This problem has been RESOLVED.

After much hassle, machine was returned to Lenovo for service.  
They could not find any hardware test that indicated any failures,  
but after I raised a ruckus they replaced the "system board"
and now the problem is gone.

I am curious.  I wish I knew what really failed...  Oh well...

I hope that this was a useful post.

GJS

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1716184

Title:
  failure of xrandr to find any outputs

Status in xorg package in Ubuntu:
  New

Bug description:
  I have a very new Lenovo X1 Yoga 2nd edition, with oled display.
  The exact model is 20JECTO1WW.
  The BIOS is N1NET27W.  I am running a vanilla Ubuntu 16.04

  lsb_release -a
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 16.04.3 LTS
  Release:      16.04
  Codename:     xenial

  uname -a
  Linux gjs-yoga 4.11.0-14-generic #20~16.04.1-Ubuntu SMP Wed Aug 9 09:06:22 
UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

  Until recently things worked quite well.  But on August 26 I got an update 
from Ubuntu and
  things began to decay.

  In particular, I can no longer display except on the built-in display:  For 
example, xrandr
  cannot find any outputs, even though this laptop has a (working) HDMI output 
port.

  xrandr --verbose
  xrandr: Failed to get size of gamma for output default
  Screen 0: minimum 2560 x 1440, current 2560 x 1440, maximum 2560 x 1440
  default connected primary 2560x1440+0+0 (0x272) normal (normal) 0mm x 0mm
   Identifier: 0x271
   Timestamp:  33974
   Subpixel:   unknown
   Clones:
   CRTC:       0
   CRTCs:      0
   Transform:  1.000000 0.000000 0.000000
               0.000000 1.000000 0.000000
               0.000000 0.000000 1.000000
              filter:
   _GNOME_FLASHBACK_PRESENTATION_OUTPUT: 0
    2560x1440 (0x272) 342.835MHz *current
          h: width  2560 start    0 end    0 total 2560 skew    0 clock 
133.92KHz
          v: height 1440 start    0 end    0 total 1440           clock  93.00Hz

  Notice there are no (even disconnected) outputs other than default.

  Another symptom is that system restart always turns off the power
  rather than rebooting.

  I looked at the manifest of the update that seems to have caused trouble and 
the only
  suspicious entry is a microcode update from Intel.
  Here is the entry from the apt history log:

  Start-Date: 2017-08-26  17:54:05
  Commandline: aptdaemon role='role-commit-packages' sender=':1.87'
  Upgrade: intel-microcode:amd64 (3.20151106.1, 3.20170707.1~ubuntu16.04.0),

  I hope that someone knows what is the problem here.  I am stumped.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  ProcVersionSignature: Ubuntu 4.11.0-14.20~16.04.1-generic 4.11.12
  Uname: Linux 4.11.0-14-generic x86_64
  .tmp.unity_support_test.1:

  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  BootLog:

  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Sat Sep  9 18:54:56 2017
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Device [8086:5916] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:224e]
  InstallationDate: Installed on 2017-07-27 (44 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.2)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f2:b5ce Chicony Electronics Co., Ltd
   Bus 001 Device 004: ID 056a:5087 Wacom Co., Ltd
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20JECTO1WW
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.11.0-14-generic 
root=/dev/mapper/ubuntu--vg-root ro nomodeset
  Renderer: Software
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/12/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N1NET27W (1.14 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20JECTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 31
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN1NET27W(1.14):bd07/12/2017:svnLENOVO:pn20JECTO1WW:pvrThinkPadX1Yoga2nd:rvnLENOVO:rn20JECTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone:
  dmi.product.name: 20JECTO1WW
  dmi.product.version: ThinkPad X1 Yoga 2nd
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.1
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Sat Sep  9 18:34:59 2017
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:

  xserver.version: 2:1.19.3-1ubuntu1~16.04.2

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