A workaround of my own was to correct the nvidia driver's behaviour. Running Ubuntu 21.04 and nvidia-drivers-460, I upgraded to nvidia- drivers-470 (which I had installed once before), resulting in no masked services, and files paths to real .service files.
Before: ❯ systemctl status nvidia-suspend nvidia-hibernate nvidia-resume ● nvidia-suspend.service Loaded: masked (Reason: Unit nvidia-suspend.service is masked.) Active: inactive (dead) ● nvidia-hibernate.service Loaded: masked (Reason: Unit nvidia-hibernate.service is masked.) Active: inactive (dead) ● nvidia-resume.service Loaded: masked (Reason: Unit nvidia-resume.service is masked.) Active: inactive (dead) After: systemctl status nvidia-suspend nvidia-hibernate nvidia-resume ● nvidia-suspend.service - NVIDIA system suspend actions Loaded: loaded (/lib/systemd/system/nvidia-suspend.service; enabled; vendor preset: enabled) Active: inactive (dead) ● nvidia-hibernate.service - NVIDIA system hibernate actions Loaded: loaded (/lib/systemd/system/nvidia-hibernate.service; enabled; vendor preset: enabled) Active: inactive (dead) ● nvidia-resume.service - NVIDIA system resume actions Loaded: loaded (/lib/systemd/system/nvidia-resume.service; enabled; vendor preset: enabled) Active: inactive (dead) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1933880 Title: systemd-logind crash when suspend with nvidia-suspend.service masked, bringing session down with it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-465/+bug/1933880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs