It is definitely a bug. I think no one is working on that bug. I have looked at code, but I guess I wont be able to fix it. I have no time to study how compiz works and make necessary changes.
My pc setup is even more complicated. I have two nvidia cards with connected 4 monitors. I have two seats. One with 3 monitors/screens and second with two monitors/screens. One monitor is shared between both seats. So I have 5 screens - :0.1, :0.2, :0.3, :1.0, :1.1. I am using ubuntu 13.10 with pached nautilus, gedit, lightdm, xorg-server and unity-greeter. I have still 2 problems I would love to be resolved: 1) compiz not handling all screens. For this I am using workaround - I am starting compiz on each screen by adding new startup applications 2) https://bugs.launchpad.net/compiz/+bug/1158267 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/885989 Title: white screen on second monitor when using two xsessions To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/885989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs