Description of problem:
When you try to adjust the audio volume via the volume control icon by turning the mouse wheel, sound instantly stops. The volume level indicator moves, but the sound is muted or possibly another output device is selected.
Version-Release number of selected component (if applicable):
Linux host 5.11.16-300.fc34.x86_64 #1 SMP Wed Apr 21 13:18:33 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Steps to Reproduce:
1. Listen to some audio (in my case radio stream in Clementine)
2. Hover the mouse pointer over the volume control icon in the top bar and turn the mouse wheel to adjust the volume (that's how it worked in previous versions of Fedora, before pipewire)
Audio stops instantly (as if muted), although the audio feed is still received.
Volume should in-/decrease depending in direction the mouse wheel is turned.
Audio can be reestablished by the following steps:
1. Open Settings -> Sound
2. Change the current output device to some other settings
3. Change the output device back to the device with which you listened to the audio beforehand.
In my case, the output device is a Logitech CMI8738/CMI8768 PCI Audio (Aureon 5.1), analog output, configuration: Analog Stereo Output.