I updated my Surface Pro 3 From Ubuntu 17.10 to Ubuntu 18.04 (did a clean install) and now I can only get audio when using the headphone jack.
I have already tried all these:
troubleshooting guide
this answer
another answer
I went back and tested the live CD and even the live cd has no audio through the speakers. so this must be related to 18.04. I never had sound issues before and under windows audio still works correctly.
Does anyone have any idea how to fix this?
Update: here is my alsa iformation
Update HOLY CRAP... I removed the /etc/modprobe.d/alsa-base.conf and now sounds works ! i am going to try adding line by line to see which config entry was breaking the audio
alsamixer
alsamixer
and it worked. Thank you.