Either a recent round of system updates or installing the "linux- backports-modules-alsa-karmic-generic" package as recommended seems to have done the trick for me. Still not sure whether this was the same issue as the original post, though.
-- [karmic] pulseaudio always receive hardware volume=1% from Philips PSC805 USB https://bugs.launchpad.net/bugs/434042 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
