There is no audio output from my earphone that is connected to the monitor. I tested the earphone with another laptop and it is working fine.

I tried the following solution from similar questions but the issue still persist:

  1. No sound in Ubuntu 18.04

killall pulseaudio; rm -r ~/.config/pulse/*

It returned 21 but sound is still unavailable.

  1. No sound in Ubuntu 18.04 LTS after upgrade from 16.04 LTS

killall pulseaudio; rm -r ~/.config/pulse/*

  1. HDMI sound not working after upgrading to 20.04
rm -r ~/.config/pulse/
  1. Audio stopped working Ubuntu 19.04
sudo apt-get remove --purge alsa-base
sudo apt-get remove --purge pulseaudio
sudo apt-get install alsa-base
sudo apt-get install pulseaudio
sudo alsa force-reload
  1. sudo alsamixer Then F6 to select sound card and change the setting then reboot.

The Playback and Output Devices of pavucontrol both are using HDMI/Display Port 2 and the audio bar is fluctuating since I have YouTube running but no audio output at all. The following is the snapshot of my pavucontrol:

pavucontrol snapshot

enter image description here

  • What computer are you using? I had a similar issue with an acer laptop of mine.
    – One_Sleeve
    Apr 16, 2021 at 22:22
  • @One_Sleeve It is a custom PC that I built. In the end, I reinstalled Ubuntu,
    – jwen
    Apr 21, 2021 at 16:16

1 Answer 1


have you tried,

sudo alsamixer

and then unmute (Press m and up arrow to increase volume) the necessary things and reboot.

  • Yes, I did that too. F6 to select sound card and change the setting then reboot.
    – jwen
    Jul 26, 2020 at 12:34

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