<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - DP audio does not work with Thinkpad Ultra Dock and DP-to-HDMI converter" href="https://bugs.freedesktop.org/show_bug.cgi?id=103786#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - 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:sriramx.periyasamy@intel.com" title="Sriram Periyasamy <sriramx.periyasamy@intel.com>"> Sriram Periyasamy</a> <pre>(In reply to Jan Hoffmann from <a href="show_bug.cgi?id=103786#c0">comment #0</a>) > Created <a href="attachment.cgi?id=135529" name="attach_135529" title="dmesg: Dock DP connector with converter">attachment 135529</a> <a href="attachment.cgi?id=135529&action=edit" title="dmesg: Dock DP connector with converter">[details]</a> > dmesg: Dock DP connector with converter > > I'm using a T460 with the Thinkpad Ultra Dock (contains Synaptics DP MST > hub) and a DP-HDMI converter (CAC-1070, based on PS176) to connect a 4K TV. > > In this configuration the DP audio output is detected, but no audio can > actually be heard. When connecting directly via HDMI or using the converter > on the internal DP port of the laptop, audio works fine. > > I have attached the dmesg output with drm.debug=0xe for the following test > cases: > > Dock DP connector with converter -> no audio > Internal DP connector with converter -> audio works > Dock HDMI connector -> audio works > Internal HDMI connector -> audio works are you able to hear the audio when connected without a converter, directly from dock DP port to DP monitor?.</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 QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>