** Changed in: alsa-driver (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1894833
Title:
[Dell XPS 15 7590, Realtek ALC3266, Mic, Internal] Lots of background
noise on internal microphone
Status in alsa-driver package in Ubuntu:
Invalid
Bug description:
Problem: Lots of background noise on the internal microphone. If I
record it in Audacity it seems that most of the noise is in the Left-
Front channel. The Right-Front channel is still noisy/bad quality, but
not as bad.
Hardware: Dell XPS 15 7590 laptop (basically 2019 model)
OS: Ubuntu 20.04 fresh/plain installation:
$ lsb_release -rd
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Other tests:
- If I use a external/USB headsets+microphone sound is fine
- If I boot from Ubuntu 20.04 live USB it still has the problem
- Tested with other versions/distributions, but it still has the problem:
ubuntu-19.10-desktop-amd64, linuxmint-20-cinnamon-64bit,
Fedora-Workstation-Live-x86_64-32-1.6, xubuntu-20.04.1-desktop-amd64,
pop-os_20.04_amd64_nvidia_13, ubuntu-18.04.5-desktop-amd64
- I tried many steps involving changing config files e.g.
https://wiki.ubuntu.com/Audio/PositionReporting + reboot, none fixed
the problem, reverted the config files back after every change
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
Uname: Linux 5.4.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mircea 1400 F.... pulseaudio
/dev/snd/pcmC0D0c: mircea 1400 F...m pulseaudio
/dev/snd/pcmC0D0p: mircea 1400 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 8 12:33:31 2020
InstallationDate: Installed on 2020-09-06 (2 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Mic, Internal
Symptom_PulseAudioRecordingTest: PulseAudio recording test through plughw:PCH
successful
Symptom_Type: High background noise, or volume is too low
Title: [XPS 15 7590, Realtek ALC3266, Mic, Internal] Background noise or low
volume
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/03/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.1
dmi.board.name: 0VYV0G
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.8.1:bd07/03/2020:svnDellInc.:pnXPS157590:pvr:rvnDellInc.:rn0VYV0G:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 7590
dmi.product.sku: 0905
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-09-08T11:02:41.506649
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