Comment 3 for bug 574386

After a lot of digging around I found a workaround for this. I changed my xorg.conf to number my screens, devices and monitors such that my top row is now 0,2,4 and my bottom row is 1,3,5. I also set monitor 0 to be at (0,0). I renumbered the devices too so that the pci slots were in ascending order.

I'm not sure exactly which changes were necessary but it all looks fine now with xinerama enabled.

The forum thread I found said that screen 0 had to be top left - and maybe that's all that was needed.

It would still be nice to see this bug fixed as setting up multi-monitor in Ubuntu with vidia cards is much harder than it ought to be. In windows this just works.

Hope this helps others.