After installing Ubuntu 18.04.3 LTS I have been unable to restore audio. This is my first time using a linux based OS and I am only a beginner so I am still coming to grips with the OS.
When I am logged out the sound works but as soon as I log in the sound fails.
I am guessing it is related to the fact that I cannot see any of Additional Drivers in order to install the proprietary driver.
I have tried most of the usual alsamixer and pulse related troubleshoots but with no success.
Any suggestions to get the sound back up and running would be much appreciated.