https://bugs.freedesktop.org/show_bug.cgi?id=26891
--- Comment #23 from Alex Deucher agd5f@yahoo.com 2012-08-03 16:33:04 UTC --- On UEFI systems the vbios should be accessible via the ACPI VFCT. See the bottom of atombios.h for struct definitions. Macs do their own thing so I don't know if this will work on them or not.
dri-devel@lists.freedesktop.org