Re: [PATCH] apple-gmux: Add support for message box interface (as found in MBP10,1/Retina MacBook Pro)

[Seth Forshee <seth.forshee@canonical.com>]

On Mon, Aug 13, 2012 at 01:21:16PM -0500, Seth Forshee wrote:
> On Mon, Aug 13, 2012 at 11:13:44AM -0700, Greg KH wrote:
> > On Mon, Aug 13, 2012 at 08:01:33PM +0200, Bernhard Froemel wrote:
> > > On 08/13/2012 07:09 PM, Seth Forshee wrote:
> > > > Matthew also made some progress with this last week, at least
> > > > enough to get the backlight working. From what I remember of
> > > > looking at his changes these look fairly similar, but I think his
> > > > implementation looked cleaner and possibly more complete.
> > > Aw.. pity; then I wasted ~8h :/ .. but I had fun anyway.  Is there
> > > another (patch) thread where this is already discussed?
> > > 
> > > >> I see that there is a lot going on concerning and related to the 
> > > >> apple-gmux currently: https://lkml.org/lkml/2012/7/9/715 
> > > >> https://lkml.org/lkml/2012/8/3/300
> > > > 
> > > > I'm slowly making progress on the graphics switching stuff. I've
> > > > got patches for vga_switcheroo and apple-gmux that make the muxing
> > > > itself work fine, the problems now all revolve around making the
> > > > graphics drivers deal with difficult behavior from Apple machines.
> > > Looking forward to it, although the essential stuff (for Intel GPU
> > > operation only) already works well for me.
> > > In case you need something tested you can always CC me!
> > 
> > So with this patch you don't have to boot to os-x to change the graphics
> > card and it works properly?
> 
> No, this one is only going to get you backlight control. There is a
> switching patch ([1], see patch 12), but based on Matthew's comments it
> sounds like i915 will need some work before graphics switching will
> work.

I should note that this patch alone won't support the gmux on the
retina, it would need to be merged with one of the patches that adds
support for that gmux.

> 
> Seth
> 
> [1] http://people.canonical.com/~sforshee/apple-gmux-patches/