How can I lock my screen in Gnome 3 without GDM?
There is no “Lock” option showing up in the user menu, and the standard shortcuts (Ctrl+L or Ctrl+Alt+L) don’t do anything.
screen-lock
How can I trigger the screensaver’s locking feature using D-BUS from the command line?
How can I trigger the screen saver manually from the command line? I’m using GNOME 3.8.4 on Fedora 19, but the solution should not necessarily be specific to this distro.
Is there a way to lock command line?
For example, in X session, I can use Ctrl–Alt–L to lock the screen, so it would ask for password to unlock and prevent somebody from messing with mine computer.
Why doesn’t my screen lock in XFCE?
I’m trying out XFCE on Arch Linux, and for some reason the Lock Screen option in the session menu doesn’t do anything. Neither does running xflock4 at the command line (it exits 0 with no output).