Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1972055
Title:
[20XXS62S00, Realtek ALC287, Speaker, Internal] Underruns, dropouts or
crackling sound
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
After upgrading Carbon X1 gen 9 to Ubuntu 22.04 (from 20.04), there
appeared strange problem with speaker sound in video conferences
(Zoom) and also with Chrome (for example YouTube & Preply).
The problem is as following: the speaker sound level is reduced when
somebody speaks after a gap of silence, then the sound level is
quickly increased to normal level. This creates the very strange
fluctuating up/down sound level which when sound level is low at the
start of each sentence.
This problem was not there with Ubuntu 20.04 on the same laptop. This
problem is also not presented when using Zoom with Windows 11 on the
same machine.
Thank you for your consideration.
Best regards, Rustem
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rustem 1576 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat May 7 11:24:53 2022
InstallationDate: Installed on 2022-04-23 (13 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64
(20220419)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp
successful
Symptom_Card: Tiger Lake-LP Smart Sound Technology Audio Controller -
sof-hda-dsp
Symptom_Jack: Speaker, Internal
Symptom_PulseAudioLog: May 07 11:15:06 rox1 pulseaudio[1002]: After module
unload, module 'module-null-sink' was still loaded!
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [20XXS62S00, Realtek ALC287, Speaker, Internal] Underruns, dropouts or
crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/02/2021
dmi.bios.release: 1.51
dmi.bios.vendor: LENOVO
dmi.bios.version: N32ET75W (1.51 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20XXS62S00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.32
dmi.modalias:
dmi:bvnLENOVO:bvrN32ET75W(1.51):bd12/02/2021:br1.51:efr1.32:svnLENOVO:pn20XXS62S00:pvrThinkPadX1CarbonGen9:rvnLENOVO:rn20XXS62S00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20XX_BU_Think_FM_ThinkPadX1CarbonGen9:
dmi.product.family: ThinkPad X1 Carbon Gen 9
dmi.product.name: 20XXS62S00
dmi.product.sku: LENOVO_MT_20XX_BU_Think_FM_ThinkPad X1 Carbon Gen 9
dmi.product.version: ThinkPad X1 Carbon Gen 9
dmi.sys.vendor: LENOVO
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