After updating the Kernel to version 3.6.8 through website upubuntu( http://www.upubuntu.com/2012/11/install-linux-kernel-368-in-ubuntu.html ), it SOLVED!
Finally, sound on my iMac9,1 ALC889A come back again. No need to use "model=imac91", etc., it's just work. Everaldo, thank a lot !! Cheer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1033233 Title: [iMac9,1, Realtek ALC889A, Speaker, Internal] No sound at all with kernel 3.5.0 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1033233/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs