Public bug reported:
1)
lsb_release -rd
No LSB modules are available.
Description: Ubuntu 24.04.1 LTS
Release: 24.04
2) Not sure about which package is affected so not providing apt-cache
policy.
3) What you expected to happen
* Machine makes no electronically generated sound when active, in a suspended
state (or, obviously, off).
* Machine plays desired sound through integrated speakers, unless a cable is
plugged in the jack or another output (e.g. Bluetooth) is selected.
4) What happened instead
The machine has sound issues every day, more often than not.
Most of the problems are not about impossibility of playing desired
sound, rather the existence of undesired sound when no sound is being
played. Most of the information below was recently checked though some
details are from older memories and might not be exact. Specific things
can be tested again on demand to ascertain them (some need to wait for
an occurrence to come up).
All noise reported below is not fan noise. Actually the machine has no
fan. The noise is electronically generated hiss and what we would call
"digital splutter". We have one recording that we can provide and more
can be made if useful.
* (observed in the last hour) Click sounds now and then. Most of the time (not
at all times, though) a high pitch continuous hiss sound with digital splutter
is heard. The noisy hiss is not very loud but sufficient to be annoying in a
moderately quiet place.
* (observed in the last hour) When suspending the laptop, there is a 5 second
gap between the time the screen dims and the time the power LED changes. During
this time, the hiss is different. Then, while the machine is suspended the
power LED brightness modulates with period around 4 seconds and the hiss sound
also: it is different depending on the current brightness of the LED.
* When playing sound successfully through the integrated speakers, clicks and
hiss are momentarily not heard. Playing digital silence suffices to momentarily
suppress clicks and hiss.
* Sometimes no desired sound can be played and pavucontrol reports only "dummy
output" and no click or hiss is heard.
* Bluetooth earphones can be set up and used. The sound heard through them has
no click or hiss.
* The laptop has an audio output jack. When playing sound through it to an
external audio system, the desired sound is also heard through the laptop
speakers at the same time.
* When suspended, the battery drains in about two days. It sounds reasonable
that sounds heard are correlated to something that consumes power when
suspended.
Thank you for your attention. We are willing to do any reasonable
experiment or workaround to be tried.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.8.0-41.41-generic 6.8.12
Uname: Linux 6.8.0-41-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: gabriel 1522 F.... pipewire
/dev/snd/controlC0: gabriel 1526 F.... wireplumber
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 1 16:02:33 2024
InstallationDate: Installed on 2022-10-17 (685 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
MachineType: UNOWHY Y13G011S4EI
PackageArchitecture: all
ProcEnviron:
LANG=fr_FR.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/03/2021
dmi.bios.release: 0.5
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V0.5.1_P1S0M2E0F2L6B0T0P2G00A0U0D671_ENE
dmi.board.asset.tag: Default string
dmi.board.name: EM_IG116_200B_ENE_F_V2.0
dmi.board.vendor: UNOWHY
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrV0.5.1_P1S0M2E0F2L6B0T0P2G00A0U0D671_ENE:bd09/03/2021:br0.5:svnUNOWHY:pnY13G011S4EI:pvr1.0:rvnUNOWHY:rnEM_IG116_200B_ENE_F_V2.0:rvr1.0:cvnDefaultstring:ct10:cvrDefaultstring:skuY13G011S4E:
dmi.product.family: Education
dmi.product.name: Y13G011S4EI
dmi.product.sku: Y13G011S4E
dmi.product.version: 1.0
dmi.sys.vendor: UNOWHY
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2078632
Title:
Click and hiss noises when not playing sound and sometimes crash on
suspend with "failed to power down DSP during suspend"
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