Windows 10: DisplayPort audio issue with Windows 10

I'm using a Surface Pro 2. After my upgrade from Windows 8.1 to Windows 10, I'm not getting any audio out from the DisplayPort.

I use DisplayPort to HDMI to a receiver. I've upgraded to the latest RealTek audio drivers, but it's not helping. Could there be a different driver issue at play?

Any suggestions appreciated.

:)

 

Digital Audio (HDMI) is permanently muted.

I do not hear audio from my PC speakers or TV speakers when connected from the PC (EliteBook 2540P) via HDMI to the TV when using Skype, also cannot hear audio (mic works) on a WebEx - keep in mind this is an HP laptop using DisplayPort with an HDMI converter.
Speakers work fine for other applications and I can output audio to TV if it is YouTube or other videos with the same DisplayPort to HDMI connection.

I have the IDT High Definition Audio Codec installed, v. 10.0.10240.16384. Intel(R) HD Graphics driver, v. 8.15.10.2900. Windows 10.

The IDT HD Sound Audio Control Panel lets me control all of the parameters with the exception of the Digital Audio (HDMI) selection which is Muted (red button) and will not let me unmute.

This is the first time trying Skype and WebEx on this PC so I cannot relate this issue to previous codecs or versions.

Any ideas how to get Digital Audio (HDMI) enabled?

 

PC with Dual Displayport output with two TVs plugged in can only get Audio to output on one of the TVs?

Thank you for your input. I'd still like to figure this one out, as we may run into this on other standard PC implementations. It could be any HDMI or Displayport output device....a monitor with built in sound, etc. The Question is can you output audio
to two different devices when you have 2X Displayport or HDMI output graphics card. Windows does not appear to have an option for more then one audio output. Someone has to have run into this?!

 

Right-click on your volume icon and click playback devices. Ensure it's selected.

 

Thanks for the suggestion. I've confirmed that the correct playback device is selected, but it makes no difference.

 

have you checked that your DP is DP++ as in capable of pushing out audio? if you got some reaally old DP-HDMI cable or adapter, might be that it hasnt got that ++ qualification

 

The same cables were working fine when I was using Windows 8.1. So it doesn't seem to be a hardware issue.