[Bug 1837255] [NEW] Fluidsynth/Qsynth stops other multimedia applications

[Jacopo Carravieri]

Public bug reported:

As soon as I start Qsynth every browser tab which is playing multimedia
(YouTube, Twitch) in every browser (tested on Firefox and Chromium)
stops working and starts an endless loading.

But if I close Qsynth things gets back to normal immediately.

I tried with Debian Buster and Qsynth can't even produce a sound. At
least on Ubuntu it works :) even if exclusively :(

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.34
ProcVersionSignature: Ubuntu 4.18.0-25.26~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-25-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Fri Jul 19 22:45:06 2019
InstallationDate: Installed on 2019-05-02 (78 days ago)
InstallationMedia: Kubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade

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https://bugs.launchpad.net/bugs/1837255

Title:
  Fluidsynth/Qsynth stops other multimedia applications

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  As soon as I start Qsynth every browser tab which is playing
  multimedia (YouTube, Twitch) in every browser (tested on Firefox and
  Chromium) stops working and starts an endless loading.

  But if I close Qsynth things gets back to normal immediately.

  I tried with Debian Buster and Qsynth can't even produce a sound. At
  least on Ubuntu it works :) even if exclusively :(

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.34
  ProcVersionSignature: Ubuntu 4.18.0-25.26~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-25-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Fri Jul 19 22:45:06 2019
  InstallationDate: Installed on 2019-05-02 (78 days ago)
  InstallationMedia: Kubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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