Thanks for the bug report. 1. If you experience a crash then please follow these instructions: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
2. If you experience a freeze without any crash reports then it might be related to bug 1959888, even if not exactly the same. 3. You seem to have a lot of packages from "origin: unknown" shown in Dependencies.txt, so that might be a factor. But if we can confirm the cause of this problem is #1 or #2 instead then we won't have to worry about the package versions right now. ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: 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/1960865 Title: System freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1960865/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs