Comment 2 for bug 134219

I also occasionally see this after resuming my laptop (dell d620) - although it doesn't seem to be every time.

amixer:
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 21 [68%] [-15.00dB] [on]
  Front Right: Playback 21 [68%] [-15.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 31 [12%] [-44.80dB]
  Front Right: Playback 31 [12%] [-44.80dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Mono
  Capture channels: Mono
  Mono: Playback [off] Capture [off]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 14 [93%] [21.00dB] [on]
  Front Right: Capture 14 [93%] [21.00dB] [on]
Simple mixer control 'Capture Mux',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 4
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 60 [50%] [0.00dB]
  Front Right: Capture 60 [50%] [0.00dB]
Simple mixer control 'Input Source',0
  Capabilities: enum
  Items: 'Mic' 'Front Mic' 'Line'
  Item0: 'Front Mic'

lspci -vv:
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
    Subsystem: Dell Unknown device 01c2
    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 efffc000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 2
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
        Status: D0 PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
        Address: 0000000000000000 Data: 0000
    Capabilities: [70] Express Unknown type IRQ 0
        Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
        Device: Latency L0s <64ns, L1 <1us
        Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
        Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
        Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
        Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0
        Link: Latency L0s <64ns, L1 <1us
        Link: ASPM Disabled CommClk- ExtSynch-
        Link: Speed unknown, Width x0