I have installed the latest ubuntu 20.04 and recently noticed a bug that whenever I close my lid the screen only goes blank instead of going into hibernate or suspend. Earlier after reopening the lid, I was presented with a lock screen.
- I noticed that there is no longer an option in gnome-settings as it was in ubuntu 18.04.
- tried changing the values in /etc/systemd/logind.conf.
- changing values in gnome-tweaks.
tried installing hibernate from
sudo apt-get install hibernateand running
getting this error
hibernate:Warning: Tuxonice binary signature file not found. Some modules failed to unload: nvidia_drm nvidia_modeset nvidia hibernate: Aborting suspend due to errors in ModulesUnloadBlacklist (use --force to override)
How to resolve this?