Have you installed linux-backports-modules-alsa-karmic-generic? That should pull in the correct package. After that, reboot.
-- When headphones are plugged in, the speaker does not get muted automatically. https://bugs.launchpad.net/bugs/477154 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