightness (with auto brightness set to OFF), then tweak one of them so that the brightnesses are identical. Don't worry about the colour difference for now. The important thing here is that the brighness is the same, otherwise you will perceive a difference in tone. You'll find this easiest to do by propping up the phone gently against your MBP screen and position it perfectly in the bottom corner whilst using the touchbar slider to tweak the brightness.
  • Head into the Accessibility settings and apply a colour filter with the following settings. Get them as close as you possibly can by copying them as per the image. Set the hue slider first with the intensity up at maximum. You should see a cyan colour filter being applied. Lower the intensity as below.
IMG_0011.PNG


Unfortunately, I am unable to capture the results with any camera that I've tried. The displays always look very different through the lens and I think this is due to the PWM of the iPhone 12 screen confusing the aperture settings of the camera. Nontheless, you should see that the white displayed on both of the screens are now very close. Use an iterative adjustment as follows:

  1. Tap on the hue toggle and hold your finger in place. Rock it left and right until you get a tone that is as close as possible to the MBP screen, without touching the intensity.
  2. Rock the intensity toggle left and right until you get a tone that is as close as possible to the MBP screen.
  3. Goto 1.
Like I say, after a few attempts, it works wonders for me and both displays look the same indoors, outdoors and in a completely dark room (once you get the brightness the same).

It's good enough for now, but don't get me wrong, I'll still be bashing Apple for this headache and I'm not going to let some Apple Genius jobsworth tell me that there is nothing wrong with my screen, as clearly the calibration is way out of wack.

Good luck and I hope this helps a few of you.
 
Last edited:
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IJBrekke

macrumors 6502
Oct 24, 2009
427
220
Long Beach, CA
Well everyone, I ended up returning the mini due to this issue and will wait it out. I commend all of you that are doing the fieldwork on this, measuring screens, etc. The reality is the bottom line will be the only thing Apple listens to no matter what, so withholding my consumer dollars is probably the best contribution I can make. Almost all of us are lucky enough to have older iPhones that still work, putting these new models as clear “wants” instead of “needs.” That gives us the freedom of choice, and with it, power over Apple.

Will be periodically checking on this thread and hoping for improvement. If Apple can stabilize these screen issues they will have my money again. We should not be comparing the 12 to significantly older tech and saying: “That definitely looks worse to me.”
 
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Harthag

macrumors 65816
Jun 20, 2009
1,316
1,326
U.S.
That’s pretty wild we can tell the panel from a windows app

so do we have a breakdown of who makes the display for each model?

surely not all 4 models are
Both LG and Samsung?

id be curious to see a good LG against a good Samsung
Not sure how accurate this is? I ran the app and my 12 Pro screen is G9P the supposed poor Samsung panel. My screen has no yellow tint, is uniform, with some slight blue shift off axis which is pretty normal for OLED.
 
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thadoggfather

macrumors G5
Oct 1, 2007
13,353
11,612
Not sure how accurate this is? I ran the app and my 12 Pro screen is G9P the supposed poor Samsung panel. My screen has no yellow tint, is uniform, with some slight blue shift off axis which is pretty normal for OLED.

I dont know enough about this tool or the four serials, but I believe the 'poor' one is supposed to be poor statistically but there can be good ones. Just like I think the 'good' one is mostly good but can be some crap ones

I haven't run it on mine - honestly dont want to :)

but I do find it a curious discovery if real. especially since teardowns didn't even reveal the panel manufacturer afaik
 
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fatTribble

macrumors member
Sep 21, 2018
70
68
Comic Book Store
I’ve been comparing old photos between my 12 Max and 11 Pro.
This is what I believe based on my own eyes and my own experimentation.

Auto Brightness seems to be doing more than adjusting the brightness. I can set both iPhones to the same brightness level. But if one has Auto Brightness enabled the pictures look more muted on that iPhone. The colors don’t pop. Again I’ve made sure the brightness level is the same on both iPhones. True Tone and Night Shift off on both.

On my 11 Pro I kept Auto Brightness enabled the past year. On my 12 Max I’m going to keep it disabled.
For me, I don’t really notice the warm effect on the Max with Auto Brightness disabled.

Not trying to convince anyone of anything. I’m only offering this up in case someone finds it helpful. Your results may vary. Before you tell me I’m hyped up on goof balls at least try it.
 
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myllian

macrumors member
Nov 14, 2017
75
85
Another 12 Pro, another return.

I got my second 12 Pro today and immediatley noticed a yellow screen. Bummer.

I went to a local Apple shop and saw that my 12 Pro was similar to many of the models in the store. In fact, it was BETTER than some of them. There was a 12 Pro Max there that looked so washed out, I was flabbergasted when I compared my pro to it.

But anyway. There was ONE model in the store that stood out from the others. It looked pretty much perfect.

It is shown on the right here. 12 Pro.

My 12 pro is on the left.

View attachment 1674983


Bummed out. The difference wasnt huge, but its big enough for me to notice. The 12 Pro on the right, in the store, felt better on whites. It was subtle, but noticable.

This picture is taken with my 8, so the white balance isnt quite right. The one on the right looks a bit more purple/blue here than it did in the store.
Your photo's fine, this is a pretty good example of a normal screen vs. a yellow tinted. The right one looks perfect on my monitor, the left one a bit too yellow. Exactly like my X vs my 12 Pro in RL.
 
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ghosttrooper

macrumors regular
Jul 16, 2017
217
231
Your photo's fine, this is a pretty good example of a normal screen vs. a yellow tinted. The right one looks perfect on my monitor, the left one a bit too yellow. Exactly like my X vs my 12 Pro in RL.
Unless your monitor is calibrated, most consumer monitors are widely inaccurate.
 
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bluepr0

macrumors newbie
May 20, 2020
9
15
Spain
I asked on my local store and they got a circular from apple saying they will issue a software update, let's see if that's fixes it
 
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