Hi Guys,
Same problem than a lot of people: Impossible to output HDMI sound to my Samsung UHD TV from my Surface Pro 3 though "Intel sound for screen" with green levels moving but nothing earable.
In fact sometimes (one on ten), after having done the @brun.ws method, combined with changing from DVD to Studio quality, sound appears, but at the next restart, its lost again.
But most of the times, no sound.
Very very disappointing to see such a common problem not solved four years after its first occurrence.
Some facts and tricks I discovered:
Surface Pro 3 Core I5 with 8Go/256Gb
Windows 10.0.15063
Intel Sound or screen 6.16.0.3199 (27/02/2017) (got hrough DriverEasy)
Samsung UHD 49KU6650
MiniDisplayPort Conversion through Hama Converter to HDMI 1 DVI port of the TV set.
Tricks:
HDMI sound format of TV has to be set to bitstream and not to PCM. (format not supported message in the configuration panel)
Cable length does not matter as I've got sound sometimes with any length (2 to 15m)
Mini display port to HDMI matters for the display, as with some, no picture at all!
Will somebody @Microsoft got this corrected?
Please!