Let us record a potential fix here:
commit 91dce767cd0b08be9f1c87bb2de8e63391a72692
Author: Kai Vehmanen <[email protected]>
Date: Tue Dec 17 18:26:13 2019 -0600
ASoC: SOF: Intel: drop HDA codec upon probe failure
In case a HDA codec probe fails, do not raise error immediately,
but instead remove the codec from bus->codec_mask and continue
probe for other codecs.
This allows for more robust behaviour in cases where one codec
in the system is faulty. SOF driver load can still proceed with
the codecs that can be probed successfully. Probe may still
fail if suitable machine driver is not found, but in many
cases the generic HDA machine driver can operate with a subset
of codecs.
Reviewed-by: Ranjani Sridharan <[email protected]>
Signed-off-by: Kai Vehmanen <[email protected]>
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1886341
Title:
Kernel Regression between 5.4.0-26 and 5.4.0-40 causes laptop internal
audio devices to fail to load w/o unacceptable workaround
Status in linux package in Ubuntu:
Confirmed
Bug description:
On Ubuntu 20.04, running kernel 5.4.0-40-generic, the internal
speakers, headphone jack, and mic do not work at all. No audio devices
appear in the Sound settings or in pavucontrol. By appending options
snd_hda_intel dmic_detect=0 to /etc/modprobe.d/alsa-base.conf, I can
get audio working, but the microphone (unsuprisingly) does not work.
Appending options snd-intel-dspcfg dsp_driver=1 to alsa_base.conf as
the same effect as dmic_detect=0. Attempts to fix with option
snd_hda_intel device=generic or deveice=auto have had no effect. This
bug does NOT manifest on 5.4.0-26-generic, the kernel version featured
on the 20.04 live media. After installation, and updating to
5.4.0-40-generic, the bug manifests on the next boot.
Note that the audio hardware seems to work properly w/o workaround on
a small (< 5%) percentage of boots, but I have been unable to
reproduce this. With the workaround enabled, inxi -A gives
Audio:
Device-1: Intel Smart Sound Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-40-generic
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-40-generic 5.4.0-40.44
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jill 1374 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jul 5 13:32:58 2020
InstallationDate: Installed on 2020-07-03 (2 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 81YK
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic
root=UUID=dc3e058d-42fc-4de4-b94a-749c1295dc68 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-40-generic N/A
linux-backports-modules-5.4.0-40-generic N/A
linux-firmware 1.187.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: DPCN40WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad 5 15IIL05
dmi.modalias:
dmi:bvnLENOVO:bvrDPCN40WW:bd03/18/2020:svnLENOVO:pn81YK:pvrIdeaPad515IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrIdeaPad515IIL05:
dmi.product.family: IdeaPad 5 15IIL05
dmi.product.name: 81YK
dmi.product.sku: LENOVO_MT_81YK_BU_idea_FM_IdeaPad 5 15IIL05
dmi.product.version: IdeaPad 5 15IIL05
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886341/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
