I had the same problem with my asus f3f laptop, too. Then, I erased Ubuntu from my computer and I formatted my windows xp. The fact is it still doesn't work and I don't know why. I hope somebody could help me..
-- Internal speakers don't play after Ubuntu actualization (Asus F3F) https://launchpad.net/bugs/89736 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs