PowerMac G4 graphics issue

[Justin Hibbits]

On Mar 29, 2014 5:42 AM, "Alexey Dokuchaev" <danfe at freebsd.org> wrote:
>
> On Sat, Mar 29, 2014 at 10:51:52AM +0000, Alexey Dokuchaev wrote:
> > I'm still not quite there [to working X11 on Mac mini G4] yet, seeing
these
> > infamous lines in the /var/log/Xorg.0.log:
> >
> >   [347050.379] (WW) xf86EnableIO 7
> >   [347050.379] (II) xf86EnableIO: ffffffff
> >   [347050.379] (WW) Can't map IO space!
> >   [347050.379] (EE) No devices detected.
> >
> > Advice about setting sysctl hw.ofwfb.relax_mmap=1 is not helpful since I
> > do not have this sysctl node.  Any clues?
>
> Looks like `relax_mmap' is defined in powerpc/ofw/ofw_syscons.c, but I've
> removed "device sc" from kernel config in favor of "device vt".  Does it
> mean that X11 + ATI card + Newcons is not supported yet?  Can it be easily
> fixed, or I have to go back to syscons(4) for now?  Thanks,
>
> ./danfe

Correct. Newcons+ofwfb+ATI in X11 doesn't work. You can try xf86-video-scfb
in ports to get X working with newcons for you, but you lose any hardware
acceleration that the ATI driver gives.

-Justin