Screen turns pink after waking from sleep

[a6a80871]

I'm running High Sierra OS 10.13.5 on my Mac Mini (2014). After a factory reset the screen wakes from sleep with a definite pink tint, which will go away after a restart. Does anyone have experience with this problem? No peripherals attached and no added apps after recovery.

 

[a6a80871]

I'm running High Sierra OS 10.13.5 on my Mac Mini (2014). After a factory reset the screen wakes from sleep with a definite pink tint, which will go away after a restart. Does anyone have experience with this problem? No peripherals attached and no added apps after recovery.

I took my Mac into the Genius Bar at the Apple Store. They told me that a number of customers have this issue and it is probably a result of the most recent upgrades to OS Sierra 10.5.15. There was nothing wrong with my Mac or the graphics card. However, they suggested that connecting the monitor through the Thunderbolt port vs. HDMI should solve it until a new upgrade addresses the problem. I tried it and it seems to work! It has something to do with the Thunderbolt keeping the monitor supplied with data even when it's asleep. With HDMI, the new OS has the monitor searching for inputs such as reds, greens and yellows (when it wakes up) and this corrupts the image temporarily. A different suggestion is to simply unplug the HDMI cord and plug it right back in, on wake-up, until the issue is rectified by Apple. Hope this helps.