I own an ASUS A6VA too. On Edgy I had to do as Alexandre did as stated above to have the output work when plugging headphones, with the only exception that I just concatenated the command at the end of /etc/modprobe.d/alsa-base. I can recall of a file named "sound", but it might source back from the Dapper days or even the Breezy ones.
-- Problem external output sound (HDA intel, Alsa) dapper flight 6. https://launchpad.net/bugs/38463 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs