Using 2 AMD gpus to power 3 monitors, when I enable Xinerama and reboot Unity doesn't open.
I am using the 12.11 beta drivers from ATI and 12.10 version of Ubuntu.
Here is a log using the Unity --reset command.
The log mentions several files it can't find and ends with:
compiz (core) - Fatal: No composite extension
I've tried using KDE and Gnome Classic and Xinerama is working well there. However using Compwiz --reset in those Window Manager results in the same compiz (core) - Fatal: No composite extension error. So that can't be why Xinerama isn't working, right?
Any help here would be appreciated. Multi monitor support is crucial :(