Public bug reported:

screen flickered after trying to unlock. The display got off after the
lock timeout. and then whenever tried to unlock, screen would not wake
up after mouse hover. only pressing enter works that too takes time.
also need to type multiple time. It happen when the screen goes off
without lock and need to on the screen. This time the screen flickering
occurred and I had to force shutdown.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xorg 1:7.7+19ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-38.43-generic 4.13.16
Uname: Linux 4.13.0-38-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr  5 23:21:05 2018
DistUpgraded: Fresh install
DistroCodename: artful
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA 
controller])
   Subsystem: Hewlett-Packard Company HD Graphics 5500 [103c:80dd]
   Subsystem: Hewlett-Packard Company GM107M [GeForce GTX 950M] [103c:80dd]
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 04f2:b50c Chicony Electronics Co., Ltd 
 Bus 001 Device 003: ID 8087:07dc Intel Corp. 
 Bus 001 Device 002: ID 04ca:0061 Lite-On Technology Corp. 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Hewlett-Packard HP ENVY Notebook
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-38-generic.efi.signed 
root=UUID=66e83990-fa59-45e7-b14e-2c0ec6e2d46c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/23/2017
dmi.bios.vendor: Insyde
dmi.bios.version: F.45
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 80DD
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 64.39
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnInsyde:bvrF.45:bd05/23/2017:svnHewlett-Packard:pnHPENVYNotebook:pvrType1ProductConfigId:rvnHewlett-Packard:rn80DD:rvr64.39:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP S=ENV
dmi.product.name: HP ENVY Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~17.10.1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~17.10.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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


** Tags: amd64 apport-bug artful ubuntu wayland-session

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https://bugs.launchpad.net/bugs/1761549

Title:
  Screen flickering, whenever went to lock, waking up creates problem.

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