On Monday 14 May 2007 20:00, Earle Beason wrote:
Screen 0 "Screen0" LeftOf "Screen1" Screen 1 "Screen1" LeftOf "Screen0"
This is Xinerama configuration. Xinerama, from my admittedly little experience, is quite problematic in that it has negative speed impacts and only allows acceleration on one of the two displays.
The radeon driver has MergedFB support which gets around these problems.