[SRU Justification]
[Impact]
On some platforms with Cirrus CS8409 audio codec, DMIC volume default
value in kernel driver is 0, which follows no audio sound will be played
during installation and OOBE until being explicitly configured again via
GNOME Settings GUI or other methods.
[Fix]
Commit 0e853a9c3937 ("ALSA: hda/cirrus: Set Initial DMIC volume for
Bullseye to -26 dB") currently landed in upstream tiwai/sound.git is
required this address this issue. It's also being proposed to v5.13
merge window.
[Test Case]
Try to remove all the user space settings caches and reboot. The
detailed steps are:
$ sudo systemctl disable alsa-restore.service
$ sudo rm /var/lib/alsa/asound.state
$ sudo reboot
$ amixer sget 'Internal Mic',0
Simple mixer control 'Internal Mic',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 63
Front Left: Capture 0 [0%] [-51.00dB] [off]
Front Right: Capture 0 [0%] [-51.00dB] [off]
Expect 40% in the front left/right capture volumes.
[Where problems could occur]
This gives the default value of Cirrus CS8409 audio codec capture volume
on Bullseye only. Cannot come out with any side effect it may produce so
far.
[Other Info]
By SRU we skipped a couple of refactoring changes in asound upstream
tree, so additional changes to the original patch are required to
backport.
========== original bug description ==========
The initial default input volume right after Ubuntu installation is set to 0% while 16% is expected.
$ amixer
...
Simple mixer control 'Internal Mic',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 63
Front Left: Capture 0 [0%] [-51.00dB] [off]
Front Right: Capture 0 [0%] [-51.00dB] [off]
Simple mixer control 'Internal Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 2
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: u 1523 F.... pulseaudio
CasperMD5CheckResult: skip
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85+fossa-proposed-release+X90
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-04-13 (0 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0c45:671e Microdia Integrated_Webcam_HD
Bus 001 Device 002: ID 27c6:538d Shenzhen Goodix Technology Co.,Ltd. FingerPrint
Bus 001 Device 004: ID 0cf3:e009 Qualcomm Atheros Communications
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Vostro 3500
Package: linux-oem-5.10
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-1020-oem root=UUID=c666f936-5b87-4cbd-bde6-21fa93b89036 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.10.0-1020.21-oem 5.10.25
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.10.0-1020-oem N/A
linux-backports-modules-5.10.0-1020-oem N/A
linux-firmware 1.187.10
Tags: focal
Uname: Linux 5.10.0-1020-oem x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 02/02/2021
dmi.bios.release: 1.2
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.2
dmi.board.name: 09YKK0
dmi.board.vendor: Dell Inc.
dmi.board.version: X00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.2.2:bd02/02/2021:br1.2:svnDellInc.:pnVostro3500:pvr:rvnDellInc.:rn09YKK0:rvrX00:cvnDellInc.:ct10:cvr:
dmi.product.family: Vostro
dmi.product.name: Vostro 3500
dmi.product.sku: 0A24
dmi.sys.vendor: Dell Inc.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1923557
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.