Public bug reported:
Sound Quality is poor. When I am powering up the volume to 100% audio
sounds distorted. I am using Windows 8.1 in this very laptop as well
where the audio is working perfectly. So, it's not a hardware related
problem. Audio level is low too. Thanks.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.10.0-35.39~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-35-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0c: rafin 1677 F...m pulseaudio
/dev/snd/controlC0: rafin 1677 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Sep 28 22:02:35 2017
InstallationDate: Installed on 2017-09-25 (3 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Digital Out, HDMI
Symptom_Type: High background noise, or volume is too low
Title: [HP ProBook 4540s, Intel PantherPoint HDMI, Digital Out, HDMI]
Background noise or low volume
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/29/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68IRR Ver. F.40
dmi.board.name: 17F6
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 58.1D
dmi.chassis.asset.tag: 2CE3070VGQ
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68IRRVer.F.40:bd01/29/2013:svnHewlett-Packard:pnHPProBook4540s:pvrA1009002:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1D:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4540s
dmi.product.version: A1009002
dmi.sys.vendor: Hewlett-Packard
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1720177
Title:
[HP ProBook 4540s, Intel PantherPoint HDMI, Digital Out, HDMI]
Background noise or low volume
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