Looks like it's available now:
https://lists.ubuntu.com/archives/kernel-team/2009-October/007611.html
Please try installing the linux-backports-modules-alsa-karmic-generic and see if this helps.
Looks like it's available now:
https:/ /lists. ubuntu. com/archives/ kernel- team/2009- October/ 007611. html
Please try installing the linux-backports -modules- alsa-karmic- generic and see if this helps.