I will attach the entire contents of sndstat because it looks to me like it contains useful information beyond the last two lines (none of which appears to me to talk about codecs as discussed in the web page).
** Attachment added: "entire sndstat" http://librarian.launchpad.net/6859589/sndstat -- Laptop sound originates from both laptop and headphones https://launchpad.net/bugs/92358 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
