I have tried to reproduce it in the live session of Xubuntu 18.04.1 and 18.10 (dev release), but I did not encounter the issue.
Maybe there is another component interfering, or some setting needs to be changed to trigger the bug. ** Package changed: mousepad (Ubuntu) => ibus (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1793222 Title: Mousepad doesn't take input after canceled save dialog Status in ibus package in Ubuntu: New Bug description: 1 Open Mousepad 2 Write something 3 Ctrl+S for save -> dialog opens 4 Exit dialog with ESC -> Mousepad will not take any keyboard input anymore. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: mousepad 0.4.0-4ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18 Uname: Linux 4.15.0-33-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Sep 19 07:17:27 2018 InstallationDate: Installed on 2018-02-12 (218 days ago) InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: mousepad UpgradeStatus: Upgraded to bionic on 2018-08-25 (24 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1793222/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
