Thanks for your report. This is intended and a security feature of
wayland. Meanwhile you can select 'Ubuntu on Xorg' in the logging screen
to start xorg instead and screen capture applications should work.

** Tags removed: wayland-session
** Tags added: wayland

** Package changed: xorg (Ubuntu) => wayland (Ubuntu)

** Changed in: wayland (Ubuntu)
   Importance: Undecided => Medium

** Changed in: wayland (Ubuntu)
       Status: New => Confirmed

** Changed in: wayland (Ubuntu)
       Status: Confirmed => Triaged

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1745044

Title:
  [Ubuntu 18.04] Screen not recorded by Chrome recording extensions

Status in gnome-shell package in Ubuntu:
  Confirmed

Bug description:
  Not sure I report this correctly.
  Since updating to 18.04, all chrome extensions capturing the desktop (es. 
Awesome Screenshot and Screencastify) don't work anymore.
  They capture just a black screen.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xorg 1:7.7+19ubuntu3
  ProcVersionSignature: Ubuntu 4.14.0-15.18-generic 4.14.12
  Uname: Linux 4.14.0-15-generic x86_64
  .tmp.unity_support_test.0:
   
  ApportVersion: 2.20.8-0ubuntu6
  Architecture: amd64
  CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Jan 23 23:27:50 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  DkmsStatus: webcamstudio, 0.73, 4.14.0-15-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation HD Graphics 520 [8086:1916] (rev 07) (prog-if 00 [VGA 
controller])
     Subsystem: Lenovo HD Graphics 520 [17aa:5053]
  InstallationDate: Installed on 2015-12-07 (778 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader
   Bus 001 Device 005: ID 04ca:7058 Lite-On Technology Corp. 
   Bus 001 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20FMS1G400
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.14.0-15-generic 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  Renderer: Software
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/20/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: R06ET42W (1.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FMS1G400
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrR06ET42W(1.16):bd09/20/2016:svnLENOVO:pn20FMS1G400:pvrThinkPadT460:rvnLENOVO:rn20FMS1G400:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad T460
  dmi.product.name: 20FMS1G400
  dmi.product.version: ThinkPad T460
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.13.1+18.04.20171116-0ubuntu1
  version.libdrm2: libdrm2 2.4.89-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu1
  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 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
  xserver.bootTime: Thu Jan 11 19:43:07 2018
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.19.5-0ubuntu2

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