[Bug 103786] DP audio does not work with Thinkpad Ultra Dock and DP-to-HDMI converter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103786

--- Comment #25 from Jani Nikula <jani.nikula at intel.com> ---
One possibility: The DP-HDMI converter PS176 requires manually setting the AVI
infoframes using DP AUX. This is what we do for the on-board LSPCON chips; see
commits 799a964ffe0b ("drm/i915: Write AVI infoframes for Parade LSPCON") and
7cbf19fd54ff ("drm/i915: Write AVI infoframes for MCA LSPCON").

If that's the case, then this would not even be Intel specific as we're taking
about a cable adapter.

Unfortunately https://www.paradetech.com/products/ps176/ isn't too forthcoming
on the details.

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