With the 5.4 kernel, the sound driver could detect audio dsp and dmic runtime,
on this mahcine, the driver found them, then it abort the legacy hda driver:
[ 13.711820] snd_hda_intel :00:1f.3: Digital mics found on Skylake+
platform, aborting probe
Then the sound driver load the sof driver, but it finally failed to find the
tplg file for this machine:
[ 14.056300] sof-audio-pci :00:1f.3: Direct firmware load for
intel/sof-tplg/sof-hda-generic-4ch.tplg failed with error -2
[ 14.056303] sof-audio-pci :00:1f.3: error: tplg request firmware
intel/sof-tplg/sof-hda-generic-4ch.tplg failed err: -2
For sof firmware and tplg, Intel has not released sof-hda-generic-
4ch.tplg to us, then we didn't integrate it to ubuntu yet.
So for using the legacy hda driver forcibly, please add the module
parameter dmic_detect=0 to the snd-hda-intel.
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https://bugs.launchpad.net/bugs/1860697
Title:
Sound doesn't work on Lenovo X1 Carbon with 20.04
Status in linux package in Ubuntu:
Confirmed
Bug description:
I recently upgraded from 18.04+HWE kernel to 20.04 and now sound, both
output and input, does not work.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-9-generic 5.4.0-9.12
ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3
Uname: Linux 5.4.0-9-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu15
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 23 12:00:01 2020
InstallationDate: Installed on 2019-09-06 (139 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64
(20190805)
MachineType: LENOVO 20QDCTO1WW
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
TERM=xterm-256color
XDG_RUNTIME_DIR=
PATH=(custom, user)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-9-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-9-generic N/A
linux-backports-modules-5.4.0-9-generic N/A
linux-firmware 1.184
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-01-22 (1 days ago)
dmi.bios.date: 12/09/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N2HET43W (1.26 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20QDCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2HET43W(1.26):bd12/09/2019:svnLENOVO:pn20QDCTO1WW:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QDCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 7th
dmi.product.name: 20QDCTO1WW
dmi.product.sku: LENOVO_MT_20QD_BU_Think_FM_ThinkPad X1 Carbon 7th
dmi.product.version: ThinkPad X1 Carbon 7th
dmi.sys.vendor: LENOVO
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