Same problem here. I'm using Ubuntu 18.10 LiveCD and from time to time my Ubuntu just freezes and when it happens my pendrive LED blinks like crazy. It's hard to recover from it, but yesterday I did. The log it at the post below.
Here's my post about it: https://unix.stackexchange.com/questions/483898 /my-shell-script-to-periodically-free-some-memory-up-with-ubuntu-18-10 -livecd-wit#_=_ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1588009 Title: "libinput bug: timer offset negative" keeps coming up in syslog To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1588009/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs