Hibernate and suspend are intentionally disabled on a hardware / BIOS level for the ThinkServer TS140.
I ended up getting around this by installing uswsusp to emulate hibernation using the swapfile.
See https://support.lenovo.com/us/en/documents/ht079445 and https://help.ubuntu.com/community/PowerManagement/Hibernate
Hibernate and suspend are intentionally disabled on a hardware / BIOS level for the ThinkServer TS140.
I ended up getting around this by installing uswsusp to emulate hibernation using the swapfile.
See https:/ /support. lenovo. com/us/ en/documents/ ht079445 and https:/ /help.ubuntu. com/community/ PowerManagement /Hibernate