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Occasional black screen at boot up.

Joined
May 15, 2019
Messages
9
Motherboard
Gigabyte GA-Z170N-WIFI
CPU
i7-6700K
Graphics
HD 530
Mobile Phone
iOS
For no apparent reason sometimes when I press the power button after I've shut down the PC overnight the screen won't wake to the HDMI signal from the CPU and the screen stays powered down and black.
Only after I long press the power button to force shut down the PC and then power it back on the HDMI signal goes through and everything works fine.

Seems like its something to do with clover because a cold power up finds the HDMI signal normally but only if I shut down the PC after it was already booted and running macOS then the issue occurs.
How can I fix this?
 
Joined
May 20, 2019
Messages
1
Motherboard
xiaoxin 700
CPU
i7-6700HQ
Graphics
HD 530
I have the same problem as you! Still looking for solutions
 
Joined
May 15, 2019
Messages
9
Motherboard
Gigabyte GA-Z170N-WIFI
CPU
i7-6700K
Graphics
HD 530
Mobile Phone
iOS
I have the same problem as you! Still looking for solutions
As of now the problem doesn't seem to be occurring anymore after I made a custom SSDT for USB.
I assume it might had something to do with the USB mouse or keyboard causing a kernel panic but I'm not sure because it happened a couple of times when the PC went to sleep and when I moved the mouse it would crash and reboot.
I disabled the sleep function just as personal preference and the random fails to start up are yet to be seen.
 
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