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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GFX] Connecting three monitors one of them lost video signal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104072#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GFX] Connecting three monitors one of them lost video signal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104072">bug 104072</a>
from <span class="vcard"><a class="email" href="mailto:octaviox.hernandez.lopez@intel.com" title="Octavio <octaviox.hernandez.lopez@intel.com>"> <span class="fn">Octavio</span></a>
</span></b>
<pre>Tests steps:
Plug two external monitors, one of the is not displaying video signal
unplug the second one, it turns on the first monitor, plug again the monitor
don't reproduce video signal
======================================
Graphic stack
======================================
======================================
Software
======================================
kernel version : 4.14.0-drm-tip-ww47-commit-f710441+
hostname : KBL-01
architecture : x86_64
os version : Ubuntu 17.04
os codename : zesty
kernel driver : i915
bios revision : 1.46
bios release date : 09/20/2016
ksc : 1.36
hardware acceleration : enabled
swap partition : enabled on (/dev/sda2)
======================================
Graphic drivers
======================================
mesa : 17.4.0-devel (git-ce221cbbcf
modesetting : enabled
modesetting compiled for : 1.19.99.1 X.Org Video Driver
libdrm : 2.4.88
vaapi (intel-driver) : Intel i965 driver for Intel(R) Sandybridge Mobile
- 2.0.1.pre1 (2.0.0.pre2-11-g35fc70f)
cairo : 1.15.9
intel-gpu-tools (tag) : intel-gpu-tools-1.20-117-gf8f6db9c
intel-gpu-tools (commit) : f8f6db9c
======================================
Hardware
======================================
motherboard model : 4243G52
motherboard id : 4243G52
form factor : Notebook
manufacturer : LENOVO
cpu family : Core i5
cpu family id : 6
cpu information : Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz
gpu card : Intel Corporation 2nd Generation Core Processor
Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
memory ram : 3.74 GB
max memory ram : 16 GB
display resolution : 1920x1080
cpu thread : 4
cpu core : 2
cpu model : 42
cpu stepping : 7
socket : ZIF Socket
signature : Type 0, Family 6, Model 42, Stepping 7
hard drive : 447GiB (480GB)
current cd clock frequency : 400000 kHz
maximum cd clock frequency : 400000 kHz
displays connected : LVDS-1
======================================
Firmware
======================================
======================================
kernel parameters
======================================
quiet splash drm.debug=0xe resume=/dev/sda2</pre>
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