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Date: Thu, 3 May 2012 11:51:55 -0700
From: Greg KH <gregkh@linuxfoundation.org>
To: Nico Schottelius <nico-linux-20120419@schottelius.org>,
        Francois Rigaut <frigaut@gmail.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: Linux Support for Thunderbolt using Apple Monitor
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On Thu, May 03, 2012 at 08:40:08PM +0200, Nico Schottelius wrote:
> Greg,
> 
> Greg KH [Thu, May 03, 2012 at 08:35:47AM -0700]:
> > [...]
> > 
> > How about if you load the acpiphp module instead?  Some BIOSes use that
> > instead of pciehp.
> > 
> > You need one of those drivers in order for this to work properly.
> > 
> > Also, speaking of BIOS, make sure you have the latest updates, there
> > were a lot of initial problems with Thunderbolt hotplug issues that were
> > fixed in newer BIOS versions, so that will be required to be updated.
> 
> I'm confused - to which BIOS are you referring to? I understood that
> Apple's Mac Book Air has its custom "similar to EFI" (*) code and not a
> traditional BIOS in place.

It's still a BIOS, and needs to be updated.  If that BIOS boots using
EFI or the "old" format is not an issue here.

> (*) Which would also be interesting to replace with something like
>     LinuxBios/Coreboot.

Good luck with that :)

greg k-h