Support for 8086:ae20 Intel Smart Sound Technology on Fujitsu Lifebook

[Norbert Preining]

Dear Pierre-Louis, dear all,

(please cc)

thanks for your answer, much appreciated.

On Mon, 06 Dec 2021, Pierre-Louis Bossart wrote:
> if you are looking at Windows, the string you want to look for starts
> with 'CTLR_DEV_', not 'DEV_'

Thanks, didn't know. The string I found is
	CTRL_DEV_02C8

> > 00:1f.3 Multimedia audio controller: Intel Corporation Comet Lake PCH-LP cAVS
> 
> This is the one you want details on. please share the results of:
> 
> cat /sys/bus/pci/devices/0000\:00\:1f.3/device
> cat /sys/bus/pci/devices/0000\:00\:1f.3/class
> 
> and sudo lspci  -vvv -s 00:1f.3

Here they are

[~] cat /sys/bus/pci/devices/0000\:00\:1f.3/device 
0x02c8
[~] cat /sys/bus/pci/devices/0000\:00\:1f.3/class
0x040100
[~] sudo lspci -vvv -s 00:1f.3
00:1f.3 Multimedia audio controller: Intel Corporation Comet Lake PCH-LP cAVS
        Subsystem: Fujitsu Client Computing Limited Comet Lake PCH-LP cAVS
        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: 32, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 173
        IOMMU group: 13
        Region 0: Memory at a2130000 (64-bit, non-prefetchable) [size=16K]
        Region 4: Memory at 604e000000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D3 NoSoftRst+ PME-Enable+ DSel=0 DScale=0 PME-
        Capabilities: [80] Vendor Specific Information: Len=14 <?>
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee008d8  Data: 0000
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci_intel_cnl
[~]


When I check with pavucontrol I only see 
	Built-in Audio Analog Stereo
as input source, and there is no reaction to sound (and it is unmuted).
So I guess this is the device connected to the plug on the side of the
laptop.

(please cc)

All the best

Norbert

--
PREINING Norbert                              https://www.preining.info
Fujitsu Research  +  IFMGA Guide  +  TU Wien  +  TeX Live  + Debian Dev
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