It appears this apples to all sound cards (yes, it's just chips so bear with me) and it appears to have helped many avoid the service shop.
The sound on my laptop suddenly shut off, and it will no longer play from the speakers or the headphone jack, however will work with an external Bluetooth device. I've tried enabling and disabling the speakers, and troubleshooting, but none of it has worked so far.
I have a HP pavillion x360 cd-0073tu
Any help is appreciated, cheers

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic