How do I disable automatic screen locking in Xubuntu?

Question

After about 10 minutes, Xubuntu 14.04 goes to sleep all by itself. I've set up the shuffle on the music player and it only gets through 3 songs before I have to sign in again. There is no screensaver installed and the power setting for AC is set to never shut down. So, what do I need to do?

Merlijn Sebrechts · Accepted Answer

light-locker is the new screen locking program in Xubuntu 14.04. If you disable light-locker, it should stop locking your screen.

How to disable lightlocker

Go to settings manager > session and startup > application autostart and disable light-locker, which is titled “Screen Locker (Launch screen locker program).”
Reboot your machine and it should stop locking. Alternatively, start up Terminal with Ctrl+Alt+T and run killall light-locker.

Source: Disabling screen lock is not possible

Kaaveh Mohamedi · Answer

There is an easy way:
Go to Settings -> Screensaver. In the "Lock Screen" tab, disable the lock screen.

Tcll · Answer

Provided more intuitively from the resource in Nacht's answer.

If you use nvidia xorg drivers and have gone as far as to nuke light-locker and gnome-screensaver from your system, 
and sudo xset s 0 0 doesn't work for you (your screen still blanks),
edit xorg.conf wherever you saved it (typically saved in /etc/X11/) like so:

Section "ServerLayout"

...

Option          "BlankTime"     "0"
    Option          "StandbyTime"   "0"
    Option          "SuspendTime"   "0"
    Option          "OffTime"       "0"

EndSection

save, and reboot

your screen should no longer blank after 10 minutes

hochl · Answer

You can edit the file at /etc/xdg/autostart/light-locker.desktop and add the line

Hidden=true

as documented here. This will disable light-locker globally, which is nice if your family starts complaining that they cannot unlock their desktops. You can copy the file to ~/.config/autostart first to disable it for a specific user only.

Integrator · Answer

This worked for me:

sudo mv /etc/xdg/autostart/light-locker.desktop /etc/xdg/autostart/light-locker.desktop.bak

It was based on some info in this bug report:
https://bugs.launchpad.net/ubuntu/+source/light-locker/+bug/1287255

HEKTO · Answer

One more solution - start a program below:

/usr/bin/light-locker-settings&

and shift the Enable light-Locking slider to the OFF position, then hit Close.

This panel contains two Screensaver sliders as well.

Nacht · Answer

On my Xubuntu 14.04 install, even when I had Light Locker completely disabled, my screen still blanked after about ten minutes. The solution to my problem was to run the following command:

sudo xset s 0 0

Make sure you run this command from your desktop session and not through an ssh session, or the DISPLAY variable will not be set and this command will not work.

more info: http://ubuntuforums.org/showthread.php?t=1346567

a bug report has been filed: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/498366

even more info: http://www.shallowsky.com/linux/x-screen-blanking.html

How do I disable automatic screen locking in Xubuntu?

7 Answers

How to disable lightlocker

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