You seem to already realize that this is just a rant, which does not form an actionable bug report, therefore I am closing it. To answer your question, the mouse can not move because the program responsible for handling it has been swapped out.
** Changed in: ubuntu Status: New => Invalid -- Desktop completely unresponsive on low memory due to stupid swapping. https://bugs.launchpad.net/bugs/668050 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs