R128 Dualhead: WORKING!

[Alex Deucher]

On Fri, 12 Nov 2004 15:42:24 +1100, Benjamin Herrenschmidt
<benh at kernel.crashing.org> wrote:
> On Sun, 2004-11-07 at 18:34 -0500, Alex Deucher wrote:
> 
> 
> > On Sun, 7 Nov 2004 16:53:52 -0600, Ryan Underwood
> > <nemesis-lists at icequake.net> wrote:
> > >
> > > On Sun, Nov 07, 2004 at 03:25:06AM -0500, Alex Deucher wrote:
> > > > I finally got dualhead working on r128.  It still needs some cleanup
> > > > and there are a few bugs I haven't worked out yet:
> > >
> > > Do you know of any AGP/PCI dualhead r128 cards?  I noticed on the rage
> > > maxx that there is a location for a secondary connector, but I can't
> > > find an instance of the card that actually has two heads.
> > >
> >
> > I know m3/m4 chips from laptops have two crtcs, but I don't know about
> > the desktop chips.  Sony and a few other oems made desktop PCs with a
> > dfp and crt connector, however I'm not sure they actually have two
> > controllers or not.
> 
> Some Mac r128 cards had DFP & CRT too

Do you know what their pci ids are or if they have two display
controllers or not?  Do they support dualhead in MacOS? Also, any
ideas on R128SwitchMode()'s weird behavior on crtc2?

Thanks,

Alex

> 
> Ben.
> 
>