** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1924997
Title:
CirrusLogic: Cracking noises appears in built-in speaker when output
volume is set >80%
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.10 source package in Focal:
Fix Committed
Status in linux source package in Hirsute:
In Progress
Status in linux-oem-5.10 source package in Hirsute:
Invalid
Status in linux source package in Impish:
In Progress
Status in linux-oem-5.10 source package in Impish:
Invalid
Bug description:
[SRU Justification]
[Impact]
On a few CS8409 installed platforms, there are crack sounds when playing
audio with output volume set to 100%.
[Fix]
The hardware is not capable of generating smooth audio output at the
maximum volume that codec chip can be configured. A fix proposed to lower
the maximum output volume using CS8409 equalizer.
[Test Case]
Use GNOME Settings / Sound Settings, set volume to 100%, play test
audio for both right and left channels; set volume back to 70%, and
repeat the same to compare to differences. While we don't have acoustic
lab to perform precise measurements, the result was confirmed by
partner.
[Where problems could occur]
This is to add a preconfigured, equalizer driver default values. This
will introduce non-uniformed frequency response in comparison to that in
the hardware preset. The net effect observable to general users is a
lower maximum output volume. For those Hi-Fi users, audio output always
takes additional calibration via extra software like ALSAEqual and/or
hardware.
[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 ==========
A cracking noises is noticed when doing audio playback from the built-
in speaker when the volume is set >80.
Upstream bug: https://github.com/CirrusLogic/product-support/issues/11
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: u 1444 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 (6 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 (not installed)
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=5faadc6d-6af0-41ba-bfce-60bd8c19b7f8 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.
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