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[Bug 1523126] Re: Kernel bug on WILY - ALSA on Lenovo x220

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Alberto Salvia Novella <es20490446e@xxxxxxxxx>
Date: Fri, 11 Dec 2015 20:46:30 -0000
Reply-to: Bug 1523126 <1523126@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Please:

1. Edit the bug description, so it is clear what are the steps to recreate the error and what are the consequences of it.
2. Set this bug status back to "confirmed".

Thank you.

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1523126

Title:
  Kernel bug on WILY - ALSA on Lenovo x220

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 4.2.0-18.22-generic 4.2.3
  00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
  	Latency: 0
  	Capabilities: [e0] Vendor Specific Information: Len=0c <?>

  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin A routed to IRQ 28
  	Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
  	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
  	Region 4: I/O ports at 5000 [size=64]
  	Expansion ROM at <unassigned> [disabled]
  	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
  		Address: fee00018  Data: 0000
  	Capabilities: [d0] Power Management version 2
  		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [a4] PCI Advanced Features
  		AFCap: TP+ FLR+
  		AFCtrl: FLR-
  		AFStatus: TP-
  	Kernel driver in use: i915

  00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin A routed to IRQ 29
  	Region 0: Memory at f2525000 (64-bit, non-prefetchable) [size=16]
  	Capabilities: [50] Power Management version 3
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
  		Address: 00000000fee002d8  Data: 0000
  	Kernel driver in use: mei_me

  00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller [8086:1c3d] (rev 04) (prog-if 02 [16550])
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin B routed to IRQ 19
  	Region 0: I/O ports at 50b0 [size=8]
  	Region 1: Memory at f252c000 (32-bit, non-prefetchable) [size=4K]
  	Capabilities: [c8] Power Management version 3
  		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
  		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
  		Address: 0000000000000000  Data: 0000
  	Kernel driver in use: serial

  00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
  	Subsystem: Lenovo Device [17aa:21ce]
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin A routed to IRQ 26
  	Region 0: Memory at f2500000 (32-bit, non-prefetchable) [size=128K]
  	Region 1: Memory at f252b000 (32-bit, non-prefetchable) [size=4K]
  	Region 2: I/O ports at 5080 [size=32]
  	Capabilities: [c8] Power Management version 2
  		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
  	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
  		Address: 00000000fee00298  Data: 0000
  	Capabilities: [e0] PCI Advanced Features
  		AFCap: TP+ FLR+
  		AFCtrl: FLR-
  		AFStatus: TP-
  	Kernel driver in use: e1000e

  00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI])
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin A routed to IRQ 16
  	Region 0: Memory at f252a000 (32-bit, non-prefetchable) [size=1K]
  	Capabilities: [50] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [58] Debug port: BAR=1 offset=00a0
  	Capabilities: [98] PCI Advanced Features
  		AFCap: TP+ FLR+
  		AFCtrl: FLR-
  		AFStatus: TP-
  	Kernel driver in use: ehci-pci

  00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 30
  	Region 0: Memory at f2520000 (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 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
  		Address: 00000000fee00318  Data: 0000
  	Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0
  			ExtTag- RBE-
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  	Capabilities: [100 v1] Virtual Channel
  		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
  		Arb:	Fixed- WRR32- WRR64- WRR128-
  		Ctrl:	ArbSelect=Fixed
  		Status:	InProgress-
  		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
  			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
  			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
  			Status:	NegoPending- InProgress-
  		VC1:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
  			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
  			Ctrl:	Enable+ ID=1 ArbSelect=Fixed TC/VC=22
  			Status:	NegoPending- InProgress-
  	Capabilities: [130 v1] Root Complex Link
  		Desc:	PortNumber=0f ComponentID=00 EltType=Config
  		Link0:	Desc:	TargetPort=00 TargetComponent=00 AssocRCRB- LinkType=MemMapped LinkValid+
  			Addr:	00000000fed1c000
  	Kernel driver in use: snd_hda_intel

  00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4) (prog-if 00 [Normal decode])
  	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Interrupt: pin A routed to IRQ 16
  	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
  	I/O behind bridge: 00002000-00002fff
  	Memory behind bridge: dfa00000-dfbfffff
  	Prefetchable memory behind bridge: 00000000dfc00000-00000000dfdfffff
  	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
  	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
  		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
  	Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0
  			ExtTag- RBE+
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  		LnkCap:	Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us
  			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk-
  			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
  		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
  			Slot #0, PowerLimit 0.000W; Interlock- NoCompl+
  		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
  			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
  		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
  			Changed: MRL- PresDet- LinkState-
  		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
  		RootCap: CRSVisible-
  		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
  		DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
  		LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
  			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
  			 Compliance De-emphasis: -6dB
  		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
  			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
  	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000
  	Capabilities: [90] Subsystem: Lenovo Device [17aa:21da]
  	Capabilities: [a0] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Kernel driver in use: pcieport

  00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b4) (prog-if 00 [Normal decode])
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin B routed to IRQ 17
  	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
  	Memory behind bridge: f2400000-f24fffff
  	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
  	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
  		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
  	Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0
  			ExtTag- RBE+
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  		LnkCap:	Port #2, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
  			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
  			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
  		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
  			Slot #1, PowerLimit 10.000W; Interlock- NoCompl+
  		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
  			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
  		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
  			Changed: MRL- PresDet- LinkState+
  		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
  		RootCap: CRSVisible-
  		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
  		DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
  		LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
  			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
  			 Compliance De-emphasis: -6dB
  		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
  			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
  	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000
  	Capabilities: [90] Subsystem: Lenovo Device [17aa:21da]
  	Capabilities: [a0] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Kernel driver in use: pcieport

  00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b4) (prog-if 00 [Normal decode])
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin D routed to IRQ 19
  	Bus: primary=00, secondary=05, subordinate=0c, sec-latency=0
  	I/O behind bridge: 00004000-00004fff
  	Memory behind bridge: f1c00000-f23fffff
  	Prefetchable memory behind bridge: 00000000f0400000-00000000f0bfffff
  	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
  	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
  		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
  	Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0
  			ExtTag- RBE+
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  		LnkCap:	Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us
  			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk-
  			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
  		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
  			Slot #3, PowerLimit 10.000W; Interlock- NoCompl+
  		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet+ CmdCplt- HPIrq- LinkChg-
  			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
  		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
  			Changed: MRL- PresDet- LinkState-
  		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
  		RootCap: CRSVisible-
  		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
  		DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
  		LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
  			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
  			 Compliance De-emphasis: -6dB
  		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
  			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
  	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000
  	Capabilities: [90] Subsystem: Lenovo Device [17aa:21da]
  	Capabilities: [a0] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Kernel driver in use: pcieport

  00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 [8086:1c18] (rev b4) (prog-if 00 [Normal decode])
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 16
  	Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0
  	I/O behind bridge: 00003000-00003fff
  	Memory behind bridge: f1400000-f1bfffff
  	Prefetchable memory behind bridge: 00000000f0c00000-00000000f13fffff
  	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
  	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
  		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
  	Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0
  			ExtTag- RBE+
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  		LnkCap:	Port #5, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
  			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
  			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
  		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
  			Slot #4, PowerLimit 10.000W; Interlock- NoCompl+
  		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet+ CmdCplt- HPIrq- LinkChg-
  			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
  		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
  			Changed: MRL- PresDet- LinkState-
  		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
  		RootCap: CRSVisible-
  		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
  		DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
  		LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
  			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
  			 Compliance De-emphasis: -6dB
  		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
  			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
  	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000
  	Capabilities: [90] Subsystem: Lenovo Device [17aa:21da]
  	Capabilities: [a0] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Kernel driver in use: pcieport

  00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI])
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin A routed to IRQ 23
  	Region 0: Memory at f2529000 (32-bit, non-prefetchable) [size=1K]
  	Capabilities: [50] Power Management version 2
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [58] Debug port: BAR=1 offset=00a0
  	Capabilities: [98] PCI Advanced Features
  		AFCap: TP+ FLR+
  		AFCtrl: FLR-
  		AFStatus: TP-
  	Kernel driver in use: ehci-pci

  00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset Family LPC Controller [8086:1c4f] (rev 04)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Capabilities: [e0] Vendor Specific Information: Len=0c <?>
  	Kernel driver in use: lpc_ich

  00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller [8086:1c03] (rev 04) (prog-if 01 [AHCI 1.0])
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0
  	Interrupt: pin B routed to IRQ 27
  	Region 0: I/O ports at 50a8 [size=8]
  	Region 1: I/O ports at 50bc [size=4]
  	Region 2: I/O ports at 50a0 [size=8]
  	Region 3: I/O ports at 50b8 [size=4]
  	Region 4: I/O ports at 5060 [size=32]
  	Region 5: Memory at f2528000 (32-bit, non-prefetchable) [size=2K]
  	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
  		Address: fee002b8  Data: 0000
  	Capabilities: [70] Power Management version 3
  		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
  		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
  	Capabilities: [b0] PCI Advanced Features
  		AFCap: TP+ FLR+
  		AFCtrl: FLR-
  		AFStatus: TP-
  	Kernel driver in use: ahci

  00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Interrupt: pin C routed to IRQ 11
  	Region 0: Memory at f2524000 (64-bit, non-prefetchable) [size=256]
  	Region 4: I/O ports at efa0 [size=32]

  03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] [8086:0085] (rev 34)
  	Subsystem: Intel Corporation Centrino Advanced-N 6205 AGN [8086:1311]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 31
  	Region 0: Memory at f2400000 (64-bit, non-prefetchable) [size=8K]
  	Capabilities: [c8] Power Management version 3
  		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
  	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
  		Address: 00000000fee00338  Data: 0000
  	Capabilities: [e0] Express (v1) Endpoint, MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited
  			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
  			MaxPayload 128 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
  		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
  			ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
  			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
  	Capabilities: [100 v1] Advanced Error Reporting
  		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
  		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
  		UESvrt:	DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
  		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
  		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
  		AERCap:	First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
  	Capabilities: [140 v1] Device Serial Number 08-11-96-ff-ff-56-ba-dc
  	Kernel driver in use: iwlwifi

  0d:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 07) (prog-if 01)
  	Subsystem: Lenovo Device [17aa:21da]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 16
  	Region 0: Memory at f1400000 (32-bit, non-prefetchable) [size=256]
  	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
  		Address: 0000000000000000  Data: 0000
  	Capabilities: [78] Power Management version 3
  		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
  		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME-
  	Capabilities: [80] Express (v1) Endpoint, MSI 00
  		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
  			ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset-
  		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
  			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
  			MaxPayload 128 bytes, MaxReadReq 512 bytes
  		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
  		LnkCap:	Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 unlimited
  			ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
  		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
  			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
  	Capabilities: [100 v1] Virtual Channel
  		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
  		Arb:	Fixed- WRR32- WRR64- WRR128-
  		Ctrl:	ArbSelect=Fixed
  		Status:	InProgress-
  		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
  			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
  			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
  			Status:	NegoPending- InProgress-
  	Capabilities: [800 v1] Advanced Error Reporting
  		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
  		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
  		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
  		CESta:	RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
  		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
  		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
  	Kernel driver in use: sdhci-pci

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-18-generic 4.2.0-18.22
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  matt       2735 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Dec  5 17:13:46 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-21 (317 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 4291BC2
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=UUID=821cb977-e9d5-4df6-a0c7-6467767d6e67 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-18-generic N/A
   linux-backports-modules-4.2.0-18-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-23 (43 days ago)
  dmi.bios.date: 07/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET69WW (1.39 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4291BC2
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn4291BC2:pvrThinkPadX220:rvnLENOVO:rn4291BC2:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4291BC2
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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References

[Bug 1523126] [NEW] Kernel bug on WILY - ALSA on Lenovo x220
From: Matthieu ORTALA, 2015-12-05