CirrusLogic: Cracking noises appears in built-in speaker when output volume is set >80%
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Medium
|
You-Sheng Yang | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
Hirsute |
Fix Released
|
Medium
|
You-Sheng Yang | ||
Impish |
Fix Released
|
Medium
|
You-Sheng Yang | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
High
|
You-Sheng Yang | ||
Hirsute |
Invalid
|
Undecided
|
Unassigned | ||
Impish |
Invalid
|
Undecided
|
Unassigned |
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:/
---
ProblemType: Bug
ApportVersion: 2.20.11-
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CasperMD5CheckR
DistributionCha
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://
canonical-
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_
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-
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
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.
dmi.product.family: Vostro
dmi.product.name: Vostro 3500
dmi.product.sku: 0A24
dmi.sys.vendor: Dell Inc.
Changed in linux (Ubuntu Hirsute): | |
importance: | High → Medium |
Changed in linux (Ubuntu Impish): | |
importance: | High → Medium |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Hirsute): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Impish): | |
status: | In Progress → Fix Committed |
Changed in hwe-next: | |
status: | New → Fix Released |
Proposed patch: https:/ /github. com/CirrusLogic /product- support/ blob/cs8409_ hda/dell/ hda/5.10. 7/0001- ALSA-hda- cirrus- Add-14dB- attenuation- using-CS8409- EQ.patch