[Bug 26891] Radeon KMS fails with inaccessible AtomBIOS on systems with (U)EFI boot

[bugzilla-daemon at freedesktop.org]

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

--- Comment #39 from Austin Lund <austin.lund at gmail.com> 2012-09-16 22:19:23 UTC ---
(In reply to comment #38)
> Created attachment 67258 [details]
> dmesg output from failing loading of radeon driver in 3.6.0_rc3
> 
> I tried with kernel 3.6.0_rc3 (using the Gentoo Linux ebuild
> sys-kernel/git-sources-3.6_rc3) but that doesn't change anything...
> Maybe someone can use the attached dmesg log for some useful information.
> (This is without using any changes to GRUB, but when I load vbios.bin and
> int10.bin the behaviour doesn't change)

>From what I've been told, you need to boot using the EFI stub method and not a
boot-loader.  Also, you may need to pass some kernel options (eg initrd) so the
easiest way to do this is from within an EFI shell.

How are you booting the kernel?

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