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Date:      Fri, 17 Oct 2008 03:46:50 +1100
From:      Horst =?ISO-8859-1?Q?G=FCnther?= Burkhardt III <horst@sxemacs.org>
To:        Nathan Whitehorn <nwhitehorn@freebsd.org>
Cc:        FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
Subject:   Re: [Fwd: X hassles - "Device not found"]
Message-ID:  <1224175610.10591.30.camel@horst-tla>
In-Reply-To: <48F75AD0.2000304@freebsd.org>
References:  <1224067336.10591.17.camel@horst-tla> <48F5E51B.7020207@freebsd.org> <1224170091.10591.25.camel@horst-tla> <48F75AD0.2000304@freebsd.org>

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On Thu, 2008-10-16 at 10:16 -0500, Nathan Whitehorn wrote:
> Horst G=C3=BCnther Burkhardt III wrote:
> > On Wed, 2008-10-15 at 06:42 -0600, Peter Grehan wrote:
> >> Hi Horst,
> >>
> >>> (WW) xf86EnableIO 5
> >>> (II) xf86EnableIO: ffffffff
> >>> (WW) Can't map IO space!
> >>   Try a 'sysctl hw.ofwfb.relax_mmap=3D1' before starting X. The Xorg A=
TI=20
> >> driver attempts to mmap more memory than the card reports, and the OFW=
=20
> >> syscons driver thinks this is an error.
> >>
> >>   However, since X hasn't fixed this in years now, it's probably time =
to=20
> >> remove the check since every user trips up on it :(
> >=20
> > sysctl trick worked.
> >=20
> > Next problem is "fbdevhw".
> >=20
> > Error log:=20
> >=20
> > (EE) R128: Failed to load module "fbdevhw" (module does not exist, 0)
> > (EE) Screen(s) found, but none have a usable configuration.
>=20
> There is a configuration knob in the xorg.conf file you need to set:
>   Option     "UseFBDev"                   "off"

Cheers. Now to deal with the fact that i get a black screen where I
should be seeing twm, and the fact that after hitting C-M-BS I don't get
my syscons back. :( Is there no winning? :)

(Do I have to install twm too? (also the led on the monitor isn't doing
anything weird that would indicate out-of-range so i have no clue of the
bug)

> > Also, is there a way to make 'sysctl hw.ofwfb.relax_mmap=3D1' happen on
> > startup, or be the default state?
>=20
> See sysctl.conf(5).

Okay, i'll check that when i boot up again, I had to force power down in
a moment of lack of clarity of mind.=20

> > (Further question, anyone had luck getting ACPI Suspend or display slee=
p
> > to work with macs?)
>=20
> There is no suspend support on macs, and may never be. We could probably=20
> at least add cpufreq support, though. DPMS (display sleep) should work fi=
ne.

I don't know how display sleep works - any pointers at docs would be
appreciated. I don't like the idea of my 17" trinitron sitting there
acquiring burn-in of console text, even though it would be AWESOME.

I don't need suspend support so much - I'm fine leaving boxes running
for days, weeks, months at a time. :)

Thanks very much.

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