<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - DP audio does not work with Thinkpad Ultra Dock and DP-to-HDMI converter" href="https://bugs.freedesktop.org/show_bug.cgi?id=103786#c25">Comment # 25</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - DP audio does not work with Thinkpad Ultra Dock and DP-to-HDMI converter" href="https://bugs.freedesktop.org/show_bug.cgi?id=103786">bug 103786</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>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 <a href="https://www.paradetech.com/products/ps176/">https://www.paradetech.com/products/ps176/</a> isn't too forthcoming on the details.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>