By default under "Settings/Sound" I see only: "Headphones - Built-in Audio".
Because of which I am not able to use my laptop speakers.
It is only after I plug in a headphone does the speakers work i.e., under "Settings/Sound" then I see "Speakers Built-in Audio".
But then I am not able to use headphones. So basically, I am never able to use headphones.
== EDIT == I have had this issue on Ubuntu 18.04 also. I thought upgrading might fix the issue. But it didn't.
System: Dell Latitue E6430
OS: Ubuntu 19.04
OS type: 64 Bit
Please suggest how could I fix it.