Hi Jan,

On 6/26/06, Jan Ciger <[EMAIL PROTECTED]> wrote:
Just tested - current CVS checkout still hangs in Viewer::Realize()
(shows black window) if I enable SLI (both AFR and SFR mode). Ltrace
shows the application hanging on some ioctl call, most likely somewhere
in Nvidia driver.

Does the stack trace go up to a Producer call, if so which one?  I
wonder if NVidia have broken some of the GLX calls related to vsync.

I would very much like to drive SLI from the scene graph/Producer
level, with use specifying the composting of the two graphics outputs.
It wouldn't a very difficult extension to the OSG/Producer and it
would allow much better scaling in performance as we could cull
geometry and state at a much higher level.

Anyone going to Siggraph could nag Nvidia and ATI about this... tell
them to create an extensions to allow us to manage the SLI/Cross fire.

Robert.
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