[Bug 26891] Radeon KMS on Macs with EFI boot

[bugzilla-daemon at freedesktop.org]

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

--- Comment #3 from Jérémy Lal <kapouer at melix.org> 2011-05-16 13:27:40 PDT ---
I'm booting an imac12,2 in UEFI mode (need a "Run EFI in physical mode" patch
before doing so),
here's how :
1) boot from latest ubuntu live CD (hold alt, or c, at boot)
2) dump the bios
   dd if=/dev/mem of=vbios.bin bs=65536 skip=12 count=1
3) move it to your partition's /lib/firmware/radeon/vbios.bin
4) use your patch, but move the radeon_read_bios_from_firmware
   call before all other calls to get the bios (force using vbios.bin)

That's it and thank you :)

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