mixing functions from different graphics cards? G965 + ivtv

Csillag Kristof Csillag.Kristof.ext at united-consult.hu
Thu Mar 22 03:19:11 PDT 2007


I have a weird idea, and I am not familiar enough with graphics hardware to decide
whether it's possible or not. So, the question is the following:

is it possible to use one graphics chip-set to generate image
(ie. to render OpenGl, etc), and an other chip-set to output
the image to a physical device?

To be more specific, if I add a pvr-350 to my box, then I will have
  - the integrated 965G, which has abilities, but no working tv-out, and
  - the ivtv chip on the PVR card, which has a nice tv out, but no acceleration.

I know that new cards can do all kinds of off-screen rendering, so it might not
be impossible to use one chip-set to render the stuff, and then transfer the image
to the frame-buffer of the other card.

Is this physically possible?
If yes, how can this be done? Do I have to write a special driver
to "combine" the two devices, or can this be done from user-space?

   Kristof Csillag
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