Comment 1 for bug 149423

Some more info:

$ lspci -vv -s 00:1b.0
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
        Subsystem: Dell Unknown device 0228
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at febfc000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>

$ cat /proc/asound/card0/codec#* | grep Codec
Codec: SigmaTel STAC9205
Codec: Conexant ID 2c06