I have used the instructions provided by tomodachi here to get EFI kernel stub booting working properly. The Radeon card is now properly initialized and lspci is showing both graphics cards, which is ...
I have a Macbook 15" Pro 8.2 Which apparently is supposed to be switchable between the GFX cards with vgaswitcheroo. But /sys/kernel/debug/ contains no switcheroo folder. syslog gives me this. [ ...