<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [BayTrail-M] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting" href="https://bugs.freedesktop.org/show_bug.cgi?id=67245#c21">Comment # 21</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [BayTrail-M] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting" href="https://bugs.freedesktop.org/show_bug.cgi?id=67245">bug 67245</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>(In reply to <a href="show_bug.cgi?id=67245#c20">comment #20</a>) > Below is the steps of getting dmesg.log. > Power on->backlight is black, then press ctl+alt+F2 to enter to > tty2->backlight still is black, I log in step by step, then type dmesg > > dmesg.log-> dmesg.log generated. Thanks, this is the kind of dmesg I want! And it tells me you're running kernel version "3.11.0-8.11.1.i686.PAE" which clearly isn't drm-intel-nightly branch of [1], which has relevant fixes. Please do try that. Also, I see that you have backlight=vendor kernel parameter. That doesn't exist; it's actually acpi_backlight=vendor. But please try the -nightly branch *without* any backlight parameters first. Thanks. [1] git://people.freedesktop.org/~danvet/drm-intel</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>