I'm also seeing this error. I'm using the nvidia-glx-new driver. I've run gnome-settings-daemon with the --sync option under gdb as specified in the text of the error message and attached the backtrace.
I tried to install Bryce's .deb file but got an error since a newer version has been released. ** Attachment added: "gnome-settings-daemon backtrace.txt" http://launchpadlibrarian.net/12687966/gnome-settings-daemon%20backtrace.txt -- error starting GNOME Settings Daemon https://bugs.launchpad.net/bugs/199960 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs