I am experiencing this same problem since upgrading to Natty. alsa- utils 1.0.24.2-0ubuntu6. Let me know if additional information is needed.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/622487 Title: After using alsamixer sound is muted or set to zero upon reboot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs