I have the same problem after upgrade to Gutsy. If I don't stop Xgl with ~/.config/xserver-xgl/disable I always get "You don't appear to be using the NVIDIA X driver. Please edit your X configuration file (just run 'nvidia-xconfig' as root), and restart the X server." and I'm not able to set correctly 2 monitors.
I have Geforce GO 7400 and use "new" driver. ** Attachment added: "xorg.conf" http://launchpadlibrarian.net/10278254/xorg.conf -- nvidia dual head twinview (pseudo-xinerama): gnome-panel and maximized windows span both heads on first login https://bugs.launchpad.net/bugs/139313 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs