So my device output was working fine until one day suddenly it just said dummy output. I then mistakenly upgraded Ubuntu as well. Until recently Bluetooth headphones were working but now even they have stopped working. Only wired headphones are working.
I tried pulse audio purge remove,
killall, start, remove
alsa force-reload, and rebooting my device but none of the methods have fixed my dummy output problem.
lspci -nnk | grep -A2 Audio
gives no output
and no sound cards are detected
returns no sound cards
Apologize if questions is framed in wrong or incorrect way, it's my first time.