https://bugs.freedesktop.org/show_bug.cgi?id=59431 --- Comment #43 from Alex Deucher --- I'm not sure how much more help I can be. I'm not really familiar with macs at all other than the fact they they are always a lot of trouble ;) Now that the efi gop stuff is sorted out, you might try removing the gfxpayload=keep from your grub config and see if that helps. -- You are receiving this mail because: You are the assignee for the bug.