I have not checked if 5.x still uses pulseaudio and could be unrelated but just in case...
Before opening any apps, open a terminal and enter the command :
sudo pulseaudio --kill
Then check if the audio workz!
Before opening any apps, open a terminal and enter the command :
sudo pulseaudio --kill
Then check if the audio workz!

- TheDead (TheUxNo0b)
If my blabbering was helpful, please click my [Thank] link.
If my blabbering was helpful, please click my [Thank] link.