Note the "(WW) NVIDIA: No matching Device section for instance (BusID PCI:4:0:0) found" -- that's when X tries to match Device sections with the hardware it found.
** Attachment added: "My X.org log" http://librarian.launchpad.net/4244753/Xorg.0.log ** Description changed: Binary package hint: xserver-xorg I have two PCI Express nVidia cards, a 7900GT with one LCD, and a 6800GT with two CRTs. There's a bug in X config parser that prevents it from - using the second CRT. + using the second CRT. I'm using Edgy, but this has been broken since + XFree86. -- X can't handle two dual-head nvidia cards https://launchpad.net/bugs/60180 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs