That seems like we should be able to extract a verification from the errors.ubuntu.com results. Is it possible to query crashes with a specific dependency version? Seeing no crash reports with libx11 2:1.6.9-2ubuntu1.3 would suggest this is fixed.
On the other hand, https://bugs.launchpad.net/ubuntu/+source/libx11/+bug/1782984/comments/110 suggests that this may *not* be fixed in focal. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782984 Title: Assertion `!xcb_xlib_threads_sequence_lost' failed with multiple applications To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libx11/+bug/1782984/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs