Subject: Re: help with xfree on PPC9500/200
To: Tomas D <u0giene@yahoo.com>
From: Michael <macallan18@earthlink.net>
List: port-macppc
Date: 05/23/2005 15:43:53
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Hello,

> thanks for patched kernel Michael, no luck with that one though ):=20
> I must note one thing that screen sort of blinks when I do startx so I
> guess something is happening there (;

Well, it probably tries to switch to whatever resolution you specified
in XF86Config, then something fails and it goes back.

> ofb0 at pci0 dev 13 function 0ihandle: -7494400
> : ATI Technologies Mach64 GX
> ofb0: 640 x 480, 8bpp

That's odd - the kernel includes a driver for mach64-based graphics
controllers. What you have here must be a pretty odd beast.

What exactly is in your Device section? It shouldn't contain look like
this:

Section "Device"
    Identifier  "something"
    Driver      "ati"
EndSection

The Identifier doesn't matter, it's just a name that should match the
Device entry in the Screen section. But there shouldn't be anything
besides the driver entry.

Then please send me the output of this:
pcictl pci0 dump -d 13

this will dump everything the kernel knows about the card.

Another thing you could try is to add
MemBase 0x81000000
to your Device section. This /may/ help although I doubt it.

For some reason the driver thinks your card is an ISA device - no idea
why, it gets the information from a register on the chip which either
means the chip lies ( if it's a custom-made part for Apple they probably
didn't bother with it and their driver wouldn't use it - I don't know.
In this case the driver would need to handle this sort of card specially
) or the driver doesn't read the right register ( not very likely ) - so
it doesn't pay much attention to PCI configuration. I fear I can't do
much about that without such a card to play with - you're probably
better off looking for something else.

have fun
Michael

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