Thanks for idea, but on launch gdebi is shown in `htop` as /usr/bin/python3 /usr/bin/gdebi-gtk /home/user/Desktop/meld_3.18.0-6_all.deb
then it closes after clicking on *Install package* button. I do not know how to debug this deeper. ** Changed in: nautilus (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1807761 Title: Unable to install deb-file stored on Desktop (which is controlled by nautilus-desktop) with GDebi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdebi/+bug/1807761/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs