It seems that after upgrading to Karmic you are still booting a non-Karmic kernel. There may have been an issue updating grub during the upgrade.
Please try: sudo mv /boot/grub/menu.lst /boot/grub/menu.lst.backup sudo update-grub sudo reboot After rebooting run: uname -a Verify that the kernel you are now booting is of the 2.6.31 variety. If running with a Karmic kernel does not fix your issue change the status of this bug back to new. ** Changed in: alsa-driver (Ubuntu) Status: New => Incomplete -- no sound after upgrade 9.04 to 9.10 https://bugs.launchpad.net/bugs/466637 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