Got it, thanks: https://gitlab.gnome.org/GNOME/mutter/issues/263
** Changed in: gnome-shell (Ubuntu) Status: Incomplete => New ** Changed in: gnome-shell (Ubuntu) Importance: Undecided => Low ** Description changed: + https://gitlab.gnome.org/GNOME/mutter/issues/263 + + --- + Ubuntu 18 shows only black output on 3 monitor display screencast. I'm using desktop with videocard with 3 display output (HDMI, VGA, DVI). On dual monitor, screecast works fine while on 3 monitors the output is only black screen. - --- + --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 18.04 GsettingsChanges: - b'org.gnome.shell' b'favorite-apps' redacted by apport - b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" + b'org.gnome.shell' b'favorite-apps' redacted by apport + b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" InstallationDate: Installed on 2018-06-08 (66 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Package: gnome-shell 3.28.2-0ubuntu0.18.04.1 PackageArchitecture: amd64 ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_PH.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_PH.UTF-8 + SHELL=/bin/bash ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Tags: bionic Uname: Linux 4.15.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True ** Summary changed: - screencast no output on 3 display monitor + Gnome Shell screencast doesn't work at desktop resolution 4880x1085 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1786757 Title: Gnome Shell screencast doesn't work at desktop resolution 4880x1085 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1786757/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs