Public bug reported:

I wanted to use the HDMI port provided, but its not being detected by
the Display Manager.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: xorg 1:7.7+16ubuntu3
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  375.66  Mon May  1 15:29:16 
PDT 2017
 GCC version:  gcc version 6.3.0 20170406 (Ubuntu 6.3.0-12ubuntu2)
.tmp.unity_support_test.0:
 
ApportVersion: 2.20.4-0ubuntu4.1
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:Unity7
Date: Fri Jun  9 11:06:34 2017
DistUpgraded: Fresh install
DistroCodename: zesty
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.8, 4.10.0-21-generic, x86_64: installed
 bbswitch, 0.8, 4.10.0-22-generic, x86_64: installed
 virtualbox, 5.1.22, 4.10.0-21-generic, x86_64: installed
 virtualbox, 5.1.22, 4.10.0-22-generic, x86_64: installed
GraphicsCard:
 Intel Corporation 4th Gen Core Processor Integrated Graphics Controller 
[8086:0416] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller 
[17aa:3801]
 NVIDIA Corporation GK107M [GeForce GT 755M] [10de:0fcd] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: Lenovo GK107M [GeForce GT 755M] [17aa:3801]
InstallationDate: Installed on 2017-05-26 (14 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: LENOVO 20217
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-22-generic.efi.signed 
root=UUID=6720d34d-0396-4e10-870a-ae9a296df10b ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 1/30/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: 74CN47WW(V3.08)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: VIQY0Y1
dmi.board.vendor: LENOVO
dmi.board.version: 31900004STD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Y510P
dmi.modalias: 
dmi:bvnLENOVO:bvr74CN47WW(V3.08):bd1/30/2015:svnLENOVO:pn20217:pvrLenovoIdeaPadY510P:rvnLENOVO:rnVIQY0Y1:rvr31900004STD:cvnLENOVO:ct10:cvrLenovoIdeaPadY510P:
dmi.product.name: 20217
dmi.product.version: Lenovo IdeaPad Y510P
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.13.1+17.04.20170109-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.3-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.3-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.9.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.14-0ubuntu1
xserver.bootTime: Fri Jun  9 10:57:11 2017
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.3-1ubuntu1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 ubuntu zesty

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https://bugs.launchpad.net/bugs/1696916

Title:
  HDMI Not Detecting

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