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No DP sound after long sleep - CoffeeLake - High Sierra 10.13.6

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After update to latest HS version I have disappearing Display Port audio in my LG 31MU97Z-B monitor after long sleep. But headphones sound still function properly, so only DisplayPort sound disappearing.

My hardware is:

CPU: Intel 8700K

GPU: integrated

MB: MSI z370m Gaming Pro AC


Monitor: LG 31MU97Z-B

My Clover folder is attached to this post.


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