Most likely it's upstream bug https://gitlab.gnome.org/GNOME/vte/-/issues/2577.
** Bug watch added: gitlab.gnome.org/GNOME/vte/-/issues #2577 https://gitlab.gnome.org/GNOME/vte/-/issues/2577 ** Also affects: vte2.91 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-terminal in Ubuntu. https://bugs.launchpad.net/bugs/2011727 Title: Seemingly random crashes of all terminal windows Status in gnome-terminal package in Ubuntu: New Status in vte2.91 package in Ubuntu: New Bug description: Typically this happens when I have 4 windows open. This seems to be a new issue for me, dating back perhaps a couple of weeks. I've used this particular 4 terminal setup for years without issues. When the issue occurs, all terminal windows vanish instantly, and I need to restart all of them. Other applications seem unaffected. Details are: log 1005=> lsb_release -rd Description: Ubuntu 20.04.5 LTS Release: 20.04 log 1006=> apt-cache policy gnome-terminal gnome-terminal: Installed: 3.36.2-1ubuntu1~20.04 Candidate: 3.36.2-1ubuntu1~20.04 Version table: *** 3.36.2-1ubuntu1~20.04 500 500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 100 /var/lib/dpkg/status 3.36.1.1-1ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages And in /var/log/syslog I'm seeing the following - (Server ID removed from log): Mar 15 10:16:19 gnome-terminal-server[96577]: VTE:ERROR:../src/ringview.cc:299:const vte::base::BidiRow* vte::base::RingView::get_bidirow(vte::grid::row_t) const: assertion failed (row >= m_start): (10011 >= 14401) Mar 15 10:16:19 gnome-terminal-server[96577]: Bail out! VTE:ERROR:../src/ringview.cc:299:const vte::base::BidiRow* vte::base::RingView::get_bidirow(vte::grid::row_t) const: assertion failed (row >= m_start): (10011 >= 14401) Mar 15 10:16:20 systemd[2497]: gnome-terminal-server.service: Main process exited, code=dumped, status=6/ABRT Mar 15 10:16:20 systemd[2497]: gnome-terminal-server.service: Failed with result 'core-dump'. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/2011727/+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