I have a computer, I think it's running GNOME (it's running whatever the default is; I have the Unity panel,) and I installed LXDE for use on another user, but after installing LXDE, it will no longer lock the screen due to inactivity, or for any other reason.
When logging in, I have to enter my password, just like normal, but the screen cannot lock. Wait 5 mins (my setting, have verified this,) still unlocked. Press CTRL-ALT-L, no response. Even going to the gear and choosing "Lock Screen" has no result.
Even after deleting the second user account (just on a hunch,) the screen STILL cannot lock.
What do I need to do?
xscreensaver? – Uri Herrera Jan 14 at 22:32sudo dpkg-reconfigure lightdmand selectinglightdmthen restarting. Does that help the issue? – Seth Jan 14 at 23:16sudo apt-get install gnome-screensaverfixed it. (I want to keep XScreensaver installed, as that's the only working option for LXDE.) Now I just have to figure out what to add to the startup file:gnome-screensaver --display=?I've tried numbers, but that doesn't work. EDIT: @iSeth, I just saw your answer, and tried that. So far, logged into the primary account, all is fine - will reply with info after logging into the LXDE account. – JamesTheAwesomeDude Jan 15 at 0:42