Sound No Longer Working when Upgrading to Ubuntu 9.10...
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Solution for No Sound when Upgrading from Ubuntu 9.04 to 9.10
Ok figured out what went wrong with the Sound when I Upgraded from Ubuntu 9.04 to 9.10. I remember while installing the upgrade, the prompt asked me if I wanted to keep the old version of the menu.lst. I replied no, and that was the problem. Even though the new kernel was built, the grub menu.lst did not pick it up, and was still using the older kernel.
So here's the SOLUTION...:
-->Goto Synaptic Package Manager
-->search for grub-pc
-->When the system reboots, you'll see the grub menu. If it boots up ok, and you can verify sound is occuring, then reboot and pull up a terminal and type the following...:
-->(press ok to the first prompt, then MAKE SURE TO PRESS THE SPACE BAR when the [ ] /dev/sda prompt appears so that an * populates the brackets[*]. Then tab down and press ok.)