[Bug 73705] External display not working - failed to enable link training, failed to start channel equalization

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73705

andreas.sturmlechner at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |andreas.sturmlechner at gmail.
                   |                            |com

--- Comment #3 from andreas.sturmlechner at gmail.com ---
I can see the same dmesg output when (un-)plugging DisplayPort cable from X200s
(GM45 chipset) docking station a few times - no hangs though:

[  178.049984] [drm:intel_dp_start_link_train] *ERROR* failed to enable link
training
[  178.052592] [drm:intel_dp_complete_link_train] *ERROR* failed to start
channel equalization
[  194.914411] [drm:intel_dp_start_link_train] *ERROR* too many voltage
retries, give up

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