xorg fails to start when using correct busids in device sections, logs included

[Jelle de Jong]

Tiago Vignatti wrote:
> Jelle de Jong escreveu:
>> Hello everybody,
>>
>> I am debugging some configuration problems i am encountering, so i made
>> an simple test xorg.conf and attached the logs.
>>
>> When an busid is provided in the device section to try separate cards
>> and/or heads xorg tells there is no matching device system for the busid
>> that is provided while the logs say correct matching busids are used.
>> Can somebody tell me what is going wrong here? I am experiencing the
>> same issue with both the intel as radeonhd drivers.
>>
>> Any help is appreciated,
> 
> http://lists.freedesktop.org/archives/xorg/2008-September/039020.html
> 

Thank you Tiago for responding,

Does this mean the only way to get an multi-card system working with
newer software is with either the old pci vga only cards or with NON
randr 1.2 compliant drivers like the close source nvidia drivers. I have
a test system here with four radeonhd based devices and I can only get
the first device to work all other devices do not work!

btw. I did try the mdm0.0.3-livecd.iso but it does not work on my system
it keeps trowing messages that the user is not authoritative or
something like that.

Thanks in advance,

Jelle