1. Add more than one xfce4-pulseaudio-plugin to the panel. (For example, because you have a panel on more than one monitors and a plugin on every panel.)
2. Adjust the volume.
Result:
You get a bubble for every instance of the plugin. If you have three plugins, the volume notification will be displayed three times.
Downstream report: https:/ /bugs.launchpad .net/ubuntu/ +source/ xfce4-pulseaudi o-plugin/ +bug/1769775
To reproduce:
1. Add more than one xfce4-pulseaudi o-plugin to the panel. (For example, because you have a panel on more than one monitors and a plugin on every panel.)
2. Adjust the volume.
Result:
You get a bubble for every instance of the plugin. If you have three plugins, the volume notification will be displayed three times.
See screenshot.
ProblemType: Bug o-plugin 0.4.1-0ubuntu1 ature: Ubuntu 4.15.0- 20.21-generic 4.15.17 o-plugin
DistroRelease: Ubuntu 18.04
Package: xfce4-pulseaudi
ProcVersionSign
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue May 8 00:55:38 2018
InstallationDate: Installed on 2018-05-07 (0 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: xfce4-pulseaudi
UpgradeStatus: No upgrade log present (probably fresh install)