Ubuntu Studio 20.10 sound card not picked up

Giorgio Zarrelli il giovedì, 25 Marzo, 2021

I got my PC hooked up to a kvm and I switch between my computers quite often. Connected to the kvm there are a bunch of peripherals: a keyboard, a mouse, a monitor and a Behringer U-Phoria sound card.

Every now and then, when I switch back to my Ubuntu PC, it fails to pick the sound card up and even restarting Pulseaudio does not solve the issue.

So, I created a small script in my home directory and called it restart-pulse-audio.sh with the following content:

`!/bin/sh`

systemctl --user restart pulseaudio systemctl --user restart pipewire

Just run it whenever your card is not picked up as you switched it off/on and it should get it alive and kicking.

Enabling Amazon Echo as Bluetooth speaker in Debian 9

Giorgio Zarrelli il lunedì, 25 Dicembre, 2017

Trying to pair my new Amazon Echo to my Xiaomi laptop I received the following error:

blueman.bluez.errors.DBusFailedError: Protocol not available

The solution is quite simple:

sudo apt-get install pulseaudio-module-bluetooth

Then:

pactl load-module module-bluetooth-discover

Just add something like this to your

/etc/bash.bashrc

# Enable Amazon Echo as Bluetooth speaker
# First: apt-get install pulseaudio-module-bluetooth
# Then:

pactl load-module module-bluetooth-discover

The comments will remind you on what you have to install and the last line will run the required command at you OS startup.