On Wed, Aug 13, 2003 at 02:39:41PM +1000, Jan Schmidt wrote: > <quote who="Jeff Waugh"> > > > <quote who="Jan Schmidt"> > > > > > There were some patches on the dri-devel mailing list recently to have 3D > > > work across both desktops on dual-output cards like this. Last time I saw > > > them, they worked, with wrinkles. It may appear in the DRI trunk sometime > > > soon, or not. > > > > On G400-and-similar chipsets? That would basically mean software 3d on the > > second head (ughily slow), as they can't do hardware accelerated 2d or 3d at > > all. Some other dual head cards are basically two separate video chipsets > > and outputs on the one card, so they should be fine. > > > > No idea, I just remember seeing a discussion of using a single large > framebuffer for both viewports and then setting up the card to send a > portion out each interface, so you would get the same hardware acceleration > on both screens. It only worked for cards with 2 outputs, i.e. not multiple > cards, and I can't remember which cards they were talking about.
This is the way that nvidia is set up. They can overlap partially or completely. cheers, Woody -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
