By using --query option like I do in https://bugzilla.xfce.org/attachment.cgi?id=7254 I referred to in previous comment (or in the attachment I uploaded in comment #4 about two and half years ago).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1537507 Title: xflock4 fails to lock, if light-locker (and xscreensaver) is not running, but still exits with 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-session/+bug/1537507/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs