Comment 15 for bug 274995

Please note that this bug does not appear to be hardware specific, as previously noted, as it is seen with at least the following hardware configurations:

Intel Corporation 82801CA/CAM AC'97 Audio Controller [8086:2485] (rev 02) (Cirrus Logic Device)
VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller
ATI Technologies Inc SBx00 Azalia (Intel HDA)
Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

The alsa-utils init script does not appear to be the culprit either as it starts and stops fine without problem although it is killing this script that will allow the shutdown process to continue.

In the Alpha6 release it was possible to switch to a virtual console, log in and "killall -9 K50alsa-utils" which immediately allowed the shutdown to continue however in the current beta it seems that keyboard login is disabled earlier and this is no longer possible, forcing the user to wait for the script to time out.

I installed ubuntu from an Alpha 6 desktop CD image and immediately ran update manager to get the latest packages.

Cheers,

Alan