No audio via DP to HDMI adapter

1st Official Post

    Hi,

    I have a dual boot system of LibreELEC 7.3 and Windows 7 Pro connected to my LCD via a Displayport to HDMI adapter.
    The GPU and Soundcard are connected via an internal spdif cable to send audio through the DP-HDMI adapter.
    In Windows, if I set the default sound device to 'digital audio (hdmi)' audio works fine including Kodi.

    However, I can't seem to get audio through HDMI in LibreElec, external speakers via 3.5mm jack work fine.

    I have tried all 8 of the options listed in System, Audio but none output sound.
    It only seeems to list all the external audio jacks on the soundcard, there is no option for HDMI audio

    Here's a sample of whats listed

    ALSA Default (Creative X-Fi front/wavein)
    ALSA (Creative X-Fi @card-xfi, dev=0/front,wave/front)
    ALSA (Creative X-Fi IEC958 non-audio s/pdif
    Pulse, Bluetooth Audio (Pulse Audio)


    If anyone can help with this it would be much appreciated

    System Details
    Dell Precision 3500
    GPU = Nvidia FX580
    Chipset = Intel X58
    CPU = Xeon W3520
    Audio = Dell Creative Soundblaster SB0880 X-Fi Titanium