it looks like the change to alsa explicitly worked. My rhythmbox has been working for past 2 hours. Before it would block after 2 minutes. I can also see this in /var/log/messages
May 8 21:37:50 my-laptop -- MARK -- May 8 21:44:10 my-laptop kernel: [59418.645251] compiz.real[5206]: segfault at 05000000 eip 08055a80 esp bffbf4d0 error 4 May 8 21:44:28 my-laptop pulseaudio[27942]: pid.c: Stale PID file, overwriting. May 8 21:44:29 my-laptop pulseaudio[27942]: alsa-util.c: Device front:0 doesn't support 44100 Hz, changed to 48000 Hz. May 8 21:44:29 my-laptop pulseaudio[27942]: alsa-util.c: Device front:0 doesn't support 44100 Hz, changed to 48000 Hz. May 8 21:44:29 my-laptop pulseaudio[27942]: alsa-util.c: Cannot find fallback mixer control "Mic". May 8 21:57:50 my-laptop -- MARK -- May 8 22:17:50 my-laptop -- MARK -- -- rhythmbox freezes after playing for an hour or more and locks all sound until reboot https://bugs.launchpad.net/bugs/219848 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs