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I just installed Ubuntu 20.04 and then installed xubuntu-core. When prompted, I chose lightdm as my login manager. I then disabled everything I could find related to screen locking, but I still have to enter my password after the screen goes off. Is there some crazy hidden setting I am missing?

I realize I could remove lightlocker, but why in this context does "disable" not mean disable? Is it a bug or a design decision?

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3 Answers 3

Reset to default
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Ok, I think I found it. What's up with two screen-locking settings? The lock setting that actually helped was under "screensaver"

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  • On my system, each time this binary (/usr/bin/xfce4-screensaver-preferences) is launched, it reset the setting of ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-screensaver.xml so the only way is to edit the xml directly
    – Bruno
    Nov 17, 2020 at 8:05
  • I wonder, if you really need to disable "Enable Lock Screen"? Isn't it enough that you disable "Lock Screen with Screensaver" and "Lock Screen with System Sleep"? This settings dialog is for xfce4-screensaver, not for light-locker. Currently Xfce runs that screensaver eagerly so it you want to use another one, you have to uninstall xfce4-screensaver package: gitlab.xfce.org/apps/xfce4-screensaver/-/issues/55
    – jarno
    Mar 12, 2021 at 17:29
  • 1
    Exactly, there are two setting areas to disable it. Ridiculous.
    – Kallaste
    Oct 18, 2022 at 6:36
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If you want to automate it or simply do it by command line, then you need to create or update 2 files:

~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-screensaver.xml with content:

<?xml version="1.0" encoding="UTF-8"?>

<channel name="xfce4-screensaver" version="1.0">
  <property name="saver" type="empty">
    <property name="mode" type="int" value="0"/>
    <property name="enabled" type="bool" value="false"/>
  </property>
  <property name="lock" type="empty">
    <property name="enabled" type="bool" value="false"/>
  </property>
</channel>

~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml with content:

<?xml version="1.0" encoding="UTF-8"?>

<channel name="xfce4-power-manager" version="1.0">
  <property name="xfce4-power-manager" type="empty">
    <property name="power-button-action" type="empty"/>
    <property name="lock-screen-suspend-hibernate" type="empty"/>
    <property name="logind-handle-lid-switch" type="empty"/>
    <property name="blank-on-ac" type="int" value="0"/>
    <property name="blank-on-battery" type="int" value="0"/>
    <property name="dpms-enabled" type="bool" value="false"/>
    <property name="dpms-on-ac-sleep" type="empty"/>
    <property name="dpms-on-ac-off" type="empty"/>
    <property name="dpms-on-battery-sleep" type="empty"/>
    <property name="dpms-on-battery-off" type="empty"/>
    <property name="show-panel-label" type="empty"/>
    <property name="inactivity-sleep-mode-on-ac" type="empty"/>
    <property name="inactivity-sleep-mode-on-battery" type="empty"/>
    <property name="show-tray-icon" type="bool" value="false"/>
  </property>
</channel>
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0

You can add Hidden=true to /etc/xdg/autostart/light-locker.desktop. This will disable it for all users.

Command example:

echo "Hidden=true" >> /etc/xdg/autostart/light-locker.desktop

Tested on Xubuntu 20.04.

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