Since several days ago (something automatically upgraded), I get no sound out of my Lenovo Thinkpad laptop with Ubuntu 18.04. I tried several things other similar threads suggested:
pacmd list-cards
returns 0 cards
lspci -nnk | grep -A2 Audio
returns nothing, and
pulseaudio -k && sudo alsa force-reload
and rebooting does nothing.
How do I get my sound back?
Also -- this seems like a fairly huge defect -- does anyone know what happened in apt-get upgrade to have caused this?
