[alsa-devel] Lenovo Dock + Thinkpad X260 -> no HDMI audio output

[Sebastian Reichel]

Hi Norbert,

On Wed, Nov 16, 2016 at 11:38:21AM +0900, Norbert Preining wrote:
> I am trying to get HDMI audio output via a Lenovo Dock Ultra in
> combination with a Lenovo Thinkpad X260.
>
> [...]

Lenovo Dock Ultra contains a DP-MST Hub to provide all those
HDMI/DVI/DP ports. Audio over DP-MST is currently not supported
by the i915 driver, but there are patches (developed since ~2014):

https://lists.freedesktop.org/archives/intel-gfx/2016-November/111353.html

-- Sebastian
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