<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - DP unplug and undocking ThinkPad produces dmesg errors" href="https://bugs.freedesktop.org/show_bug.cgi?id=95521#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - DP unplug and undocking ThinkPad produces dmesg errors" href="https://bugs.freedesktop.org/show_bug.cgi?id=95521">bug 95521</a> from <a class="email" href="mailto:pierre-yves.david@ens-lyon.org" title="Pierre-Yves David <pierre-yves.david@ens-lyon.org>"> Pierre-Yves David</a> <pre>I've been having similar issue for multiple months, I've using a Think pad X260 with a dock and 2 monitor plugged to the dock through display port. The monitor fails to fails to wake up when get back to the laptop (and other strange behavior like X freezing for a couple of minute when I managed to get them detected again. I've seen many of the dmesg shown in this thread. Today I got: [Sat Jan 21 14:47:49 2017] [drm:intel_encoders_disable.isra.107 [i915]] *ERROR* failed to update payload -22 [Sat Jan 21 14:47:49 2017] [drm:intel_encoders_disable.isra.107 [i915]] *ERROR* failed to update payload -22 [Sat Jan 21 16:02:01 2017] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=292 end=293) time 127 us, min 763, max 767, scanline start 761, end 769 [Sat Jan 21 16:15:46 2017] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=49791 end=49792) time 125 us, min 763, max 767, scanline start 761, end 769 I'm using debian unstable: kernel is" Linux 4.9.0-1-amd64 #1 SMP Debian 4.9.2-2 (2017-01-12) x86_64 GNU/Linux. How can I help you debug the problem further?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>