Just for the record.... You can see from my original bug posting that my system had a Realtek ALC272 card.
Unfortunately (or perhaps fortunately) the screen on my NB30500F died (backlight ceased to function). I plan on replacing the unit soon with an identical one. It will take me a day or two to install Ubuntu. I will report back as to whether identical sound problems occur for a completely new install on a new machine. -- Toshiba NB30500F pulseaudio problem https://bugs.launchpad.net/bugs/574137 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