Can you confirm that the option to use hardware acceleration is checked under "Tools > Options > LibreOffice > View" ?
I am seeing tearing when playing 3D transitions fullscreen on an external monitor, that's with the libreoffice snap (version 6.1.3.2) on cosmic (Ubuntu 18.10). ** Changed in: libreoffice (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797373 Title: 3D slide transitions don't work at all or when played there is flashing screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1797373/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs