PowerMac G4 graphics issue

[Nathan Whitehorn]

On 03/29/14 10:40, Justin Hibbits wrote:
> 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
>

I think until the vtd stuff Aleksandr sent around actually works, there 
are *no* options with vt(4).
-Nathan