I'm genuinely confused. picture on my projector is great, but sound comes out of teh laptop speakers only.

USB Audio Device Properties
Device status:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
it started right after teh AMD driver update. I've checked the volume mixer, default device, everything I know of. there's simply no HDMI output to choose. is there a component I need to install separately? my family is now watching with subtitles and judging me, so any help would be very welcome. I am comfortable reinstalling the driver if that is what it takes. what am i doing wrong??
