I'm doing some tests but there is a possibility that the cause of these crashs is some or some gnome extensions.
I turned off the extensions: - Native Windows Placement (https://extensions.gnome.org/extension/18/native-window-placement/) - Auto Move Windows (https://extensions.gnome.org/extension/16/auto-move-windows/) - Window Navigator (https://extensions.gnome.org/extension/10/windownavigator/) ... and I tried to repeat the incident but it looks like the gnome-shell has stabilized I'm setting this bug as invalid. ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1716385 Title: crash on change focus between apps in two workspaces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1716385/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp