On Fri, 19 Oct 2001, Brian J. Murrell wrote: > I have a Matrox G400 (dual head). I want to be able to run two > separate X-server instances, one per head. Is it possible? How about > running an X-server on the first head and a frame-buffer on the > second? Somehow I doubt the latter even more than the former.
You need something at the kernel level (fbdev or dri are obvious thoughts) to stop 2 user processes (such as the X server) from fighting over the hardware. DRI doesn't split the dual head into 2 separate heads. The most likely possibility is the (linux) kernel frame-buffer driver. I've never tried it but the linux kernel has an option for dual head on Matrox cards; if that makes the card appear as something like /dev/fbdev0 and /dev/fbdev1, there is an X server driver (possibly fbdev) which should be able to run on one of these devices. If it works, this would effectively give you 2 separate cards. You then need to consider something like http://cambuca.ldhs.cetuc.puc-rio.br/multiuser/ in order to get a different keyboard working on each head. I assume that you don't want to use VT switching to get one keyboard onto both servers. -- Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge [EMAIL PROTECTED] http://www.dpmms.cam.ac.uk/~werdna _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
