Same problem here, same solution (alsamixer), but this has to be performed every time. I am using a Logitech USB headset, and I can confirm that before upgrading to Lucid, all was fine.
** Attachment added: "alsamixer -c 1" http://launchpadlibrarian.net/41773399/Screenshot.png ** Changed in: alsa-driver (Ubuntu) Status: New => Confirmed -- Sound through USB headset unusually quiet after Lucid upgrade https://bugs.launchpad.net/bugs/545233 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