sound - only dummy output in ubuntu 20.04

Asked by Chany

I have no sound in my ubuntu 20.04
I have tried a lot of things, but with no success. Audio only works with headphones.
could someone help please...

$ pacmd list cards | egrep -i "output|active"
 argument: <sink_name=auto_null sink_properties='device.description="Dummy Output"'>
  device.description = "Dummy Output"
  device.description = "Monitor of Dummy Output"
0 source output(s) available.

$ sudo lspci -vv | grep -i audio
00:1f.3 Audio device: Intel Corporation Device 51c8 (rev 01) (prog-if 80)

ALSA Information Script v 0.4.64
--------------------------------

This script visits the following commands/files to collect diagnostic
information about your ALSA installation and sound related hardware.

  dmesg
  lspci
  aplay
  amixer
  alsactl
  /proc/asound/
  /sys/class/sound/
  ~/.asoundrc (etc.)

See '/usr/sbin/alsa-info --help' for command line options.

alsactl: save_state:1595: No soundcards found...
cat: /tmp/alsa-info.1fq2MBPWfF/alsactl.tmp: No such file or directory
Automatically upload ALSA information to www.alsa-project.org? [y/N] : y
Uploading information to www.alsa-project.org ... Done!

Your ALSA information is located at http://alsa-project.org/db/?f=2cab8ba99bc9766f7a58b46c9725aeb87e9721d1

Question information

Language:
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Status:
Solved
For:
Ubuntu alsa-driver Edit question
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Solved by:
Manfred Hampl
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Best Manfred Hampl (m-hampl) said (last edit ):
#1

Some hits that I get from a web search https://www.google.com/search?q=8086%3A51c8+ubuntu+driver let me assume that you need kernel version 5.14 or higher.

I suggest that you try installing the HWE kernel.

sudo apt install linux-generic-hwe-20.04

Revision history for this message
Chany (chanyi) said :
#2

Hi,
the version (as appears also in the ALSA info link):
Driver version: k5.4.0-136-generic
I was just upgraded from ubuntu V18 to V20.04 due to the sound issue, but the issue was not resolved.

Couldn't the command you suggested destroy something?
Because I upgraded in the usual way

Revision history for this message
Chany (chanyi) said :
#3

I did it and now it works!!! after restart...
Thank you!

Revision history for this message
Chany (chanyi) said :
#4

Thanks Manfred Hampl, that solved my question.