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Question: Mac Mini color issues after lock

Hey folks,

so I have a Problem, when I relog into my Mac (after locking it) sometimes my two displays go yellow, the color ius just wrong, like when a VGA Cable is not plugged in all the way. When I turn the displays off and on again its fixed. I just dont know why this keeps happening and how I can fix it.

Btw, my exact gear:

Mac Mini (Late 2014)

HP27GS Displays (one connected via HDMI and one connected via DP Mini to HDMI)

Hope someone can help me, because it's really annoying!

Thanks in advance

Mac mini, macOS High Sierra (10.13.3)

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Mar 15, 2018 5:24 PM in response to BakaHubertus In response to BakaHubertus

Hi BakaHubertus!

I understand that your displays attached to your Mac mini don't look right when returning from sleep mode at times, and I'm happy to help. Please follow these instructions:

Get help with video issues on external displays connected to your Mac


Mar 15, 2018 5:24 PM

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Mar 16, 2018 12:46 AM in response to jameson.h In response to jameson.h

Hi James,

thank for providing this link, but it doesn't really solve my problem, because the issue is not a static thing. It's just sometimes after I unlock my Mac. The Display Settings are correct and the Mac is up to date.

Mar 16, 2018 12:46 AM

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Question: Mac Mini color issues after lock