I recently got from ATI Embedded, an eval kit for the M7 and M9 and these
cards have dual DVI, granted they don't fit in a PC case too well ( one
connector comes out the top of the card :-), but they are only eval boards
for embedded designers..

Dave.

On Mon, 1 Sep 2003, Alex Deucher wrote:

> Linus,
>
>  Some dell OEM radeon cards offered Dual DVI ports and I believe there
> are some other oems (tyan?) that will be offering Dual DVI cards. the
> radeon 9000s and newer only have one tdms trandsmitter built in, but an
> additional external one can be added on to drive the second DVI port.
>
> for multi-head 3D on radeon hardware, check out my mergedfb patch:
> http://bugs.xfree86.org/show_bug.cgi?id=276
>
> Unfortunately, due to a hardware limitation with the scissor registers,
> you are limited to 2048x2048 for 3D.  your framebuffer can be as large
> as 8192x8192 (limits for the 2D engine).  you can use mergedfb at
> resolutions higher than 2048x2048, however, any 3D windows larger than
> 2048x2048 will not display.
>
> Alex
>
> --- Linus Torvalds <[EMAIL PROTECTED]> wrote:
> >
> > Ok, this is pretty off-topic, but I'm wondering what the status is
> > for
> > open-source support of 3D-capable drivers for such studly monitors as
> > the
> > IBM T221.
> >
> > Yes, it's still expensive as hell, but it isn't nearly as bad as it
> > was a
> > few years ago when it was very limited availability, and cost USD
> > $20k+.
> > These days it is "only" $9k or so and apparently is actually
> > available in
> > the sales channel.
> >
> > The thing is a 3840x2400 pixel monster, and to drive it at reasonable
> > frequencies you actually need to support a quad DVI setup where it
> > looks
> > basically like four monitors running at 1920x1200. And from what I
> > can
> > gather by googling, the outputs need to be synchronized, so you
> > really
> > need to have a card like the NVidia Quadro4 XGL or similar (ie you
> > can
> > apparetly _not_ drive it with multiple separate video cards).
> >
> > Apparently it also does work with just a single DVI thing (ie reports
> > of
> > it working with the Radeon 8500 at least on macs), probably at a much
> > reduced frequency (ie a single DVI link should be able to drive the
> > thing
> > at something like 10Hz refresh rate - I think the Radeon 8500
> > supports two
> > links on its single DVI-I interface, so should get up to 20Hz?).
> >
> > The binary-only NVidia driver supports it at the full 40Hz frequency,
> > so I
> > know I can get the thing to work under Linux in case I decide to
> > waste the
> > money on it (or, preferably, convince my employer to do so ;)
> >
> > However, I was wondering if anybody knows of somebody using it with
> > proper
> > opensource drivers.. Or is just otherwise confident for some
> > technical
> > reason that it should work..
> >
> > I'd want 3D acceleration to work, but I don't care if it ends up
> > being
> > limited to smaller areas (ie if the canvas size has to be limited to
> > 2048x1536 or something, who cares?).
> >
> > Damn, but it's a drool-inducing piece of hardware.
> >
> >                     Linus
> >
> >
>
> __________________________________
> Do you Yahoo!?
> Yahoo! SiteBuilder - Free, easy-to-use web site design software
> http://sitebuilder.yahoo.com
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Dri-devel mailing list
> [EMAIL PROTECTED]
> https://lists.sourceforge.net/lists/listinfo/dri-devel
>

-- 
David Airlie, Software Engineer
http://www.skynet.ie/~airlied / [EMAIL PROTECTED]
pam_smb / Linux DECstation / Linux VAX / ILUG person



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel

Reply via email to