ATI 6.7.192 Dual-Head DVI

[Alex Deucher]

On 9/26/07, Rick <palabra_up at yahoo.com> wrote:
> On 9/21/07, Rick <palabra_up at yahoo.com> 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
> > light so X is picking it up. (Prior to upgrading the
> > ATI driver my 2nd monitor would not even display, it
> > was yellow).
> >
> > xrandr -q
> > Screen 0: minimum 320 x 200, current 1280 x 1024,
> > maximum 1280 x 1200
> > DVI-1 connected 1280x1024+0+0 (normal left inverted
> > right x axis y axis) 376mm x 301mm
> >    1280x1024      60.0*+   75.0     59.9
> >    1152x864       74.8
> >    1024x768       75.1     60.0
> >    800x600        75.0     60.3
> >    640x480        75.0     60.0
> >    720x400        70.1
> > DVI-0 connected 1024x768+0+0 (normal left inverted
> > right x axis y axis) 376mm x 301mm
> >    1280x1024      60.0 +   75.0     59.9
> >    1152x864       74.8
> >    1024x768       75.1*    60.0
> >    800x600        75.0     60.3
> >    640x480        75.0     60.0
> >    720x400        70.1
> >
> > 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.  For the desktop size, add a virtual line
> to the screen
> section of your config specifying the max desktop size
> you want,
> e.g.,:
> Virtual 2304 1024
>
> Alex
>
> *****************************************************
>
> Ok that worked. I no longer get the "screen cannot be
> larger than 1280x1200" error.  The
> right monitor still does not display anything. I have
> a black screen with the green light.  Here is my
> xorg.conf file, maybe it will help:

Make sure you are using at least 6.7.194.  Older versions will not
work.  If the bios did not initialize the the external tmds chip then
you are out of luck until I finish up the external tmds init code.  I
hope to get most of that sorted out this weekend assuming I have
enough time.

Alex