I only get those errors when I implement the graphic card into the config.
I haven't patched the dsdt yet because it gave me only errors in maciasl and mactition's dsdt also didn't worked for me.
Thank you mactition :) Now it boots, but very very slowly and I have the same graphic bugs as before (before the implementation of the graphic card into the config.plist).
And the graphic performance is very poor.
I looked up why it starts so slowly:
ACPI Exception: AE_BAD_PARAMETER, ACPI...
Hello Guy, I am very new to the Mackintosh topic :D
I also have the HP Probook G4 with only the Intel HD 620.
Evertime I want to "install" the HD 620 config.plist I fail. I used RehabMan's and mactiton's plist. Clover doesn't shows the hard drive to boot. Then I have reset the whole thing :/...