@giannione: may you create a new bug report? I guess you don't have the same configuration as me, maybe not the same bug then.
Before doing that, may you check if you also have the problem with other applications using libvte? Pick one from: $ apt-cache rdepends libvte-2.91-0 libvte-2.91-0 Reverse Depends: mssh xfce4-terminal xcfa vinagre tilda termit synaptic sakura nemiver mate-terminal qemu-system-gui lxterminal lilyterm libvted-3-0 gtkterm gnome-color-manager gnome-builder giggle-terminal-view-plugin deepin-terminal cairo-dock-terminal-plug-in anjuta aghermann remmina gnome-terminal libvte-2.91-dev gir1.2-vte-2.91 and: $ apt-cache rdepends libvte9 libvte9 Reverse Depends: stjerm libvte-2.90-common python-vte rasmol libvte-common libvte-dev geany I remember I checked with geany and I also had the bug. Feel free to report your bug here on launchpad and there: https://gitlab.gnome.org/GNOME/vte -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to vte2.91 in Ubuntu. https://bugs.launchpad.net/bugs/1790100 Title: unable to write ~ and ^ chars in the terminal Status in vte2.91 package in Ubuntu: Fix Released Bug description: Hello, I am using Ubuntu 18.10 and since the last update, I am unable to write ~ and ^ chars in the terminal, in both gnome-terminal and Geany (both using libvte2.91). I don't have this issue with other applications (terminator, xterm, Firefox, Gedit, etc.). But note that now, when I type ^ for the first time in Gedit for example, I see this char but underlined. If I type it a second type (or press space), it is transformed in ^ without line under it. This is a new behaviour that can cause this bug in libvte. Please tell me if I need to join other info! Thanks! ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: libvte-2.91-0 0.52.2-1ubuntu1 ProcVersionSignature: Ubuntu 4.17.0-9.10-generic 4.17.17 Uname: Linux 4.17.0-9-generic x86_64 ApportVersion: 2.20.10-0ubuntu9 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Aug 31 11:17:43 2018 InstallationDate: Installed on 2015-08-10 (1116 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: vte2.91 UpgradeStatus: Upgraded to cosmic on 2016-04-29 (854 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vte2.91/+bug/1790100/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

