Why do ATI 4670 mobility cards not work in Snow Leopard?

[rbcn]

I am new to the mac world, but not new to unix

I am just wondering, why it is impossible to run 4670 mobility cards at full resolution?

Even some Imacs were delivered with this card an they work like a charm. So why does nobody have a solution?

Everything in my Dell XPS 1645 works, except the ATI card.

 

Maybe someone could explain this.

rbcn

 

Sorry for my bad english

[Alessandro17]

I have an explanation. Unlike Linux and other *nix, OS X was not created to support PCs, it was created to support Macs only. Thus only a limited number of hardware will work (often thanks to our devs).

[emely]

I may have explanation for that. Most manufacture use lvds or something like this to pass video from graphic chip to laptop screen, but apple being apple uses displayport , so not compatible with lvds. so all with ati mobility radeon are out of luck until someone writes a driver for that.

[rbcn]

I have an explanation. Unlike Linux and other *nix, OS X was not created to support PCs, it was created to support Macs only. Thus only a limited number of hardware will work (often thanks to our devs).

Ok, I am a newbie, but not such a newbie.

 

I may have explanation for that. Most manufacture use lvds or something like this to pass video from graphic chip to laptop screen, but apple being apple uses displayport , so not compatible with lvds. so all with ati mobility radeon are out of luck until someone writes a driver for that.

Thanks, thats an interesting point.

So would it be possible to run an external graphics card, for example in ViDock 3 by villageinstruments? This will not work with the internal display, but would this work with an external monitor? Does anyone have any experiences?

 

RbCN