I used this syntax:
sudo hibernate
And after sometime, when I pressed the power button and waited. This message is on the screen for like half an hour but no sign of login appearance.
s2disk: Snapshotting system
s2disk: Returned to userspace
It used to work differently before by showing 0 to 100% rate of resuming window. But now, it's different. What should I do now? Can I get my PC back? Should I never use hibernation from now? Has something changed in new updates?
Update: After a while, I used Ctrl+Alt+F1 to login, and reboot my PC. But I really want to use hibernation next time. Because this is not a appropriate solution.