Since "the mouse cursor is still moving but nothing else on the GUI is working any more", that means the X server has not "crashed".
** Summary changed: - X server crashes after alleged application crash + Some wine apps stop responding ** Package changed: xorg-server (Ubuntu) => wine (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1805782 Title: Some wine apps stop responding To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wine/+bug/1805782/+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