Score:0

Linux 20.04 Dummy Output and Sound Card Not Detected

cn flag

I am completely new to Linux. I have Dell Inspiron and I have Linux Ubuntu 20.4. And I’m just starting to set some things in order. The other day I got the right codecs to be able to play videos.

But now I don't have any sound...
And I'm struggling to find the solution. So with a lot of research these are the facts -

  • In Sound Settings it displays Dummy Output.

  • I ran - pacmd list -cards - which gave me

    0 card(s) available ```

  • So, it's not detecting a Sound Card

  • I also ran - alsamixer and it returned

    No such file or directory

  • When I ran - sudo aplay -l and it returned

    device_list:276: no soundcards found...

When I play a video with sound then go to settings under Output Device i can see that it is picking up the sound but its not coming through the speakers. Can anybody tell me the right steps to take please?

N0rbert avatar
zw flag
Check permissions as shown in https://askubuntu.com/q/1349221/66509 .
sancho.s ReinstateMonicaCellio avatar
pl flag
https://askubuntu.com/questions/1258510/only-dummy-output-sound-in-ubuntu-20-04-after-reboot-broken-driver-modul
Score:0
cn flag

I ran into a similar problem, All I needed to do was add

options snd-hda-intel dmic_detect=0

to the end of the file /etc/modprobe.d/alsa-base.conf

I still havent gotten my on-board speakers to work but now the soundcard shows up USB headphones and bluetooth headphones/speakers work fine.

If it doesnt you can also try adding

options snd-hda-intel model-generic to the same file

It may help!

Snoozirs avatar
cn flag
I ended up doing both lines of codes and on both accounts it said - permission denied. But I decided to have another look at the sound in my settings and instead of saying Dummy Output it said - Speaker -sof-hda-dsp. so I ested it and it worked on my on-board speakers!!! Thank you so so so much!! I'm sorry that you still don't have sound on your on-board speakers.
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