I also had several issues with Lock-Screen, Shutdown, Log-Out, etc…
The setup which is working best for me is GNOME on Xorg + GDM.
@donescopeta Can you hibernate via systemctl hibernate? Do you have resume kernel option set?
@a4orce84 Make sure you have resume in your kernel boot options with a proper device (eg. swap). You also need a resume in HOOKS which is installed by default.
I had a message like “no device for hiberation found” until I added a proper resume option.
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