PowerMac G4 graphics issue

[Justin Hibbits]

On Sat, 29 Mar 2014 09:38:38 -0700
Nathan Whitehorn <nwhitehorn at freebsd.org> wrote:

> On 03/29/14 09:10, Justin Hibbits wrote:
> > 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.
> >
> 
> Does scfb actually work with VT on PPC? I thought it didn't.
> -Nathan
> 

I don't know, but from what I understand it's the only option with
vt(4).

- Justin