Comment 0 for bug 1795623

New installation of Ubuntu 18.10, very few customisations made and I find that the right-click menu on window title bars fails to appear. Context menus do appear on application windows soI know that the mouse is working correctly.

I previously saw this with GNOME Shell 3.29 and reported it in the Ubuntu forums: https://ubuntuforums.org/showthread.php?t=2398652 but no-one else saw the issue so I went back to using 18.04 where this functionality works as expected.

The problem seems to be my dual monitor set-up.

I have a laptop with an external monitor set to act as the primary monitor. In that configuration the context menu fails to appear. If I set the monitors to "Mirror" then the context menu appears. When "Single" display is selected context menus also appear.

Conclusion: Window titlebar context menus fail to appear in "Join displays" dual monitor mode

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-shell 3.30.0-1ubuntu2
ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
Uname: Linux 4.18.0-8-generic x86_64
ApportVersion: 2.20.10-0ubuntu11
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 2 11:59:11 2018
DisplayManager: gdm3
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.desktop.interface' b'clock-show-date' b'true'
InstallationDate: Installed on 2018-10-02 (0 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20181002)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)