Internal speaker (Audio) is not working in Ubuntu 20.04 LTS after upgrading from Ubuntu 18.04 LTS
Your speakers may be detected as unplugged which causes them to be ignored.
Temporary fix:
sudo apt install pavucontrol- Run
pavucontrol - Configuration tab > Profile > Analogue Stereo Output (unplugged) (unavailable)
Speakers should work but it will reset when headphones are unplugged or system rebooted.
Permanent fix:
sudo apt install alsa-tools-gui- Run
hdajackretask - Parser hints > jack_detect = no
- Apply now
- Install boot override
Just in case somebody reached this question looking for a solution. The only native solution (no need to do something external) is provided by @Nate on this link https://askubuntu.com/a/37609/9598 which I reproduce partially here to give you a clue on how to fix this problem.
I [...] noticed that the ACLs weren't set in
/dev/snd
sudo setfacl -m u:$USER:rw /dev/snd/*
and then do a reboot of your computer.
Running this command in a terminal will fix the issue.
Thank you very much Michael Butler
I think i have a workaround for your problem: Try
sudo alsa force-reload
This brought my soundcard back to life. But it doesn't survive a reboot, so I am working on making the change persistent... See:
https://www.maketecheasier.com/fix-no-sound-issue-ubuntu/