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I had installed Gstreamer and ALSA plugins to work on some experiments. Steps followed for the installation of the plugin: https://tsn.readthedocs.io/avb.html#plugins-installation

However, after the installation was completed I restarted my PC after which the audio has stopped working. In the setting in the output device, dummy output shows up while for the input device there is no option. I have dual boot in my system so, in Windows, the audio works fine, thus it's clearly not a hardware problem.

I uninstalled the plugins as well as tried reinstalling Ubuntu audio drivers, however, the issue still persists. I believe while setting up the plugins some configuration has changed.

Ubuntu Version: 20.04

Linux Kernel Version: 5.11.0-27-generic

Any help would be highly appreciated.

codingenthusiast
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  • Please add all output listed in https://askubuntu.com/questions/1258510/only-dummy-output-sound-in-ubuntu-20-04-after-reboot-broken-driver-modul so you provide others with enough information. – sancho.s ReinstateMonicaCellio Sep 07 '21 at 12:41

1 Answers1

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There is a range of possible causes

You could try

  1. Updating the kernel and/or installing linux-modules-extra

  2. alsa

     sudo apt install --reinstall alsa-base pulseaudio
 sudo alsa force-reload

  3. timidity

     sudo apt purge timidity-daemon

  4. Driver config

     echo "options snd-hda-intel model=generic" | sudo tee -a /etc/modprobe.d/alsa-base.conf
 echo "options snd-hda-intel dmic_detect=0" | sudo tee -a /etc/modprobe.d/alsa-base.conf

If the above doesn't work, I suggest you add all output listed in Only "Dummy output" (sound) in Ubuntu 20.04 after reboot - Broken driver / module . It would take you some 5 minutes...

sancho.s ReinstateMonicaCellio
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