I'm actually removing the lock option from the menu for 20.04 to help reduce any confusion. Locking a live session can be confusing for users, which is why we have disabled this option in the past.
>From 19.10 and forward, it is possible to simply turn the locking option back on via the Screensaver settings, Lock Screen tab. The menu option can be found by right-clicking the Whiskermenu icon and navigating to Properties > Commands. The session can also be locked with Super + L or Ctrl + Alt + Del. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1835668 Title: Locking screen on live system no longer possible with Xubuntu 18.10/19.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xubuntu-default-settings/+bug/1835668/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs