https://bugs.freedesktop.org/show_bug.cgi?id=26891

--- Comment #24 from David L. equinox-freedesktopbugs@diac24.net 2012-08-03 17:12:52 UTC --- (In reply to comment #23)

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.

Should this already work on 3.4.7 and should I file a separate report about ACPI VFCT being broken or is that future tense/upcoming?

Also, in hybrid boot mode at least, acpidump gives me no hits for VFCT (just tried acpidump | grep VFCT, that should show something shouldn't it?) Will try under native UEFI in a minute...