Since shortly ago, the main menu does not show "Reboot" or "Hibernate", only "Suspend" and "Power off". I do not recall anything happening that might have led to this. Using kernel 5.13.0-40-generic.
How can I solve this?
I have enough swap space for hibernating, as shown by
$ free -h
total used free shared buff/cache available
Mem: 7,6Gi 1,8Gi 2,6Gi 895Mi 3,3Gi 4,7Gi
Swap: 7,9Gi 0B 7,9Gi