I had the same problem on Karmic, amd64, integrated Intel HD Audio soundcard. Removing sl-modem-daemon solved the problem
-- No sound after installing ubuntu 9.10 karmic koala beta https://bugs.launchpad.net/bugs/440842 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