Ubuntu 20.04: Earphones don't output any sound after ubuntu-restricted-extras installation

Environment: Fresh installation of Ubuntu 20.04 on Dell Inspiron 5567 laptop.
Related softwares installed: VLC and FFmpeg installed (haven't had any problems with these)
Problem: Sound doesn't come out of the earphones.
Recent changes to the system: Installed ubuntu-restricted-extras.
Further details: Sound works on in-built speakers. On earphones, when sound supposed to come there's a one-time faint pop sound comes. And that's it. It detects as headphone and shows it emits sound on settings and it shows sounds are working on the scale. [image attached]
Special note: Everything works normally and sounds working on same earphones, same laptop on Ubuntu 20.04 live session.
Tried solutions: Removing ubuntu-restricted-extras didn't fix the problem. Tried to fix it on alsamixer no luck. pulseaudio shows the same results as the sound settings shows.

PS: Reinstalling the OS isn't an option right now.

3 Answers

for a temporary fix Run

alsactl restore

after plugging in headphones

to make it persistent so it survives a reboot run

sudo alsactl store

Install "pulseaudio volume control"
sudo apt install pavucontrol
Launch it from menu or using "pavucontrol" command.

In "pulseaudio volume control" configuration tab, check "profile" is analog.
In output device tab, test changing port to "headphone" or "speaker". Click the green button near "internal audio" .
2 commands to reset pulseaudio config:
mv .config/pulse .config/pulsebak killall pulseaudio
In alsamixer, check that "headphone" and "speaker" faders are muted and unmuted when connecting/disconnecting jack.
Another post indicates this fix : disable audio in bios, then enable again
if dualboot, disable fastboot in windows.

I updated to ubuntu focal fossa 20.04 from 18.04 and suddenly the sound and the mic stopped working.

As I am a beginner , I wasn't able to make correct changes in the alsa mixer . The other solutions in this post didn't work for me.

So, I use the following command to add the GUI version of the alsa tools. This can be done by the following commands:

sudo apt install alsa-tools-gui
hdajackretask

after this use the override option corresponding to the headphone and check the override option and apply changes.

If it works now, again reboot and check. In case , it doesn't work after reboot, you can use the Install boot override.