Comment 9 for bug 200451

I can also confirm that it worked on -11 and not -12 for amd_64 and following config.

$ sudo lspci -vnnn
00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia [1002:4383]
 Subsystem: Hewlett-Packard Company Unknown device [103c:30c2]
 Flags: bus master, slow devsel, latency 64, IRQ 10
 Memory at 88000000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: [50] Power Management version 2