In my case the bug was on gnome-shell extension "workspaces-to- dock"(https://github.com/passingthru67/workspaces-to-dock). I found this log entry:
Apr 24 10:33:35 hostname gnome-shell[2736]: JS ERROR: TypeError: this._porthole is undefined#012myThumbnailsBox<._getPreferredWidth@/home/username/.local/share /gnome-shell/extensions/workspaces-to- d...@passingthru67.gmail.com/myWorkspaceThumbnail.js:1065:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012ThumbnailsSlider<._getPreferredWidth@/home/username/.local/share /gnome-shell/extensions/workspaces-to- d...@passingthru67.gmail.com/dockedWorkspaces.js:194:37#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_init/<@resource:///org/gnome/shell/ui/layout.js:209:17#012_loadBackground/signalId<@resource:///org/gnome/shell/ui/layout.js:593:13#012_emit@resource:///org/gnome/gjs/modules/signals.js:128:27#012_init/id<@resource:///org/gnome/shell/ui/background.js:523:17 After remove /home/username/.local/share/gnome-shell/extensions /workspaces-to-d...@passingthru67.gmail.com and restart session the behavior described here disappears. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181666 Title: gnome-shell randomly blocks mouse clicks from working in app windows To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1181666/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
