iMac / ATI Rage 128 Pro TR

iMac / ATI Rage 128 Pro TR

[David Given]

We've just replaced our elderly PowerMac 8200/120 with a nice iMac. Ten times
the memory, five times the processor speed, twenty times the disk space, and
a tiny fraction of the grief.

Unfortunately, it uses a rather odd video card, a Rage Pro TR (id 1002.5452).
The kernel does not support this, so I'm stuck with the Open Firmware driver
at 800x600x8. I've tried modifying the kernel so that it's treated as any
other Rage Pro, but the kernel seg faults.

Now, the reason why I'm posting here is that the Debian kernel I originally
booted from *did* support it. It claimed to be 2.2.0-pmac. Does anyone know
if an equivalent patch is available for a 2.4-series kernel (which we have to
use for development reasons)? Alternatively, is there anywhere I haven't
found yet that I should be looking?

(Oh, yes. And does anyone know how to work out what revision an iMac is? It's
dark blue with a CDROM, if that's any help.)

--
David Given
dg@tao-group.com

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: iMac / ATI Rage 128 Pro TR

[Benjamin Herrenschmidt]

>We've just replaced our elderly PowerMac 8200/120 with a nice iMac. Ten times
>the memory, five times the processor speed, twenty times the disk space, and
>a tiny fraction of the grief.
>
>Unfortunately, it uses a rather odd video card, a Rage Pro TR (id 1002.5452).
>The kernel does not support this, so I'm stuck with the Open Firmware driver
>at 800x600x8. I've tried modifying the kernel so that it's treated as any
>other Rage Pro, but the kernel seg faults.
>
>Now, the reason why I'm posting here is that the Debian kernel I originally
>booted from *did* support it. It claimed to be 2.2.0-pmac. Does anyone know
>if an equivalent patch is available for a 2.4-series kernel (which we have to
>use for development reasons)? Alternatively, is there anywhere I haven't
>found yet that I should be looking?
>
>(Oh, yes. And does anyone know how to work out what revision an iMac is? It's
>dark blue with a CDROM, if that's any help.)

Are you sure this isn't a Rage 128 Pro ? It's driven by aty128fb

Ben.


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Re: iMac / ATI Rage 128 Pro TR

[David Given]

On Friday 14 December 2001 13:26, Benjamin Herrenschmidt wrote:
[...]
> >Unfortunately, it uses a rather odd video card, a Rage Pro TR (id
> > 1002.5452). The kernel does not support this, so I'm stuck with the Open
> > Firmware driver at 800x600x8. I've tried modifying the kernel so that
> > it's treated as any other Rage Pro, but the kernel seg faults.
[...]
> Are you sure this isn't a Rage 128 Pro ? It's driven by aty128fb

It is a Rage 128 Pro, but a variant that aty128fb doesn't know about; the PCI
ID isn't even defined in the kernel. I tried adding it but it didn't work, so
presumably it's doing something rather different to the ordinary Rage 128
Pros.

--
David Given
dg@tao-group.com

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/