<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - Got call trace message "eDP powered off while attempting aux channel communication" while boot up" href="https://bugs.freedesktop.org/show_bug.cgi?id=112051#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - Got call trace message "eDP powered off while attempting aux channel communication" while boot up" href="https://bugs.freedesktop.org/show_bug.cgi?id=112051">bug 112051</a> from <a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> Imre Deak</a> <pre>Created <a href="attachment.cgi?id=145836" name="attach_145836" title="Attempt to fix the VBT DDC pin mapping">attachment 145836</a> <a href="attachment.cgi?id=145836&action=edit" title="Attempt to fix the VBT DDC pin mapping">[details]</a> <a href='page.cgi?id=splinter.html&bug=112051&attachment=145836'>[review]</a> Attempt to fix the VBT DDC pin mapping The problem seems to be that the VBT DDC pin mapping info on your CFL doesn't match the ones we use for CNP PCHs based on the VBT specification. Either the VBT on your machines or the VBT spec we use is incorrect or my assumption that the PCH with ID 0xA3C1 was wrong; I'll try to clarify this. For now could you try if the attached patch gets rid of the problem on the CFL machine? Please also try your CML machine which should have an HDMI output and I suspect it has the same problem.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>