I can confirm the exact same behavior witnessed by Mike in comment #5 and Erwin above. In my case I have been trying to troubleshoot the extreme lack of theming in Oneiric - it never occurred to me to unplug my external WD My Book, which has been "recognized" as a keyboard for as long as I can remember but has never given me any difficulty.
Once unplugged, I can start gnome-settings-daemon fine, and windows are themed. (gnome-settings-daemon:4587): Gdk-WARNING **: The program 'gnome-settings-daemon' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 873 error_code 8 request_code 143 minor_code 22) (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.) [Thread 0x7fffedda5700 (LWP 4591) exited] [Thread 0x7fffed5a4700 (LWP 4592) exited] [Thread 0x7fffee5a6700 (LWP 4590) exited] [Inferior 1 (process 4587) exited with code 01] (gdb) q rob@ig:~ $ xinput list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Logitech USB-PS/2 Optical Mouse id=9 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Power Button id=7 [slave keyboard (3)] ↳ DecK Deck Legend id=8 [slave keyboard (3)] ↳ Western Digital My Book id=10 [slave keyboard (3)] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/805894 Title: gnome-settings-daemon crashed with signal 5 in xkl_process_error() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/805894/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs