ubuntustudio-bugs team mailing list archive

[Florian Hars <1898352@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Scenario:
=========

1. A mainboard (Asus Prime 570-Pro) with onboard audio:
c:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller [1022:1487]
        Subsystem: ASUSTeK Computer Inc. Starship/Matisse HD Audio Controller [1043:8733]

2. The device is configured as Analog Stereo Duplex in pavucontrol
3. A microphone is plugged into the pink input jack
4. The VU-meter in the pavucontrol "Input devices" tab displays plausible levels for the mic
5. The mic works in most applications (mumble, teams)

Steps to reproduce:
===================

1. Start audacity

Expected behaviour:
===================

The microphone should continue to work, and Audacity should be able to
use it

Observed behaviour:
===================

As soon as audacity starts, the VU-meter in pavucontrol is updated only
about once a second, and the displayed levels have no discernible
relation to the levels of moinse I make as displayed e.g. for the USB
Mic in my webcam. If I start to record using the microphone in Audacity,
audacity records with a speed of maybe 0.25 recorded seconds per second
of wall clock time, recording only weird sounds, if anything at all. The
microphone stays unusable for all applications until I restart the
computer.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: audacity 2.4.2~dfsg0-3
ProcVersionSignature: Ubuntu 5.8.0-20.21-lowlatency 5.8.10
Uname: Linux 5.8.0-20-lowlatency x86_64
ApportVersion: 2.20.11-0ubuntu48
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct  3 13:21:59 2020
InstallationDate: Installed on 2020-05-28 (127 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: audacity
UpgradeStatus: Upgraded to groovy on 2020-10-03 (0 days ago)

** Affects: audacity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy

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https://bugs.launchpad.net/bugs/1898352

Title:
  audacity kills rear microphone input on Starship/Matisse HD as soon as
  it starts

Status in audacity package in Ubuntu:
  New

Bug description:
  Scenario:
  =========

  1. A mainboard (Asus Prime 570-Pro) with onboard audio:
  c:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller [1022:1487]
          Subsystem: ASUSTeK Computer Inc. Starship/Matisse HD Audio Controller [1043:8733]

  2. The device is configured as Analog Stereo Duplex in pavucontrol
  3. A microphone is plugged into the pink input jack
  4. The VU-meter in the pavucontrol "Input devices" tab displays plausible levels for the mic
  5. The mic works in most applications (mumble, teams)

  Steps to reproduce:
  ===================

  1. Start audacity

  Expected behaviour:
  ===================

  The microphone should continue to work, and Audacity should be able to
  use it

  Observed behaviour:
  ===================

  As soon as audacity starts, the VU-meter in pavucontrol is updated
  only about once a second, and the displayed levels have no discernible
  relation to the levels of moinse I make as displayed e.g. for the USB
  Mic in my webcam. If I start to record using the microphone in
  Audacity, audacity records with a speed of maybe 0.25 recorded seconds
  per second of wall clock time, recording only weird sounds, if
  anything at all. The microphone stays unusable for all applications
  until I restart the computer.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: audacity 2.4.2~dfsg0-3
  ProcVersionSignature: Ubuntu 5.8.0-20.21-lowlatency 5.8.10
  Uname: Linux 5.8.0-20-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu48
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Oct  3 13:21:59 2020
  InstallationDate: Installed on 2020-05-28 (127 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  SourcePackage: audacity
  UpgradeStatus: Upgraded to groovy on 2020-10-03 (0 days ago)

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