210      iPhone_iPad_Mac_apple

Fullscreen video turns pink and green in QuickT...

After upgrading my Mac mini 2012 to High Sierra, when I play any video in fullscreen in QuickTime or iTunes, the video colors skew pink and green as if the blue channel is dropped entirely. It happens immediately after I take my hand off the mouse and let the onscreen controls disappear. As soon as I move the mouse again, or if I leave the mouse over the onscreen controls to keep them active, the colors return to normal.

If I use Screen Sharing on another Mac to connect to the Mac mini, the colors return to normal as if Screen Sharing keeps the screen active in the same way that moving the mouse does.

Changing ColorSync profiles does not help. Turning off hardware acceleration or running in safe mode might help, but there is no way to do that in recent versions of QuickTime.

It does not happen in VLC or any web browser.

This seems to be a common issue; see below for links to other questions that seem to describe the same symptoms. Hopefully we can consolidate and get more attention on this.

Pink and Green full screen

Itunes 12.7 color artefact

iTunes 12.7 screen turns green

movie playback color changing

Silver hammer:

Yes diagnosed as exactly the same. In fact I was on apple care call with panda a great senior advisor.   He wanted to witness this problem and I shared my screen with him as they can access your conputer remotely.  As soon as he accessed my computer the pink or green screen disappeared.  I felt like I was imagining  it.  Another data point I have 5 Mac atv’s mappped to my iTunes and the sharing is not affected by this phenomena.   The people sharing the library do not experience the pink and green screen.  Please let me know if you figure out a solution.  

Another thought have you completed a clean install?   I tried this and then completed a time machine backup.   problem returned.  Panda the senior advisor suggested perhaps a clean install then a clean reinstallation of all programs and files.  This is an ungodly thought.   My mac mini is a late 2014 -- 1 TB fusion maximum ram etc.  

最後更新：2017-10-08 23:33:55

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