<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#ffffff"> On 09/14/2009 09:31 AM, Tippett, Matthew wrote: <blockquote cite="mid:FFAE0590FF35E441901B67BD8BA62E950245AD70@storexmb3.amd.com" type="cite"> Hi. I'll talk about the generic RANDR and Xinerama situation. I'll leave other domain experts fill in any NV specifics. RANDR currently allows both static and dynamic configuration of position and rotation for 'individual' head mode. This doesn't matter how many GPUs or heads you have. You don't have the 'unified desktop' experience and can't move the windows between heads. If you have a randr capable setup and only one head (multiple outputs) per GPU, you can have a '2+1' config. For Xinerama mode, you can statically configure randr modes through xorg.conf. The randr extension is turned off when xinerama is enabled. So it really depends what you want to do. If your intent is to use one screen with near static (and immovable content) like a mailer or something similar, the non-xinerama mode may do what you need. Although there has historically been talk of deprecating Xinerama, it is currently the only way to configure multiple cards into a single desktop. If you checkout the recent phoronix articles, you can see that 24 displays are possible. (The video is 4 head with static randr without xinerama, but the same as a single head with static randr xinerama can achieve the same thing). Regards... Matthew </blockquote> <tt>That actually helps greatly, it's pretty much what I've been figuring out through trial and error - but it helps to hear it outright. I've noticed there seems to be no word on when Xinerama will be deprecated and what will replace that functionality. I guess it's something I'll have to keep an eye on... Thanks again Daniel</tt> </body> </html>