I'm having the same issue. It's happened more than once. I just recently installed 10.10 amd64 as well. I've pasted the lines from kernel messages below. The last message was 2 hours before this happen so I am able to completely isolate the messages related to this.
Dec 31 04:03:07 desktop1 pulseaudio[16637]: pid.c: Stale PID file, overwriting. Dec 31 04:03:07 desktop1 pulseaudio[16637]: main.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NoServer: Failed to connect to socket /tmp/dbus-nrfoHcWoGD: Connection refused Dec 31 04:03:09 desktop1 kernel: [43985.369267] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.378250] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.384247] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.452287] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.461377] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.467270] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.507271] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.513302] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.522291] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:09 desktop1 kernel: [43985.564298] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.646011] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.654982] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.660977] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.730065] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.739007] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.744986] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.781005] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.786987] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.797025] 4:1:1: endpoint lacks sample rate attribute bit, cannot set. Dec 31 04:03:15 desktop1 kernel: [43991.827016] 4:2:1: endpoint lacks sample rate attribute bit, cannot set. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/581618 Title: Restart session unexpected 10.04 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
