Re: XFree86 and ATI accel.
On Tue, 22 Jun 1999, Sven LUTHER wrote:
> On Mon, Jun 21, 1999 at 10:13:15PM -0700, bigj wrote:
> > > > XF86_FBDev accellerated? Or just I should give parameter in XF86Config
> > > > and/or BootX and/or fbset ? (I'm really new to Mac hardware :)
> > >
> > > You must use atyfb to get acceleration on ATI Mach64.
> > >
> >
> > Geert et al,
> > The problem is not as simple. The G3 laptops have a different kind of
> > video chip then other ATI based machines. On my laptop the chip is
> > /pci/ATY,264LT-G and even though I use fb0: (after adding my chip_id to
> > the atyfb.c) I still don't get any acceleration with X. Now if memory
>
> That is normal ...
>
> You are using atyfb, and it works fine isn't it ? what is the output of fbset
> -i when you use atyfb ? Also you said you added the identity of your chip to
> atyfb.c, but the Xserver has to be aware of that also.
What's the ID of that chip?
> Atyfb should set a var.accel flag, that is the one the Xserver recognizes.
> actually i think the following are supported for mach64 chips :
>
> FB_ACCEL_ATI_MACH64CT
> FB_ACCEL_ATI_MACH64VT
> FB_ACCEL_ATI_MACH64GT
>
> i guess you should add a
>
> FB_ACCEL_ATI_MACH64LT flag, but this should first be fixed in atyfb, and once
> that is done, send it to me, and i will update the Xserver accordyingly, or
> maybe someone else can do it, because my partition were i was keeping X stuff
> has some kind of problems recently.
I don't think we need a special ID for the 264LT-G. The 264LT-G is either a VT
or a GT class chip (RAGE PRO LT is GT class).
Greetings,
Geert
--
Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP} http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium
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