A workaround is to install Geogebra 6 from a .deb package from the Geogebra website. That's documented on https://askubuntu.com/questions/1043791/geogebra-from-apt-repository- silently-dies-on-ubuntu-18-04/1043814#1043814 and this worked fine for me.
Michael. -- You received this bug notification because you are a member of Edubuntu Bugsquad, which is subscribed to geogebra in Ubuntu. https://bugs.launchpad.net/bugs/1775244 Title: Geogebra does not launch on Ubuntu 18.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/geogebra/+bug/1775244/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~edubuntu-bugs Post to : edubuntu-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~edubuntu-bugs More help : https://help.launchpad.net/ListHelp