Poweroff PC when X closes

Hello.
I'm currently trying to setup a very minimal installation for showing presentations.
I've gotten the X server to start at boot by overwriting the systemd service getty@tty1 to run startx instead of agetty.
I've also gotten libreoffice to autostart using .xinitrc.
However when I exit libreoffice the xserver quits and just restarts inclusive libreoffice.
I would like to poweroff the PC as soon as libreoffice quits.
I tried appending "systemctl poweroff" to my .xinitrc (after libreoffice), but for some reason it doesn't get executed.
/etc/systemd/system/[email protected]/override.conf:
[Service]
ExecStart=
ExecStart=-/bin/su [i]username[/i] -l -c /usr/bin/startx
~/.xinitrc
#starting soffice.bin directly to prevent having oosplash running in the background
/usr/lib/libreoffice/program/soffice.bin --impress --norestore --nologo
#Also tried this without exec
exec systemctl poweroff

I just managed to fix it.
I ran 'loginctl show-session $XDG_SESSION_ID' once as normal user and once from .xinitrc and noticed, that the .xinitrc wasn't even run as a real session. (Probably because startx is called by su, which is called directly by systemd)
That's probably the reason why systemctl didn't poweroff my PC when running from .xinitrc, but only when running as a user.
I fixed it by replacing 'exec systemctl poweroff' with 'sudo poweroff' in my .xinitrc and adding 'ALL hostname=NOPASSWD: /usr/bin/poweroff' to /etc/sudoers.

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[Closed] KDE Crash Handler appearing when programs close properly

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Last edited by bicyclingrevolution (2012-09-02 06:34:07)

I did some searching on the Bugtracker (after finding the actual name of the Crash Handler is drkonqi) and discovered that this problem (apps crashing when logging off) goes back to KDE 3 and has never been solved from what I could see. This bug report has been ongoing since 2005! The original poster has a simple solution though: remove the binary! I'll probably do that, since I really don't find it to be any use.
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[https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]
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Try to do it...

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Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

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Poweroff PC when X closes

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