The program is Supersymmetry (https://github.com/SymmetricDevs/Supersymmetry) Minecraft modpack with PrismLauncher. I can try to check if other modpacks also have this issue.
However, I am not using 2 screens. The only display output is my laptop's default screen. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2097003 Title: GNOME desktop glitches and then crashed after closing program window To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2097003/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs