On Tue, 2005-12-20 at 09:59 +0100, Unger Richard wrote:
> Wow! Sounds like a very cool project!
> 
> As for fan-less, that should be no problem. Most PCI graphics cards
> don't have Fans, even the Matrox models I've seen. I've never seen a
> Quad-head, but for a PCI card you should have no troubles replacing
> the fan with a heat sink if the card does have a little fan.

Matrox does have quad heads, but according to the Xorg ppl they only
works with the binary HAL driver, which made me assume it would not work
with DirectFB either.

> I think where you're more likely to run into trouble is PCI
> throughput:
> 
> 5120x1024x16bpp= 10MB x 15fps = 150MB/s
> 32bit PCI @ 33MHz = ~133MB/s
> 32bit PCI @ 66Mhz = ~266MB/s
> 
> The bus speeds are for the whole bus, there may be other devices than
> your gfx cards using it.
> 

That is correct, and I didn't really explain it correctly, The whole
system will be 4 monitors, but the video will only be played on 1 of
them at the time (but it must be playable on any one of the 4 monitors)
the other monitors will than display (almost) static content.

- Erwin



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