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No Sound over Hdmi at 96khz and above

Question asked by nomnom on Dec 9, 2016



im having an Audio issue with the Firepro M4150 graphics Card in my HP zBook14




Zbook 14 with Firepro M4150
Windows 10 64 Bit
Radeon Software Crimson 16.12.1 (This Issue is also present with the vendor specific HP Driver Package)
HP Ultraslim 2013 Docking Station with Synaptics VMM2230 MST Hub (Firmware Version 2.30.000)
Displayport-HDMI Adapter (Passive, Connected to Port 1)
Onkyo TX-NR818 Receiver


When connected to the Onkyo TX-NR818 Receiver i get no sound at sample Rates over 48khz, however the Intel Display Audio Output has no issues with 24bit / 192khz Files and Device properties show 44.1, 48, 88.2, 96, 176, 192 khz at 16/24 bit as supported Samplerates on both, the AMD Docking outputs and the built-in Intel output.


The default Microsoft Audio driver offers no solution as it´s limited to 48khz which is also Working on the AMD driver.


Are there any alternative HDMI Audio Drivers which might work or is this a Limitation of my MST Hub (i was unable to find more information on the Synaptics MST Hub)?