Hi
I can’t get any sound of my RPI2. If I look in the sound control panel all I see is the dummy device. I tried to attach a usb sound card. I can see it is recognized (dmesg) but still no sound device found…
Any hints?
Regards Stephan
HI Stephan,
there might be something missing from when you did your initial install, try the following 2 commands and restart if anything updates:
sudo apt-get --fix-missing install
The above command downloads and installs any missing packages on your system.
sudo apt-get --fix-broken install
The above command downloads and installs any broken dependencies on your system.
Hi Wolfman
I tried this, but no missing or broken installation packages.
Could it have something to do, that I connect to the RPi with xrdp? I tried every sound settings in the remmina client, but no success.
I will connect the RPi to a local Monitor and Keyboard and try again.
Regards, Stephan
Hi Stephan,
try installing the non-free firmware package as it is not installed by default!:
sudo apt-get install linux-firmware-nonfree
Reboot after install with your USB soundcard attached and then run this terminal command to see if it is in a “Cold State”!:
lsusb
You must also make sure that "Canonical" is active in "Other Software" in your software sources manager otherwise you won't be able to install "non-free software"!. 
