Changing to "Analog Surround 2.1 Output" doesn't automatically show subwoofer bar.
Unfortunatelly I can't provide any pictures at the momment. The bug occurs whenever switching the output profile from default or Analog Surround 4.0 Output to Analog Surround 2.1 Output, basically when choosing Analog Surround 2.1 Output on a Macbook Pro 2012 with Fedora 32 and GNOME 3.36.5, the subwoofer volume bar does not automatically appear, you need to open another panel and return to the Sound panel for it to appear. It is not a big deal, but would be good if didn't happen.
I didn't test this on other machines nor on other GNOME versions unfortunatelly.
Steps to reproduce:
- Open GNOME Settings
- Change from default or Analog Surround 4.0 Output to Analog Surround 2.1 Output
- Subwoofer volume bar doesn't appear.