Surface Pro 3 - Lost audio/mic 10159

[jlangner]

On 10158 had audio, upgraded to 10159 and now none. Clicking test tones just gives "Error - unable to play test tone" ideas?

 

[jlangner]

Uninstalled driver and rebooted, audio wked when driver reinstalled.

 

[Bhawk90]

I am having the same issue on my PC when I change format, or switch to 5.1 or anything. No sound anymore, have to reinstall the driver to make it work again.