[Bug 99114] [SKL] External VGA monitor not detected after DPMS/second hotplug

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https://bugs.freedesktop.org/show_bug.cgi?id=99114

--- Comment #17 from John Glotzer <jglotzer at gmail.com> ---
Regarding my previous comment - I meant to say that from attachment 128571 in
comment 7 .... I used only patch 3 which is:

>From ae8032dc0eb3bbda951baf898ab3996393da82d7 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak at intel.com>
Date: Tue, 20 Dec 2016 00:36:27 +0200
Subject: [PATCH 3/3] drm/i915: Put DP sink to D3 before turning off port

And patched that into the drm-intel-nightly kernel with good results over the
past two weeks and many cycles of operation.

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