Date: Thu, 14 Aug 2008 20:43:42 +0200 From: Roland Smith <rsmith@xs4all.nl> To: Jim <stapleton.41@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: ATi & Intel graphics Message-ID: <20080814184342.GA51407@slackbox.xs4all.nl> In-Reply-To: <80f4f2b20808141103p2cd9f504gf3936904d47f7732@mail.gmail.com> References: <80f4f2b20808130917k2ddc8a3aj54edd9fe79c83788@mail.gmail.com> <20080813193446.GB11361@slackbox.xs4all.nl> <80f4f2b20808141103p2cd9f504gf3936904d47f7732@mail.gmail.com>
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On Thu, Aug 14, 2008 at 02:03:38PM -0400, Jim wrote:
> On Wed, Aug 13, 2008 at 3:34 PM, Roland Smith <rsmith@xs4all.nl> wrote:
>=20
> > The last ATI chip with full open-source 3D accelleration support is the
> > 2950 (RV280), but 3D and accelleration support for newer chips is
> > actively being worked on. ATI is even going to provide the developers
> > with documentation (could be that that has happened by now?).
>=20
> Last I heard they got the documentation for card initialization and (I
> think) power management. No acceleration docs yet. It still came to
> over 900 pages. Hopefully there's been more since.
Looking over the articles on the phoronix website it seems that
accelleration on the R300 is supported, R5xx is shaping up and R6xx has
just started but needs extra docs.
The DRM driver in FreeBSD also needs updating, which is in the works,
see other posts.
> > The driver that you want for ATI cards is xf86-video-ati. But for the
> > most features you'll have to compile it yourself from the code in a git
> > repository. You'll probably need an updated DRM driver as well.
>=20
> ok, it looks like the radeon (no HD) driver is part of the
> xf86-video-ati driver, and by the size of the ati_drv.so file, I'm
> guessing most of what ati_drv.so does is access and control the access
> of radeon_drv, correct?
Not sure, but I guess so.
=20
> I wonder why there's no cutoff for the 3D functionality in the ATi
> driver's man page. It just lists all supported cards without mention
> of which have 3D implementations (try `man radeon`).
It could be more clear. Maybe you can submit a bug report or a patch?
But further down it says:
Option "RenderAccel" "boolean"
Enables or disables hardware Render acceleration. This dri=
ver
does not support component alpha (subpixel) rendering. It=
is
only supported on Radeon series up to and including 9=
200
(9500/9700 and newer unsupported). The default is to ena=
ble
Render acceleration.
For the record, my Radeon HD 3450 (RV620) works, but without accelleration=
at
the moment.
Roland
--=20
R.F.Smith http://www.xs4all.nl/~rsmith/
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