Internal speaker (Audio) is not working in Ubuntu 20.04 LTS after upgrading from Ubuntu 18.04 LTS
Solution 1:
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
Solution 2:
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
Solution 3:
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/
Solution 4:
What fixed it for me after an upgrade to 20.04 was:
sudo apt purge timidity-daemon
Then reboot.
Quick and easy so worth trying!