Bug 200431 - No sound on ASUS T103HAF (Intel Cherry Trail)
Summary: No sound on ASUS T103HAF (Intel Cherry Trail)
Status: RESOLVED DUPLICATE of bug 115531
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: Intel Linux
: P1 blocking
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-07-06 13:09 UTC by Mitm
Modified: 2019-02-03 05:49 UTC (History)
4 users (show)

See Also:
Kernel Version: 4.17.4-041704-generic
Subsystem:
Regression: No
Bisected commit-id:


Attachments
alsa-info.sh result (13.67 KB, text/plain)
2018-07-06 13:09 UTC, Mitm
Details
dmesg (55.56 KB, text/plain)
2018-07-06 13:10 UTC, Mitm
Details
Pulseaudio daemon log (154.27 KB, text/plain)
2018-07-06 13:11 UTC, Mitm
Details

Description Mitm 2018-07-06 13:09:53 UTC
Created attachment 277221 [details]
alsa-info.sh result

Hello Intel and ALSA developers,

On the ASUS Transformer T103HAF, all of the hardware is supported except sound. Sound works through Windows 10, however. Here is some information about my PC:

Manufacturer:        ASUSTeK COMPUTER INC.
Product Name:        T103HAF
Product Version:     1.0       
Firmware Version:    T103HAF.306
UEFI:                American Megatrends
Firmware Date:       12/05/2017
Board Vendor:        ASUSTeK COMPUTER INC.
Board Name:          T103HAF
Current Date:        Jul 06 2018
Sound Card:          Intel HDMI/DP LPE Audio
Driver:              HdmiLpeAudio (snd_hdmi_lpe_audio)
CPU:                 Quad core Intel Atom x5-Z8350 (-MCP-) cache: 1024 KB
CPU Platform:        Cherry Trail
Kernel Version:      4.17.4-041704-generic
Architecture:        x86_64
Distro:              Xubuntu 18.04 LTS Bionic Beaver
Sound:               ALSA v: k4.17.4-041704-generic
PulseAudio Version:  12.0
PulseAudio Running:  Yes

lspci -vv:
# lspci -vvv
00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 36)
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register
	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
	Kernel driver in use: iosf_mbi_pci

00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers (rev 36) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers
	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 120
	Region 0: Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
	Region 2: Memory at 80000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	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: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee02004  Data: 4028
	Capabilities: [b0] Vendor Specific Information: Len=07 <?>
	Kernel driver in use: i915
	Kernel modules: i915

00:03.0 Multimedia controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit (rev 36)
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit
	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 255
	Region 0: Memory at 91000000 (32-bit, non-prefetchable) [disabled] [size=4M]
	Capabilities: [80] 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: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000

00:0a.0 Non-VGA unclassified device: Intel Corporation Device 22d8 (rev 36)
	Subsystem: ASUSTeK Computer Inc. Device 1c60
	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 20
	Region 0: Memory at 91a3a000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [80] 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-
	Kernel driver in use: intel_ish_ipc
	Kernel modules: intel_ish_ipc

00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 36)
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller
	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 130
	Region 0: Memory at 91a39000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: [40] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee02004  Data: 4027
	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-
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device

00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 36) (prog-if 30 [XHCI])
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller
	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 117
	Region 0: Memory at 91a00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [70] 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: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
		Address: 00000000fee08004  Data: 4025
	Kernel driver in use: xhci_hcd

00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 36)
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine
	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 131
	Region 0: Memory at 91900000 (32-bit, non-prefetchable) [size=1M]
	Region 1: Memory at 91800000 (32-bit, non-prefetchable) [size=1M]
	Capabilities: [80] 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: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee04004  Data: 4027
	Kernel driver in use: mei_txe
	Kernel modules: mei_txe

00:1c.0 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 (rev 36) (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 116
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: 91600000-917fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	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 <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 #0, 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 ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis+, LTR+, OBFF Disabled ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/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: fee01004  Data: 4023
	Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port
	Capabilities: [a0] 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: [100 v0] #00
	Capabilities: [200 v1] L1 PM Substates
		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
			  PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
		L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
			   T_CommonMode=50us LTR1.2_Threshold=163840ns
		L1SubCtl2: T_PwrOn=10us
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 36)
	Subsystem: ASUSTeK Computer Inc. Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU
	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
	Kernel modules: lpc_ich

01:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
	Subsystem: AzureWave QCA9377 802.11ac Wireless Network Adapter
	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 134
	Region 0: Memory at 91600000 (64-bit, non-prefetchable) [size=2M]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable+ Count=1/8 Maskable+ 64bit-
		Address: fee08004  Data: 4027
		Masking: 000000fe  Pending: 00000000
	Capabilities: [70] Express (v2) Endpoint, MSI 00
		DevCap:	MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 10.000W
		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 #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us
			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-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR+, OBFF Via message
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis+, LTR+, OBFF Disabled
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [100 v2] 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: [148 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-
	Capabilities: [168 v1] Device Serial Number 00-00-00-00-00-00-00-00
	Capabilities: [178 v1] Latency Tolerance Reporting
		Max snoop latency: 15360ns
		Max no snoop latency: 15360ns
	Capabilities: [180 v1] L1 PM Substates
		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
			  PortCommonModeRestoreTime=50us PortTPowerOnTime=10us
		L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
			   T_CommonMode=0us LTR1.2_Threshold=163840ns
		L1SubCtl2: T_PwrOn=10us
	Kernel driver in use: ath10k_pci
	Kernel modules: ath10k_pci

Cherry Trail-related UCM files:
$ ls /usr/share/alsa/ucm/cht*
/usr/share/alsa/ucm/cht-bsw-rt5672:
cht-bsw-rt5672.conf  HiFi

/usr/share/alsa/ucm/chtmax98090:
chtmax98090.conf  HiFi.conf

/usr/share/alsa/ucm/chtnau8824:
chtnau8824.conf  HiFi.conf

/usr/share/alsa/ucm/chtrt5645:
chtrt5645.conf  HiFi.conf

alsa_info.txt: Attached
Pulseaudio log: Will be attached
dmesg: Will be attached
Comment 1 Mitm 2018-07-06 13:10:58 UTC
Created attachment 277223 [details]
dmesg
Comment 2 Mitm 2018-07-06 13:11:29 UTC
Created attachment 277225 [details]
Pulseaudio daemon log
Comment 3 Riccardo 2019-01-02 10:44:26 UTC
I have this issue too, with kernel v 4.18.14

Intel® Atom x5-Z8350 1,44 GHz Quad-Core Processor
4 GB LPDDR3 1600MHz SDRAM Onboard Memory
Integrated Intel HD Graphics
Intel SST Audio Device (WDM)
Qualcomm Atheros QCA9377 Wireless Network Adapter

Conexant I2S Audio Codec
ACPI\VEN_14F1&DEV_0720&SUBSYS_10431C60
ACPI\14F10720
*14F10720

Intel SST Audio Device (WDM)
ACPI\VEN_8086&DEV_22A8&SUBSYS_10431C60
ACPI\808622A8
*808622A8
Comment 4 RussianNeuroMancer 2019-01-26 07:06:29 UTC
> ACPI\14F10720

It's seems like you have cx2072x audio codec, which is discussed here: https://bugzilla.kernel.org/show_bug.cgi?id=115531

Try this links and see if it's works for you: https://bugzilla.kernel.org/show_bug.cgi?id=117801#c7
Comment 5 Logan Rathbone 2019-01-30 00:14:38 UTC
IMO, this is a duplicate of https://bugzilla.kernel.org/show_bug.cgi?id=115531 as indicated by comment #4.

I can replicate on my ASUS Transformer T103HA.

For now, you'll have to install a patched kernel which includes the cx2072x codec. See the bug above for options, or see my comment #108 on the above-mentioned bug: https://bugzilla.kernel.org/show_bug.cgi?id=115531#c108

As you can see, a driver was indeed written by Conexant and has been modified enough to apply cleanly to 4.20.x, but I think the code was deemed not good enough to be incorporated into the mainline kernel.
Comment 6 Mitm 2019-02-03 05:49:08 UTC
I can confirm the fix detailed at https://github.com/heikomat/linux/tree/cx2072x/cx2072x_fixes_and_manual solved the issue. Closing this ticket as it is a duplicate. Thank you for the help and the hard work!

*** This bug has been marked as a duplicate of bug 115531 ***

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