Hey,
Thanks for your reply.
Disassembled my DSDT, applied all my patches +
Added SSDT-PNLF.aml pre-builded from Rehabman's repo. No joy.
As explained in his guide containing pre-build SSDT-PNLF.aml link, I added to my config.plist, in that order, both ACPI patches: "Change PEGP to GFX0 and...