<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Video cutout on Kaby Lake U processors." href="https://bugs.freedesktop.org/show_bug.cgi?id=107543#c69">Comment # 69</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Video cutout on Kaby Lake U processors." href="https://bugs.freedesktop.org/show_bug.cgi?id=107543">bug 107543</a> from <a class="email" href="mailto:anshuman.gupta@intel.com" title="Anshuman Gupta <anshuman.gupta@intel.com>"> Anshuman Gupta</a> <pre>(In reply to Jack Vickeridge from <a href="show_bug.cgi?id=107543#c58">comment #58</a>) > Created <a href="attachment.cgi?id=142803" name="attach_142803" title="Output from dmesg during same crash">attachment 142803</a> <a href="attachment.cgi?id=142803&action=edit" title="Output from dmesg during same crash">[details]</a> > Output from dmesg during same crash Hi Jack, Based on Weston attached logs there is mode set failure, [16:59:21.321] set mode failed: Invalid argument ------------------------------------------------ [16:59:23.139] set mode failed: Invalid argument Around the same timestamp, DP link training failed in i915 driver [ 454.995631] [drm:intel_dp_start_link_train [i915]] [CONNECTOR:71:DP-1] Link Training failed at link rate = 540000, lane count = 4 ----------------------------------------------------- [ 456.812422] [drm:intel_dp_start_link_train [i915]] [CONNECTOR:71:DP-1] Link Training failed at link rate = 540000, lane count = 4 Looks like wiggling DP port is not handled by i915 driver properly and resulted in DP Link training failure. This failure is not due to the provided Workaround patch, you can raise a separate bug for this mode set failure. Thanks, Anshuman Gupta.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>