ATI 6.7.192 Dual-Head DVI

Bryce Harrington bryce at
Sat Sep 22 11:18:54 PDT 2007

On Fri, Sep 21, 2007 at 06:12:58PM -0400, Alex Deucher wrote:
> On 9/21/07, Rick <palabra_up at> wrote:
> > I just upgraded to X7.3.  Since FBMERGED no longer
> > works I am trying to get my dual head Radeon X600 card
> > to display on both monitors again. I have already
> > setup the 6.7.192 ATI driver. My second monitor DVI-0
> > is just displaying a black screen. I have a green
> >
> > xrandr --output DVI-0 --right-of DVI-1
> > xrandr: screen cannot be larger than 1280x1200
> > (desired size 2304x1024)
> >
> > How can I resolve this?
> For dual DVI cards you'll need to use the most recent driver from ati
> git master.

Should dual cards work?

In experimenting with -ati's xrandr, I could get dual screen working
with one card, but triple head with two cards doesn't seem to work (lots
of screen corruption).

Also, is Xinerama mode on -ati now deprecated, or is there a way to turn
off xrandr to use Xinerama?


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