Public bug reported:

I've just reluctantly upgraded to 17.10 and am experiencing an annoying
bug where the display jolts/refreshes randomly once every 10/15 seconds
or so.

Specifically, the screen blacks out, appears for half a second upside-
down, then blacks out again before returning.

It corresponds very closely to the following errors found initially in

otto@computer:~$ journalctl /usr/bin/gnome-shell -f -o cat

Window manager warning: Overwriting existing binding of keysym 73 with keysym 
73 (keycode 27).
Failed to apply DRM plane transform 0: Permission denied
Failed to read EDID from 'eDP-1': No such file or directory
Failed to read EDID from 'eDP-1': No such file or directory
Failed to read EDID from 'eDP-1': No such file or directory
WARNING: addSignalMethods is replacing existing [0x55ddb578d5c0 
Gjs_ShowAppsIcon.dash-item-container] connect method
WARNING: addSignalMethods is replacing existing [0x55ddb578d5c0 
Gjs_ShowAppsIcon.dash-item-container] disconnect method
WARNING: addSignalMethods is replacing existing [0x55ddb578d5c0 
Gjs_ShowAppsIcon.dash-item-container] emit method

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xorg 1:7.7+19ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CompizPlugins: No value set for 
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 19 15:31:08 2018
DistUpgraded: 2018-02-19 11:42:52,000 ERROR Bad upgrade: 'yakkety' != 'zesty'
DistroCodename: artful
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
 Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA 
   Subsystem: Hewlett-Packard Company HD Graphics 620 [103c:81d2]
InstallationDate: Installed on 2016-11-11 (465 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
LightdmDisplayLog: (II) Server terminated successfully (0). Closing log file.
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 8087:0a2a Intel Corp. 
 Bus 001 Device 002: ID 04f2:b56d Chicony Electronics Co., Ltd 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP ENVY Notebook
 <monitors version="2">
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-32-generic 
root=UUID=c0b32388-dd3d-4fdd-9490-e2de1250484f ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to artful on 2018-02-19 (0 days ago) 07/08/2016
dmi.bios.vendor: Insyde
dmi.bios.version: F.21
dmi.board.asset.tag: Type2 - Board Asset Tag 81D2
dmi.board.vendor: HP
dmi.board.version: KBC Version 87.13
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi:bvnInsyde:bvrF.21:bd07/08/2016:svnHP:pnHPENVYNotebook:pvrType1ProductConfigId:rvnHP:rn81D2:rvrKBCVersion87.13:cvnHP:ct10:cvrChassisVersion: 103C_5335KV G=N L=CON B=HP S=ENV HP ENVY Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
version.compiz: compiz 1:
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 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Mon Feb 19 12:08:47 2018
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu6.1
xserver.video_driver: modeset

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

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

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  Screen constantly crashes/refreshes

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