On Thu, 5 Jun 1997 21:06:25 +0900 (JST),
Mark Andres <mark@ratbert.aisol.net> wrote:
> The dormouse kernel works with Quadra/Centris Macs **that have nubus video
> cards**.  So you can try the color kit and it *might* work.  The most
> important thing is if the kernel is setting grf0 at bootup.  It you do a
> 'dmesg', you should see some lines where it says
> 
>   macvid0 at nubus0: <your video card here>
>   grf0 at macvid0
> 
> There may be some lines in between.  If the dormouse kernel recognizes
> your video card, there is a good chance it will work.

Right.  If the grf driver succeeds in initialization of the card, it's
likely that it will succeed in changing modes, setting color palette,
etc. that are necessary for color X server to do its thing.

Please remember, folks.  The color X server does not decide whether or
not it will run on a particular machine (and a particular video card).
It is not the server's responsibility to implement some low-level
video functions for any video card.  Instead, it is the grf driver's
responsibility.  So, if some version of the colorized grf driver works
ok on a particular configuration, the color X server will run on that
configuration.  If not, it will not.

> It did not recognize my Toby buffer frame video card when I tried it
> on my Centris 650.

This may indicate there is still some problem in NuBus interrupt
handling on Quadra/Centris class machines...  IIRC, the Toby card
does work with your IIc* and color grf driver/X server, doesn't it?

Ken