NIGHT SHIFT issue on Mac Pro with 2 external monitors

I think 10.13.1 fixes this too. The GM dropped today. Upgrade and try it.

I did submit a bug report last month to Apple.

http://www.apple.com/feedback/

Hopefully, they will see it and fix it in next release. Maybe you and others could submit a bug report too, if not already done so.

Thx.

Paul

Same issues here with my Eizo monitor and an external plasma display. Calibrating with Eizo's software or X-Rite's does not work. High Sierra is just as bad. I unfortunately don't have a backup of 10.12.3, it's looking lie I may have to go back to El Capitan, which I do have an installer for.

For what it's worth, me too. However it seems that flux may be a much better option regardless, since it reduces the blue light far more: https://9to5mac.com/2017/03/28/flux-developer-says-apples-new-competitive-macos- night-shift-feature-falls-short/

Yes, it goes away when I toggle Night Shift on and off again, but it's the fact that you have to do this at all that is the problem. I'm glad to hear it's working properly for you now, that does seem to be a step in the right direction.

I've submitted two bug reports so far. I'll probably do a third for 10.13.1

Yes, the same problem suddenly started on my nMP late 2013 with two dell 2715K displays and a BenQ Projector attached.

One of the dells goes into nightshift, the other one doesnt. No way to change it. It used to work fine, now it doesnt anymore 10.13.1.

FWIW, it is possible Night Shift has a bug when one or more external monitors are used. I have it on a couple Macs but only with the internal display. Night Shift does not affect them when disabled.

You can send Apple a bug report from the feedback page.

https://www.apple.com/feedback/macos.html

They most likely won't answer but they do read all reports.

F.lux does not address the issue or provide a viable workaround, since it's independent of Night ****. The issue is that Night Shift is always enabled for some people on external monitors. --Nik

Just installed 10.13.1. With Night Shift turned off, I plugged in my external 4k monitor and watched Night Shift get turned on for my external monitor only. It's still NOT fixed.

Bummer. I'm no longer seeing it. You can toggle night shift on and off and it goes away. Have you submitted a bug report?

I have the same problem with my CF791 monitor.

I had a similar recent problem on my Mac Pro (Late 2013). I have a 40" Crossover 4K monitor connected via Display port to Mac Pro. Worked fine on 10.12.3. After update to 10.12.4, Night Shift mode was enabled after restart, but no way to turn it off via Display control panel as Night Shift control tabs not shown. I reported problem to Apple via Chat support. They suggested doing a NVRAM reset, but that made no difference. I decided to revert back to 10.12.3 from a backup I had and told Apple I'd wait until next Mac OS 10.12.x release to see if fixed. They said OK and that's where it currently stands.

Good luck with getting your system working properly or finding override fix.

Paul

Hello,

issues with nightshift here as well. My main monitor (a 2000+ Euros Eizo ColorEdge) looks like it loses calibration.

I have to manually open nightshift panel and, with this wonderfully useless feature still disabled, move the slider to one side and then reposition it at the center. After that operation, my panel goes back to its normal color.

Even if I understand the uttermost importance of following the natural flow of time and match the subtle nuances of changing light during the day, there must be a way to totally disable those features we don't need, nor want.

A Mac fan for many, many, many years, lately I'm really disappointed. If I want an iPhone OS to play with, I have my iPhone already.

Sorry for the rant and have a great day.

I have the same issue - two (unsupported) extra monitors, one of which warms up overnight with night shift turned off in display panel. Neither of the other two change. To get back to calibrated colours requires night shift to be manually turned on and off. Glad to have found someone else with the issue as recalibrating each time a nightmare scenario!

Professional monitors are regularly calibrated using expensive software, hardware and work time. I don't care if they are not supported. I don't want them to be supported.

The fact you can't completely disable Nightshift is simple, pure and inconsiderate folly.

Refer to ISO 3664:2009 "Graphic technology and photography -- Viewing conditions" for more informations.

Thank you anyway for you advice.