Lubuntu 19.04 lxqt-config-monitor fails

[vmc]

$ /usr/bin/lxqt-config-monitor
 (0x7ffffe4183c0) Warning: Failed to request backend: "org.freedesktop.DBus.Error.Spawn.ChildExited" : "Process org.kde.KScreen exited with status 1"
 (0x7ffffe4183c0) Debug: Connecting to KScreen...
 (0x7ffffe4183c0) Debug: Error: Config is invalid, probably backend couldn't load

[vmc (vmclark)]

Auto-login using ".xinitrc" method

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

I can't reproduce this at all. You'd need to make it far more clear on how to set up the system in order to reproduce this issue. That may mean elaborating on this auto-login method you're using.

[vmc (vmclark)]

Here's how to reproduce the error.

Make the following files as such:
===.xinitrc:===
[[ -f ~/.Xresources ]] && xrdb -merge -I$HOME ~/.Xresources
exec startlxqt
===.bash_profile:===
#
# ~/.bash_profile
#
[[ -f ~/.bashrc ]] && . ~/.bashrc
if [[ -z $DISPLAY ]] && [[ $(tty) = /dev/tty1 ]]; then
    exec startx -- vt1 &> /dev/null
fi
===getty===
sudo systemctl edit getty@tty1
add the following text:
[Service]
ExecStart=
ExecStart=-/sbin/agetty --skip-login --noissue -a vmc %I $TERM
===
To verify that getty is correct:
cat /<email address hidden>/override.conf

[Launchpad Janitor (janitor)]

[Expired for lxqt-config (Ubuntu) because there has been no activity for 60 days.]

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

I couldn't reproduce this, but I'll say that this is not necessarily a supported methodology for Lubuntu. I mean I use awesomewm but I don't expect that Lubuntu ensures that it Just Works™ with it. Should you have a similar problem, my advice would be to test in Debian testing/experimental with the latest LXQt sources and if you find an issue, report it upstream.