The attached patch fixes the problem. I am unclear as to how the linux-image-.... are being built from this source and also as to how this patch is needed since it was applied upstream with many other changes which appear to be in the ubuntu kernel-source.
** Attachment added: "patch for include/sound/ac97_codec.h" http://librarian.launchpad.net/6853441/ac97_codec.patch -- linux source patch missing? AC97_SCAP_POWER_SAVE undeclared https://launchpad.net/bugs/92706 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs