This was tipped by aschuring in bug 295136 with Flagman's explanation -- here's another workaround:
STEP A. sudo gedit /etc/hosts STEP B. Change the first line in the IPv6 section from # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback to # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback Wallah! No more hang at shutdown or reboot or when otherwise using amixer when no user is logged in. -- MASTER storing ALSA mixer element values during shutdown hangs nondeterministically if non-loopback network interfaces are still up https://bugs.launchpad.net/bugs/274995 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
