Hi, Sorry for my bad english, and sorry I'm not sysadmin.
I migrated from Debian 9 to 10 applying excellent documentation : https://www.debian.org/releases/stable/amd64/release-notes/ch-upgrading.fr.html All worked well. The machine is a sftp server. And to be user-friendly Gnome graphic environement runs on this server. And my server entered in deep suspend power save mode few minutes later... According to this bug report : https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893964#22 "It's 20 minutes, and is a result of the defaults in gnome-settings-daemon 3.28 changing to comply with European and American power-saving regulations." So If we migrate a debian server with gnome to Buster. The login screen will suspend the server 20 minutes later the migration. What a joke ! The solution consists in editing /etc/gdm3/greeter.dconf-defaults to come back to 'blank' screen. After the sysadmin can enforce refering to : https://manpages.debian.org/jessie/systemd/systemd-sleep.conf.5.en.html https://wiki.debian.org/Suspend I suggest the release notes documentation should point this small but very critical change. Best regards, Rémi Rouaud
