Reboot machine gracefully from CLI?

[throttlemeister]

I want to script a logout/reboot to exit KDE gracefully and reboot, not just issue a shutdown -R now that will just kill all processes and reboot.

I have found several solutions that are all years old and that involve installing no longer existing utilities that are part of QT4, which I do not want to do. That’s just introducing legacy that can potentially can come back later to haunt me. Ie, I am not going to install libqt4 just to get the qdbus binary.

I can use qdbus-qt5, but it appears “org.kde.Shutdown” is no longer available, so that doesn’t help much either…

Can’t find any recent posts on the topic using commands available in Plasma / QT5. There is a topic on here in Tips & Tricks that uses org.kde.ksmserver but that throws a dbus error when invoking through qdbus-qt5.

Any suggestions here on how to do this?

[WilsonEPhillips]

This may not be the best option, but it is what I came up with. These are in my aliases list.

alias reboot=‘systemctl reboot’ # allows reboot from the command line
alias off=‘systemctl poweroff’ # allows power down from the command line

So,

systemctl reboot

systemctl poweroff

[Duha]

@throttlemeister

I can use qdbus-qt5, but it appears “org.kde.Shutdown” is no longer available, so that doesn’t help much either…

Can’t find any recent posts on the topic using commands available in Plasma / QT5. There is a topic on here in Tips & Tricks that uses org.kde.ksmserver but that throws a dbus error when invoking through qdbus-qt5.

Logout, reboot and shutdown using the terminal

When I want to log out of my Plasma session, I run a command: Please don’t use that. qdbus org.kde.LogoutPrompt /LogoutPrompt org.kde.LogoutPrompt.promptLogout qdbus org.kde.LogoutPrompt /LogoutPrompt promptReboot qdbus org.kde.LogoutPrompt /LogoutPrompt promptShutdown to get a prompt or qdbus org.kde.Shutdown /Shutdown org.kde.Shutdown.logout logoutAndReboot logoutAndShutdown to perform an action without prompt This works in Plasma 5 since a few years, the ksmserver API will be…

Works for me. Can you tell me the exact command you use and the error message?

[dzon]

There was something about it here: https://discuss.kde.org/t/logout-reboot-and-shutdown-using-the-terminal/743/4

[throttlemeister]

I get:

Could not connect to D-Bus server: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11

From command:

sudo qdbus-qt5 org.kde.ksmserver /KSMServer logout 1 1 1

[throttlemeister]

Doh!

I am so used to needing sudo, I forget I am trying to logout and reboot my own session.

So when I do:

qdbus-qt5 org.kde.ksmserver /KSMServer logout 1 1 1

It does work…

[Duha]

@throttlemeister please read the link I posted. The ksmserver API might be removed in Plasma 6.

[Tionisla]

as follow up: If you want to have platform independent code, the qdbus method also works just fine on FreeBSD (while the systemctl will not).

e.g for 13.2
qdbus-qt5 org.kde.LogoutPrompt /LogoutPrompt org.kde.LogoutPrompt.promptLogout