Comment 4 for bug 445889

Some of these settings are in nvram. What is interesting is the WinXP also gets lost. Try checking Acer for a BIOS update and if they have a help line, as for their help to get XP to work again. This can give clues wrt getting Karmic to work as well. If the BIOS is in its present confused state, neither we nor MS can do a sensible default. Once XP is happy, we can then work on snd_hda+ac269 to make them happy.