problems with ati 9600 xinerama
Alex Deucher
alexdeucher at gmail.com
Sun Nov 28 09:21:06 PST 2004
On Sun, 28 Nov 2004 10:22:54 +0100, Matthieu Herrb
<matthieu.herrb at laas.fr> wrote:
> Chuck Mead wrote:
>
>
>
> > I finally gave up on classic ximerama with this card and with
> > the help of a user on freenode:#xorg I got the desktop I had been
> > wanting using this config:
> >
> > Section "Device"
> > Identifier "Videocard0"
> > Driver "radeon"
> > VendorName "ATI"
> > BoardName "ATI Radeon 9600"
> > BusID "PCI:1:0:0"
> > Option "MergedFB" "True"
> > Option "CRT2HSync" "30-70"
> > Option "CRT2VRefresh" "50-160"
> > Option "MonitorLayout" "CRT,CRT"
> > Option "OverlayOnCRTC2" "true"
> > Option "MetaModes" "1280x1024-1280x1024"
> > Option "CRT2Position" "RightOf"
> > EndSection
> >
>
> Though, it may be interesting to understand why "traditional" dual-head
> doesn't work anymore with radeons.
>
> I have a 9200 which also seem to only be able to use mergedfb with
> X.Org, and I've one report of a OpenBSD user who was using traditional
> multi-head on XFree86 4.4 with a radeon 7000, but cannot get it working
> with X.Org 6.8.1.
>
traditional multi-head should work as well. It does on all my
mult-head radeon cards. for it to work you will need two devices
sections with the same pci id and one with screen 0 and one with
screen 1. monitor detection has regressed on some systems in 6.8.x
and can be fixed with this patch:
https://bugs.freedesktop.org/show_bug.cgi?id=1559
Without that patch, you can force the outputs to what you want using
the Monitorlayout option in the screen 0 device config section of your
xorg.conf:
Option "MonitorLayout" "CRT, CRT"
Alex
> --
> Matthieu
>
>
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