I installed Ubuntu 8.04 (x86) on an Acer TravelMate 5520 (ATI Technologies Inc SBx00 Azalia / ALC268) last week and I can confirm that sound works out-of-the-box (everything but microphone, which I have not been able to get working).
I installed Ubuntu 8.04 (x86) on an Acer TravelMate 5520 (ATI Technologies Inc SBx00 Azalia / ALC268) last week and I can confirm that sound works out-of-the-box (everything but microphone, which I have not been able to get working).