I can confirm this behavior. I just upgraded my system from jaunty to karmic, and I found that gnome-settings-daemon would not start when running a free-nx session. However, g-s-d started properly when I started a normal gnome session (no free-nx). Then I disabled the xrandr plug-in, and g-s-d was able to start in a free-nx session.
-- The program 'gnome-settings-daemon' received an X Window System error. During on a FreeNX server suring a session. The crash does not happen when xrandr plugin is disabled. https://bugs.launchpad.net/bugs/454487 You received this bug notification because you are a member of FreeNX Team, which is the registrant for FreeNX Server. Status in FreeNX open source NX Server: New Status in Gnome Settings Daemon: New Status in “libxrandr” package in Ubuntu: New Bug description: I just installed karmic on my freenx server machine when g-s-d starts it throws the following error: gnome-settings-daemon Xlib: extension "Generic Event Extension" missing on display ":1000.0". Xlib: extension "Generic Event Extension" missing on display ":1000.0". Xlib: extension "Generic Event Extension" missing on display ":1000.0". Xlib: extension "Generic Event Extension" missing on display ":1000.0". Xlib: extension "Generic Event Extension" missing on display ":1000.0". The program 'gnome-settings-daemon' received an X Window System error. This probably reflects a bug in the program. The error was 'BadRequest (invalid request code or no such operation)'. (Details: serial 105 error_code 1 request_code 150 minor_code 8) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) If I disable the xrandr plugin then the bug is not present (once bug 409621 is fixed). This is a regression from Jaunty where the xrandr plugin worked. I attach the the stack trace. If there is anything else I can do please let me know. ProblemType: Bug Architecture: amd64 Date: Sun Oct 18 17:10:18 2009 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Beta amd64 (20090929.2) NonfreeKernelModules: nvidia Package: libxrandr2 2:1.3.0-2 ProcEnviron: LANGUAGE=en_GB:en LANG=en_GB.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-14.48-generic SourcePackage: libxrandr Uname: Linux 2.6.31-14-generic x86_64 _______________________________________________ Mailing list: https://launchpad.net/~freenx-team Post to : freenx-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~freenx-team More help : https://help.launchpad.net/ListHelp