Okay, Since updating the BIOS of my Lenovo T460s laptop from version 1.15 to 1.20, I've not seen this issue once.
Since I've not been able to successfully reproduce the error at any point, I can't say for sure that the problem is gone. It has been a weeks time, however, which is certainly a first. I'm happy to close this bug at this time, marking it a hardware/firmware issue. /Thomas -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1641322 Title: frequently lost connection to nvme To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641322/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs