Originally posted by DuSTman
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Proof Of Concept: Open-Source Multi-GPU Rendering!
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Originally posted by bridgman View PostThis is more like the Matrox M3D, I think.
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Originally posted by d2globalinc View PostHow about we get linux to support rendering with multiple GPU's across multiple monitors and not just a single monitor? The multiple monitor state of linux is junk. It's been broken with Ubuntu since hardy and the only way to get it to render multiple monitors with composite across multiple video cards is to use a hack for Xserver-XGL which has been retired a long time ago as well..
What ever happend to XrandR 1.3+ supporting this? :S
Sigh...
Unless something ha changed in the latest distributions, but as of Ubuntu Karmic - this is all still broken and not working.. Something that only takes a minute to configure on windows after you download the latest drivers..
- D2G
Dave.
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Originally posted by bridgman View PostI thought 3dfx used a pass-through cable and just switched between the 2D card's video out and the video from its 3d-only framebuffer.
Mac graphics (Radius TV among others) were doing this long before 3dfx or Matrox, BTW.
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Originally posted by d2globalinc View PostHow about we get linux to support rendering with multiple GPU's across multiple monitors and not just a single monitor? The multiple monitor state of linux is junk. It's been broken with Ubuntu since hardy and the only way to get it to render multiple monitors with composite across multiple video cards is to use a hack for Xserver-XGL which has been retired a long time ago as well..
What ever happend to XrandR 1.3+ supporting this? :S
Sigh...
Unless something ha changed in the latest distributions, but as of Ubuntu Karmic - this is all still broken and not working.. Something that only takes a minute to configure on windows after you download the latest drivers..
- D2G
ATI's new cards support >2 screens as well with RANDR too.
Unfortunately, it isn't so much the drivers are fundamentally broken, but the userland. When I was playing with the 6 display cards, I would have a single desktop using RANDR. Yes, compiz would work, but when you rotate the cube or similar, the assumptions about what the different display information means (RANDR, Xinerama extensions, etc) would get misinterpreted and make the experience less than ideal. In theory, you could switch of RANDR and the XINERAMA extension and find that compiz would treat it like one big screen - but you then lose the ability to dynamically resize screens with RANDR or get poor window placement with Xinerama.
It's just a use-case that the Desktop Environments don't really consider.
Matthew
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