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<body><span class="vcard"><a class="email" href="mailto:elio.martinez.monroy@intel.com" title="Elio <elio.martinez.monroy@intel.com>"> <span class="fn">Elio</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] External VGA monitor not detected after DPMS/second hotplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99114">bug 99114</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">i915 features</td>
<td>
</td>
<td>display/DP MST
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] External VGA monitor not detected after DPMS/second hotplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99114#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] External VGA monitor not detected after DPMS/second hotplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99114">bug 99114</a>
from <span class="vcard"><a class="email" href="mailto:elio.martinez.monroy@intel.com" title="Elio <elio.martinez.monroy@intel.com>"> <span class="fn">Elio</span></a>
</span></b>
<pre>We are facing the same problem using the following configuration:
We have a SKL skull with a Mini DP to DP dongle, having 2 1080 monitors, and
one of them is connected through DP - VGA dongle.
The Direct connection(MST to DP monitor) is recovering after hotplug event. but
the one with the VGA dongle is not, loosing video signal y both monitors.
Attaching DMESG
======================================
Graphic stack
======================================
======================================
Software
======================================
kernel version : 4.12.0-rc3-drm-tip-ww22-commit-187376e+
architecture : x86_64
os version : Ubuntu 17.04
os codename : zesty
kernel driver : i915
bios revision : 5.6
bios release date : 09/29/2016
======================================
Graphic drivers
======================================
modesetting : modesetting_drv.so
xorg-xserver : 1.19.3
libdrm : 2.4.81
vaapi (intel-driver) : Intel i965 driver for Intel(R) Skylake - 1.7.3
cairo : 1.14.8
xserver : X.Org X Server 1.19.99.1
intel-gpu-tools (tag) : intel-gpu-tools-1.18-211-g00ce341b
intel-gpu-tools (commit) : 00ce341b
======================================
Hardware
======================================
platform : SKL Canyon
motherboard id : NUC6i7KYB
form factor : Desktop
cpu family : Core i7
cpu family id : 6
cpu information : Intel(R) Core(TM) i7-6770HQ CPU @ 2.60GHz
gpu card : Intel Corporation Iris Pro Graphics 580 (rev 09)
(prog-if 00 [VGA controller])
memory ram : 31.31 GB
max memory ram : 32 GB
cpu thread : 8
cpu core : 4
cpu model : 94
cpu stepping : 3
socket : Other
signature : Type 0, Family 6, Model 94, Stepping 3
hard drive : 223GiB (240GB)
current cd clock frequency : 337500 kHz
maximum cd clock frequency : 675000 kHz
displays connected : DP-7
======================================
Firmware
======================================
dmc fw loaded : yes
dmc version : 1.26
guc fw loaded : NONE
guc version wanted : 0.0
guc version found : 0.0
======================================
kernel parameters
======================================
quiet splash fastboot drm.debug=0xe</pre>
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