Hi Christopher,

1) This one was hard... I needed a magnifying glass to get the info:
HP Pavilion Notebook PC
ProdID: V7R89LA#ABM
Model 14-av005Ia

2) Update done using command:
   sudo apt-get install --install-recommends linux-generic-hwe-16.04 
xserver-xorg-hwe-16.04
Same results, black screen. In fact, after the update, it never starts 
correctly again :S

3) I tried with the four options. None worked.

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https://bugs.launchpad.net/bugs/1642078

Title:
  Black screen at startup on Carrizo

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  The laptop starts up fine but the screen is black; even though the
  screen is black I can hear the drum sound prompting me to log in.

  WORKAROUND: Reboot once, sometimes twice.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24
  Uname: Linux 4.4.0-47-generic x86_64
  .tmp.unity_support_test.0:

  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Tue Nov 15 17:56:57 2016
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Carrizo [1002:9874] (rev c5) (prog-if 
00 [VGA controller])
     Subsystem: Hewlett-Packard Company Carrizo [103c:8246]
  InstallationDate: Installed on 2016-11-10 (5 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  MachineType: HP HP Pavilion Notebook
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-47-generic.efi.signed 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/03/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F.03
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 8246
  dmi.board.vendor: HP
  dmi.board.version: 98.11
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrF.03:bd05/03/2016:svnHP:pnHPPavilionNotebook:pvr:rvnHP:rn8246:rvr98.11:cvnHP:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion Notebook
  dmi.sys.vendor: HP
  version.compiz: compiz 1:0.9.12.2+16.04.20160714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20160325-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.12-1build2
  xserver.bootTime: Tue Nov 15 17:21:18 2016
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.18.3-1ubuntu2.2
  xserver.video_driver: amdgpu

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