[Bug 95521] DP unplug and undocking ThinkPad produces dmesg errors

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jun 27 12:36:37 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=95521

--- Comment #10 from Martin Jørgensen <mkj at gotu.dk> ---
well, it doesn't :-) first issue found. after unplugin and plugin the laptop a
few times through the day, I suddenly came across this issue in dmesg:

[25925.587641] [drm] HPD interrupt storm detected on connector DP-2: switching
from hotplug detection to polling

it this point the monitor didn't show any image, and xrandr didn't report any
other monitors than the eDP1. only after turning the monitor OFF and ON again,
the monitor became visible in xrandr, and everything was working again.

attaching full dmesg later.

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