OK, I'm attaching the logs since I could reproduce the bug again.
When upgrading from alsa-utils 1.2.2-1ubuntu1 to alsa-utils
1.2.2-1ubuntu2 with speakers plugged in the 3.5mm jack, I could clearly
hear a "thump" sound when the 3.5mm jack stopped working. Neither a
reboot or a cold boot solved it.
What's weird is that I couldn't reproduce that same thing earlier today,
doing basically the same steps. The only differences were: [1] I had
tested with earphones+mic earlier today and now I'm testing with
speakers (in the same jack) and [2] When I upgraded with speakers
connected I could hear the exact moment when something wrong happened.
As you can guess from the file names ("01" and "07") I have intermediate
log files that I'm not sending yet to avoid attaching superfluous info.
** Attachment added: "Using alsa-utils 1.2.2-1ubuntu2. Sound doesn't work on
the 3.5mm jack."
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1901926/+attachment/5432036/+files/pa-info_07_alsa-utils-ubuntu2_cold_boot_no_sound.txt
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https://bugs.launchpad.net/bugs/1901926
Title:
[HDA-Intel - HDA Intel PCH, playback] No sound at all from headphones
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
There is no sound at all from the headphones (p3 out). Speakers work
fine.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: sartojr 2255 F.... pulseaudio
/dev/snd/controlC0: sartojr 2255 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 28 13:48:59 2020
InstallationDate: Installed on 2020-01-14 (287 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64
(20190805)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=pt_BR:pt:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=pt_BR.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: HDA NVidia - HDA NVidia
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: sartojr 2255 F.... pulseaudio
/dev/snd/controlC0: sartojr 2255 F.... pulseaudio
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [HDA-Intel - HDA Intel PCH, playback] No sound at all
UpgradeStatus: Upgraded to focal on 2020-10-04 (24 days ago)
dmi.bios.date: 11/04/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P03REZ.041.191104.FL
dmi.board.asset.tag: No Asset Tag
dmi.board.name: NP760XBE-XW1BR
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: SGL9947A0Y-C01-G003-S0001+10.0.17763
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP03REZ.041.191104.FL:bd11/04/2019:svnSAMSUNGELECTRONICSCO.,LTD.:pn760XBE:pvrP03REZ:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP760XBE-XW1BR:rvrSGL9947A0Y-C01-G003-S0001+10.0.17763:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.family: Notebook 7 Series
dmi.product.name: 760XBE
dmi.product.sku: SCAI-A5A5-A5A5-A5A5-PREZ
dmi.product.version: P03REZ
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-04-11T15:48:00.584083
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