Hi I am new to Linux and I wanted to try it out on my Macbook Pro 2018, but didn't want to install it on my main drive since it is only 128Gb, so I bought an external drive and was able to install it no problem. My only issue the audio. I get no sound no matter what I do. I have tried everything on this site https://itsfoss.com/fix-sound-ubuntu-1304-quick-tip/