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Michel M

Screen artefacts at startup for few seconds

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I recently setup my hackintosh running of a 7370Pc-Pro mobo and an i5 8600K. -

I don't use a dedicated CG but my HD 630 IGPU that wome with my cpu.
My bootloater is opencore.
But i'm facing an issue :
At bootup my screen is full of artefacts (screehsot bellow) but after few seconds it come back to normal.
It seem a driver do not initialize correctly. I made some research on google and i found that this issue is called "screen gabbing" but i couldn't find any fix for my problem.

I already updated lilu and whetever green. I checked too my igpu plateforme id and my device properties.
Does someone know how to overcome this problem ?
Thank you !



Ps : in the screenshots bellow you will be able to see the before, after.



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3 hours ago, Hervé said:

Most likely an issue of high resolution or screen EDID. You could try to configure Clover to inject the latter to begin with. Use Clover Configurator app to that effect.

I'm using opencore,

how i could implement your fix using opencore ?

Edited by Michel M

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