I have a fresh install of Ubuntu 9.04, Jaunty on a Lenovo T60 and since the beginning sound was muted after login. The drum roll happen at the GDM login screen but no login sound. Yesterday I eventually found a solution for it.
The solution was comment out line 372 in /etc/init.d/alsa-utils. The line in question was ‘mute_and_zero_levels “$TARGET_CARD” || EXITSTATUS=1’. Just this small change has solved the issue for me.
Now to be honest, I have no idea what the purpose of this line is and whether any other issues might crop up by commenting out this line. Well, sofar I have found no regressions by commenting out the line.






Space Shuttle Endeavour cuts a bright swath through the dark sky during this night-time launch in January 1998. Nearly six years earlier on Sept. 12, 1992, Endeavour blasted off, carrying Dr. Mae Jamison, the first African-American woman to fly in space, and Mamoru Mohri, the first Japan Aerospace Exploration Agency astronaut on a shuttle mission.