Default User <hunguponcontent@gmail.com> writes: > BTW, > sudo apt show firmware-sof-signed > shows firmware-sof-signed as installed for both Debian Live 11.0 > and Debian Live 11.6. : OK, next step is to run sudo dmesg | grep -i audio in a terminal to see if there's any problem loading the driver or firmware and what other messages there might be. And run aplay -l, does that list any sound device?