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I have a MacBook Pro Touch 2017. A few days ago, I noticed that the display seems to have started to have a very faint warm/reddish tint, but I can tell the difference nonetheless. The greys aren't "cool grey" anymore, but more like "red grey", and the whites are sort of "faint pink-white".

I really started noticing this because once after startup of macOS, the display was first "cool/bright" (what I would describe as normal), but perhaps 30 seconds after entry to the OS/Desktop, the whole screen switched to the red tint. This "alteration" doesn't happen every time starting the computer, but quite regularly. When comparing the display to that of a MacBook Pro 2013, it is clearly bluer/cooler in its display.

Note that the displays aren't calibrated beyond the factory calibration and default profiles. The issue occurs regardless of any external displays being connected. This is not related to True Tone, Night Shift or anything like that.

Question: Besides that the tint is bugging me a little, I'm wondering if the reddish tint is related to some sort of graphics problem. I dropped the MacBook a few days ago, and while I didn't immediately associate the change in tint color, it did happen around the same few days. I'm not sure if dropping the Mac could lead to this sort of "graphical change" of the whole display, but would like to know if that's a possibility before ruling it out.

  • The MPB is a physical object with components wedged very, very tightly inside. I've seen MBAs and MBPs take a licking and keep on ticking, but a fall is a fall, and things sometimes completely or incompletely fail. – IconDaemon Apr 8 '18 at 13:32
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    I also have this issue. It started happening randomly and now seems to always stay in this reddish tint. Did you ever found what was the cause? – lm2s May 22 '18 at 8:34
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    Haven't found a solution yet, but will attempt to look at this again now. There has been a lot of similar reports that I didn't know about, which validates my concern. forums.macrumors.com/threads/… and discussions.apple.com/thread/8380916 – Winterflags May 26 '18 at 8:19
  • I have the exact same situation, I would be working on a word document and I will notice the slightest shift to a warm colour. If you want to know what I or OP is talking a bout go to Preferences>Displays>Night Shift. Move the Colour Temperature Slider all the way to the left and click it. The screen will change to a warm colour to preview the selection. This is what I would use to describe the situation. Notice the gradual change from previewing and not previewing. The colour change is so subtle but noticeable. Hope someone finds an answer as I do not expect autonomous behaviour from my displ – Aaron Jun 9 '18 at 17:56
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    This doesn't really answer your question, but I found turning off True Tone in Display preferences got rid of the red/pink cast on my 2018 MacBook Pro. – Sam Dutton Dec 14 '18 at 19:15
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I handed in my computer with the problem to an authorized service shop. At first they didn't recognize the error, but after some further convincing from my part they claim to have spoken with Apple about it.

Apparently, the problem with warm hue is a software bug introduced in one of most recent versions of MacOS High Sierra (spring 2018), and it afflicts various Mac models. They claim that Apple is aware of the problem, and a fix will applied in an upcoming MacOS patch.

Status: As of MacOS Mojave 10.14 (2018-10-27), Apple seems not to have applied a fix, as the problem persists.

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It sounds like you have Night Shift on. It tints all of your screens colors to be easier on the eyes.

System Preferences > Displays > Night Shift > Schedule > Off

Try that and see what happens. If that's it, you might want to turn it back on and set a schedule that works better for you.

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    Thanks for the suggestion – it's not Night Shift that's causing this (unless it's stuck somehow and the white point needs to be reset via some Terminal command). I have turned off Night Shift. – Winterflags Apr 8 '18 at 10:46
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    @Winterflags - did you actually turn Nightshift on then turn it off, or are you merely reporting its status as being off? Sometimes you can fix a stuck .plist setting (if this is a Nightshift setting) by doing a toggle. – IconDaemon Apr 8 '18 at 13:28
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    @IconDaemon I have toggled it on/off and moved the slider from min–max–default. – Winterflags Apr 8 '18 at 13:29
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    happening on my mac (same model) and I checked - night mode is off. It just occurs randomly many times (no count) in a day. – Noman Rafique Jul 3 '18 at 11:45

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protected by bmike Jun 10 '18 at 3:49

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