I am using Ubuntu 16.04. Audio was working perfectly, even jack, I was able to listen to music using headphones or external speakers.
Today I tried to install tuxguitar from its .deb installer and suddenly, the audio through the jack connector does not work.
I am not able to plug either headphones or external speakers. However, audio works perfectly using the internal speaker of my laptop. I have read several threads but solution at all find it.
Any suggestion please?
Volume Control seems to be working because there is movement on the audio volume bar.