[Bug 13170] Macbook 5,2 only boots with acpi=off, or nosmp, or maxcpus=1

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=13170





--- Comment #62 from Gregory Bellier <dest@gatekeeper.fr>  2011-04-06 12:55:00 ---
I now have newer informations.

I've been able to boot on Ubuntu 10.10 64 bits with Grub-EFI and Nouveau
involved but it needs a 2.6.38.2 (at least, it's the one I have tested). I
couldn't make it work with the 2.6.35.

I now have 2 cores.

If you want to stick with the 2.6.35, I've been able to have the 2 cores but
with the Nvidia Binary. And with this latter, to change the brightness is a
pain.

To sum up :

refit + grub-pc + nouveau => works if maxcpus=1 as a grub option.
refit + grub-efi + nouveau => doesn't work. Can't fully boot.
refit + grub-efi + nvidia binary => works and you have 2 cores, 3D and compiz
effect but it's a real pain to change the brightness plus it's a blob.
refit + grub-efi + nouveau WITH a kernel at least 2.6.38 => works like a charm
: 2 cores, 2D and you can change easily the brightness

I hope this can help some of you.

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