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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