[Ubuntu 18.04] Screen not recorded by Chrome recording extensions

[Daniele Besana (WP-OK)]

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

[Jean-Baptiste Lallement (jibel)]

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.

[Daniel van Vugt (vanvugt)]

Hi. Screencasting and screenshotting is quite different in Wayland logins compared to X11 of the past.

If you would like those features to work for now then please try logging in to "Ubuntu on Xorg".