There's no indication of this bug's ever being fixed. The workaround is always launching Gdebi through Terminal. Run-
sudo -i gedit /usr/share/applications/gdebi.desktop make it read:- [Desktop Entry] Name=GDebi Package Installer GenericName=Package Installer Comment=Install and view software packages Exec=sudo -i gdebi-gtk %f Icon=gnome-mime-application-x-deb Terminal=false Type=Application Categories=System; MimeType=application/vnd.debian.binary-package; NotShowIn=KDE; X-Ubuntu-Gettext-Domain=gdebi StartupNotify=true Keywords=package;apt;dpkg;install SAVE the file. Now try right-clicking a .deb and selecting "Open with > GDebi Package Installer" Thanks to user Mark-pcnetspec on bug #1760910 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gdebi in Ubuntu. https://bugs.launchpad.net/bugs/1821810 Title: gdebi crashes when trying to install packages Status in gdebi package in Ubuntu: Confirmed Bug description: When I try to install some deb packages gdebi disapears. It does not show me any error report. It will just disapear from my screen. Lubuntu 18.4 LTS gdebi 0.9.5.7+nmu2 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gdebi 0.9.5.7+nmu2 ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18 Uname: Linux 4.15.0-46-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Mar 26 23:30:04 2019 InstallationDate: Installed on 2019-03-18 (8 days ago) InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all SourcePackage: gdebi UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdebi/+bug/1821810/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp