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https://choffee.co.uk/thoughtsplurge/posts/2013/07/11/lock_gnome_screensaver/

In old versions of gnome the command gnome-screensaver-command -l would lock your screen.

As gnome-screensaver is no more in gnome 3.8 you now have to send a dbus call. I think this is then handled by GDM.

dbus-send --type=method_call --dest=org.gnome.ScreenSaver /org/gnome/ScreenSaver org.gnome.ScreenSaver.Lock

It works on my LXDE in Lubuntu 18.04.

I read https://unix.stackexchange.com/a/107789/674, but still wonder what the command is doing?

What screen-locking program does dbus-send --type=method_call --dest=org.gnome.ScreenSaver /org/gnome/ScreenSaver org.gnome.ScreenSaver.Lock invoke?

Is this way of locking dependent on Gnome? I am not using Gnome but LXDE.

Is there some way to unlock a screen locked in this way (and from another machine via ssh)?

Thanks.

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