They have an AMD audio card - just one card on the system
Card Advanced Micro Devices [AMD/ATI] SBx00 Azalia (Intel HDA)
driver: snd_hda_intel bus-ID: 00:14.2
Sound: Advanced Linux Sound Architecture v: k4.13.0-38-generic
ALSA mixer shows no speakers

the funny thiong is when I go to the sound settings and test sound that works for right and left but I can not get sound from YouTube.