Hi Jose,

Did you manager to resolve this on Baytrail E3845, I faced this issue on External interface with DP port

LVDS, HDMI,DVI works fine

My system Baytrail E3845:
 
DisplayPort audio in Linux works fine but in Windows is not detected.
I am sure that the OS has the proper graphics drivers because DP Audio works 
with original BIOS in the same HDD Windows OS.
 
Anyone could give me a hint?
Thank you,
J. Trujillo.

Sent from Mail for Windows