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An Nguyễn

[Solved] Dell Precision 5510 black screen after sleep

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Hi @all,

I am using dell precision 5510 - I7 6820HQ, 16GB, 512GB, 4K screen. I installed macOS 10.15.6 with open core version 0.6.0.

But I can't wake up from sleep. It has been black screen while the keyboard and power button are still active.
 

My EFI

EFI.zip

20200830_081637.jpg

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I don't have 4k display, only 1080p so no issue on my end.

Try this boot arg

igfxonln=1

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