I seem to be having similar symptoms. I have a Gigabyte motherboard with a Realtek ALC889A chip in it. Sound somewhat works with the latest Ubuntu Karmic CD although I do see some anomalies (which I have reported here: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/439779 ). Sound was also working when I booted from the Mythbuntu beta liveCD earlier tonight however now that I have installed it and booted to it (and just now updated) I have no sound. The linked bug has a lot more detail on the hardware if that is helpful.
-- Sound works on LiveCD, but not after install https://bugs.launchpad.net/bugs/442793 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