Hi.

It's been a while since I used this but I used to put the PC to sleep at a set time and used sudo pm-suspend command in Task Scheduler. Now I notice it doesn't work because it needs the root password. So I'm guessing you can't add anything to "sudo pm-suspend" command in TS and have to alter the sudoers file in /etc/sudoers? I've read an Arch wiki page on it but the page is out of date and opensuse might be different. What is the correct way to do this?

Thanks

You'll need to adjust the /etc/sudoers file manually i'm afraid in order for Task Scheduler to be able to work. If Task Scheduler is running commands from your session you might also want to consider a command such as the following instead, which does not require root access (but does require a running KDE session):

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement org.kde.Solid.PowerManagement.suspendToRam

Thanks, ok so I modified the command to :

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement org.kde.Solid.PowerManagement.suspendToRam

and ran it from TS and it returned:

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Error: org.freedesktop.DBus.Error.UnknownMethod
No such method 'suspendToRam' in interface 'org.kde.Solid.PowerManagement' at object path '/org/kde/Solid/PowerManagement' (signature '')
-------------------------------------------------------------------------
End of script execution. Type Enter or Ctrl+C to exit.
-------------------------------------------------------------------------

I don't mind editing sudoer if I have to but if it can be done from TS all the better.

Sundance Kid wrote:Thanks, ok so I modified the command to :

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement org.kde.Solid.PowerManagement.suspendToRam

and ran it from TS and it returned:

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Error: org.freedesktop.DBus.Error.UnknownMethod
No such method 'suspendToRam' in interface 'org.kde.Solid.PowerManagement' at object path '/org/kde/Solid/PowerManagement' (signature '')
-------------------------------------------------------------------------
End of script execution. Type Enter or Ctrl+C to exit.
-------------------------------------------------------------------------

The correct command should be:

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement/Actions/SuspendSession suspendToRam

Or just use "systemctl suspend" instead of "pm-suspend", this should work as user as well.

Much obliged, first one does indeed now work (not tried second one yet), thanks.

For future reference does the same command apply for suspending to disk? Like..

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement/Actions/SuspendSession suspendToDisk

And does this sudoers method still apply? https://wiki.archlinux.org/index.php/pm ... ion_method

Thanks again

Sundance Kid wrote:For future reference does the same command apply for suspending to disk? Like..

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qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement/Actions/SuspendSession suspendToDisk

Yes, exactly. Or "systemctl hibernate".

And does this sudoers method still apply? https://wiki.archlinux.org/index.php/pm ... ion_method

Yes, except that there's no "power" group on openSUSE AFAICS.
But pm-utils is deprecated, better use the systemctl method I'd say.

PS: You could also have a look at kshutdown:
http://kshutdown.sourceforge.net/

alternative command (in case you need this outside KDE or don't want to run powerdevil on a desktop box)

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qdbus --system org.freedesktop.login1 /org/freedesktop/login1 Suspend false

resp.

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qdbus --system org.freedesktop.login1 /org/freedesktop/login1 Hibernate false

Humm, so things take a turn for the weird.

The commands that will run from Task Scheduler work when clicking the Run Now button but left to work at the selected time do not, the command isn't executed or something. I don't see anything untoward, any ideas?

Sundance Kid wrote:The commands that will run from Task Scheduler work when clicking the Run Now button but left to work at the selected time do not, the command isn't executed or something. I don't see anything untoward, any ideas?

Well, the commands are run by cron (a system daemon), not KDE. So probably they don't find the (user's) DBUS session then.

Have you tried the system bus method luebking posted?
"systemctl xxx" should work as well I suppose, but I'm not sure whether it would have the required permissions when run as user by cron (normally only a user logged in at the active console is allowed to suspend/hibernate).

You could of course also add your command (i.e. either "systemctl suspend" or "pm-suspend") to root's crontab, by launching systemsettings as root:

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kdesu kcmshell4 cron

Or try kshutdown, that seems to offer exactly what you want to achieve.
Packages for openSUSE are available in the KDE:Extra repo:
http://software.opensuse.org/package/kshutdown

Things is I've got VLC to close using pkill vlc one minute before the suspend is supposed to happen, and that works fine, so just assumed..

When I run (Run Now) qdbus --system org.freedesktop.login1 /org/freedesktop/login1 Suspend false it returns..

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Error: org.freedesktop.DBus.Error.AccessDenied
Rejected send message, 4 matched rules; type="method_call", sender=":1.728" (uid=1000 pid=4011 comm="qdbus --system org.freedesktop.login1 /org/freedes") interface="(unset)" member="Suspend" error name="(unset)" requested_reply="0" destination="org.freedesktop.login1" (uid=0 pid=741 comm="/usr/lib/systemd/systemd-logind ")
-------------------------------------------------------------------------
End of script execution. Type Enter or Ctrl+C to exit.
-------------------------------------------------------------------------

I'll give try crontab in a bit, but does that error message indicate a larger problem?

Sundance Kid wrote:When I run (Run Now) qdbus --system org.freedesktop.login1 /org/freedesktop/login1 Suspend false it returns..

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Error: org.freedesktop.DBus.Error.AccessDenied
Rejected send message, 4 matched rules; type="method_call", sender=":1.728" (uid=1000 pid=4011 comm="qdbus --system org.freedesktop.login1 /org/freedes") interface="(unset)" member="Suspend" error name="(unset)" requested_reply="0" destination="org.freedesktop.login1" (uid=0 pid=741 comm="/usr/lib/systemd/systemd-logind ")
-------------------------------------------------------------------------
End of script execution. Type Enter or Ctrl+C to exit.
-------------------------------------------------------------------------

I'll give try crontab in a bit, but does that error message indicate a larger problem?

I think that's because when cron runs the command on behalf as your user, the session is not registered with logind, therefore the command has no permissions to call that method.

So I guess the only options then are to run either "systemctl suspend" or "pm-suspend" as root by using "sudo" or adding the command to the system cron (you have to run the Task Scheduler as root for this, as mentioned in my previous post). You can of course kill vlc as root as well.

Ok, I think we've got this covered now. Just to confirm that the little KShutdown program works well, as does systemctl suspend as root (kdesu kcmshell4 cron). Hopefully someone else finds this thread helpful in future. Thanks for all the help, very informative!