** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: Confirmed
** Changed in: linux (Ubuntu Focal)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1866357
Title:
Pop sound from build-in speaker during cold boot and resume from S3
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Focal:
Fix Committed
Bug description:
[Description]
On a Dell Wyse 5070 ThinClient device with 18.04 installed, during cold boot
and resume from S3, internal speaker will have a noticeable short pop noise.
[More detail]
There are similar bugs reported indicating it's related to codec powersaving
[1]. On some devices, disable powersaving can workaround it, but the same
workaround does not work on this device.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821663
[Experiment]
With Ubuntu 16.04 (4.13 kernel) installed --> NO pop noise
With Ubuntu 16.04.x (4.15 kernel) installed --> pop noise
With Ubuntu 18.04.x (4.15, 5.0 kernel) installed --> pop noise
So I started testing kernels between 4.13 and 4.15, found the issue does not
present before 4.15.0-58 kernel (including 4.15.0-58), and kernel after that
started to have the pop noise.
[HW info]
Codec: Realtek ALC3253
00:0e.0 Audio device [0403]: Intel Corporation Device [8086:3198] (rev 03)
Device is not with me at this moment, I will provide more info if required.
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1901 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-bionic-amd64-20180608-47+beaver-osp1-sanbernardino+X100
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2020-03-09 (0 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary
20180608-09:38
MachineType: Dell Inc. Wyse 5070 Thin Client
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-40-generic
root=UUID=22fa172b-895b-4061-834e-d616380befc5 ro mem_sleep_default=deep quiet
splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.3.0-40.32~18.04.1-generic 5.3.18
RelatedPackageVersions:
linux-restricted-modules-5.3.0-40-generic N/A
linux-backports-modules-5.3.0-40-generic N/A
linux-firmware 1.173.9
Tags: bionic
Uname: Linux 5.3.0-40-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/08/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.0
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.5.0:bd01/08/2020:svnDellInc.:pnWyse5070ThinClient:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct3:cvr:
dmi.product.family: Wyse Thin Client 5000 Series
dmi.product.name: Wyse 5070 Thin Client
dmi.product.sku: 080C
dmi.sys.vendor: Dell Inc.
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