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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 ~/.config/pulse, 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 

cat /proc/asound/cards

returns no sound cards

Apologize if questions is framed in wrong or incorrect way, it's my first time.

Pablo Bianchi
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oarsp
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    Does this answer your question? [Persistent Dummy Output](https://askubuntu.com/questions/800262/persistent-dummy-output) – Pablo Bianchi May 08 '20 at 14:16

1 Answers1

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This worked for me:

sudo apt-get remove timidity
sudo reboot
Pedro Rolo
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  • Please consider elaborating your answer indicating why do you think your suggested methodology should work. – Masroor Jun 30 '20 at 02:47