Good morning Dan I can confirm that by eliminating PipeWire and reinstalling Pulse-audio, the system returns to work in a regular and perfect way. I therefore confirm that the bug is specific to Pipewire and you have to work on it, you can confirm everything to the developers. For specific information I remember that I use a dedicated sound card that has always been supported by Linux, namely the RME HDSPE-AIO. Having said that I hope that you will also work to improve the management of Gnome 40 which currently on Power architecture is really horrendous. Thanks for everything best regards Maurizio MauryG5