I have an X1 Carbon 6th Generation (Core i7 8th Gen, 16 GB RAM, 512 GB SSD) and it behaves like described in the first comments above.
Specifically, when I close the notebook it somewhat goes in standby (or not really, I'm not sure), the red dot blinks but underneath the notebook gets hot within a few minutes. And sometimes, not always, it freezes (or stays frozen) instead of waking up when I open the notebook again. I'm running 18.04 Bionic (development branch). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1708043 Title: Lenovo X1 Carbon Gen5 fails to resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1708043/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs