Do you mean login asking for your username and password, and starting a new session losing all your data from the hibernated session (a fresh reboot in practice); or just asking for your password after resuming successfully and get back to your previous session?
I have this on an old 32bits Acer laptop running LMDE2, but I just use it offline to watch videos and never fixed the problem that started to happen after a BIOS update.
I don't know how things are nowadays regarding BIOS updates and this new Acer machine I am currently on, but after BIOS updates botching hibernation on two separate Acer laptops, I won't take the risk in this new one and just let it be...
Can I be confusing the latter as a configuration setting instead of a real problem?
Can I suggest installing uswsusp and check if hibernation works well with s2disk from a terminal?
uswsusp has, in its configuration, two methods to switch off the computer: Platform and Shutdown. One of them might work better for you.
You can access uswsusp's configuration by running:
Code: Select all
sudo dpkg-reconfigure uswsusp