Re: Unprivileged power managing in GuixSD: dbus-send not working

[swedebugia]

On 2016-01-31 11:27, address@hidden wrote:
> address@hidden skribis:
>
> > I'm using GuixSD with xfce recently pulled, reconfigured and 
> > restarted.
> >
> > I have found that power managing dbus-send commands (from
> > http://andrusiv.com/blog/2011/12/12/shutdown-dbus.html) does not work
> > at all, eg:
>
> I think you’ll find it easier to use the ‘upower’ command, which does
> something equivalent:
>
>   $(guix build upower)/bin/upower --dump
>
> Works for me on current GuixSD.
>
> > $ dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit
> > /org/freedesktop/ConsoleKit/Manager
> > org.freedesktop.ConsoleKit.Manager.Stop
> >
> > Error org.freedesktop.DBus.Error.ServiceUnknown: The name
> > org.freedesktop.ConsoleKit was not provided by any .service files
>
> That’s expected: we don’t use ConsoleKit (it’s deprecated.)
>
> > $ dbus-send --print-reply --system --dest=org.freedesktop.UPower
> > /org/freedesktop/UPower org.freedesktop.UPower.Suspend
> >
> > Error org.freedesktop.DBus.Error.UnknownMethod: Method "Suspend" with
> > signature "" on interface "org.freedesktop.UPower" doesn't exist
> >
> > Is this because dbus / polkit is currently misconfigured?
>
> Good question, I’m not sure what’s going on here.  Stracing dbus-daemon
> doesn’t reveal anything obvious.
>
> Anyone D-Bus-savvy has ideas?
>
> > Is there anything I can do about it? I'm guessing the incapability of
> > the xfce power menu to function is related to this.
>
> Probably.

Searching around with 'upower test' I found this to test dbus objects:
https://github.com/martinpitt/python-dbusmock

do we have any test that verify upower working as expected yet? If not 
this program might be of help.

cheers
sdb