Thank you for your fast answer about Xv and the riva 128.
I am gonna try first the Xshm method before buying a new board...
Can you help me with the MTRR setting, and the FB device?

The X log file gives me the following informations:
-  Linear Framebuffer at 0xE6000000
-  MMIO Registers at  0xE4000000
 - Video RAM 4096 kb

So i set up the MTRR with the Framebuffer adress. It doesn't improve
anything. Do i have to set up the MTRR with the MMIO Registers adress
instead, and if so what should be the size of the memory allocation?

I am also a bit confused by the framebuffer device provided by X? Will
it speed up things if i use it? And how to do so?

Regards, Sebastien.
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