Thank you for your bug report, could share a photo showing the error screen? xserver doesn't use atk so the error is probably in another component.
Could you also reinstall the package see if that restores the issue and provide the output of $ ldd -r /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 | grep atk ** Changed in: at-spi2-atk (Ubuntu) Importance: Undecided => Low ** Changed in: at-spi2-atk (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/1905560 Title: XServer Crashes with atk_component_scroll_to_point if NVIDIA Driver 340 is Used To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/at-spi2-atk/+bug/1905560/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs