PowerManager-ERROR: Error in dbus when starting mate-power-preferences

[thommignot1]

Expected behaviour

I expect mate-power-preferences to show up

Actual behaviour

$> mate-power-preferences 

(mate-power-preferences:2961): PowerManager-WARNING **: 19:01:31.129: Failed to get session for pid 2961: The name is not activatable

(mate-power-preferences:2961): PowerManager-ERROR **: 19:01:31.137: Error in dbus - GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Invalid argument
Trace/breakpoint trap (core dumped)

Steps to reproduce the behaviour

Sorry I don't know how I came to this

MATE general version

$> pacman -Ss mate | grep installed
extra/caja 1.26.3-1 (mate) [installed]
extra/libmatekbd 1.26.0-1 [installed]
extra/libmatemixer 1.26.1-1 [installed]
extra/libmateweather 1.26.3-1 [installed]
extra/marco 1.26.2-2 (mate) [installed]
extra/mate-applets 1.26.1-1 (mate-extra) [installed]
extra/mate-backgrounds 1.26.0-1 (mate) [installed]
extra/mate-control-center 1.26.1-1 (mate) [installed]
extra/mate-desktop 1.26.2-1 (mate) [installed]
extra/mate-icon-theme 1.26.0-1 (mate) [installed]
extra/mate-media 1.26.2-1 (mate-extra) [installed]
extra/mate-menus 1.26.1-1 (mate) [installed]
extra/mate-notification-daemon 1.26.1-1 (mate) [installed]
extra/mate-panel 1.26.4-1 (mate) [installed]
extra/mate-polkit 1.26.1-1 (mate) [installed]
extra/mate-power-manager 1.26.1-1 (mate-extra) [installed]
extra/mate-screensaver 1.26.2-1 (mate-extra) [installed]
extra/mate-sensors-applet 1.26.0-2 (mate-extra) [installed]
extra/mate-session-manager 1.26.1-1 (mate) [installed]
extra/mate-settings-daemon 1.26.1-1 (mate) [installed]
extra/mate-themes 3.22.24-1 (mate) [installed]
extra/mate-user-guide 1.26.2-1 (mate) [installed]

Package version

Linux Distribution

$> uname -a
Linux warchy 6.7.5-arch1-1.1 # ...

Link to bugreport of your Distribution (requirement)

I don't know what that means ?

[Hagar01]

Still in 1.28
dbus doesnt seem to be used when compiled for wayland.

[sxl613]

Just as a +1, this happens to me too

$ mate-power-preferences

(mate-power-preferences:11877): PowerManager-WARNING **: 11:08:08.444: Failed to get session for pid 11877: The name is not activatable

(mate-power-preferences:11877): PowerManager-ERROR **: 11:08:08.459: Error in dbus - GDBus.Error:org.freedesktop.DBus.Error.FileNotFound: No such file or directory
zsh: trace trap (core dumped)  mate-power-preferences

$ uname -a
Linux sl 6.8.5-arch1-1 # ...

And general version information

$ pacman -Ss mate | grep installed
extra/atril 1.28.0-2 (mate-extra) [installed]
extra/caja 1.28.0-1 (mate) [installed]
extra/caja-image-converter 1.28.0-1 (mate-extra) [installed]
extra/caja-open-terminal 1.28.0-1 (mate-extra) [installed]
extra/caja-sendto 1.28.0-1 (mate-extra) [installed]
extra/caja-share 1.28.0-1 (mate-extra) [installed]
extra/caja-wallpaper 1.28.0-1 (mate-extra) [installed]
extra/caja-xattr-tags 1.28.0-1 (mate-extra) [installed]
extra/engrampa 1.28.1-1 (mate-extra) [installed]
extra/eom 1.28.0-1 (mate-extra) [installed]
extra/leiningen 2.10.0-2 [installed]
extra/libmatekbd 1.28.0-1 [installed]
extra/libmatemixer 1.28.0-1 [installed]
extra/libmateweather 1.28.0-1 [installed]
extra/marco 1.28.1-1 (mate) [installed]
extra/mate-applets 1.28.0-1 (mate-extra) [installed]
extra/mate-backgrounds 1.28.0-1 (mate) [installed]
extra/mate-calc 1.28.0-1 (mate-extra) [installed]
extra/mate-control-center 1.28.0-1 (mate) [installed]
extra/mate-desktop 1.28.2-1 (mate) [installed]
extra/mate-icon-theme 1.28.0-1 (mate) [installed]
extra/mate-icon-theme-faenza 1.20.0-2 (mate-extra) [installed]
extra/mate-media 1.28.1-1 (mate-extra) [installed]
extra/mate-menus 1.28.0-1 (mate) [installed]
extra/mate-netbook 1.26.0-1 (mate-extra) [installed]
extra/mate-notification-daemon 1.28.0-1 (mate) [installed]
extra/mate-panel 1.28.0-2 (mate) [installed]
extra/mate-polkit 1.28.1-1 (mate) [installed]
extra/mate-power-manager 1.28.1-1 (mate-extra) [installed]
extra/mate-screensaver 1.28.0-1 (mate-extra) [installed]
extra/mate-sensors-applet 1.28.0-1 (mate-extra) [installed]
extra/mate-session-manager 1.28.0-1 (mate) [installed]
extra/mate-settings-daemon 1.28.0-1 (mate) [installed]
extra/mate-system-monitor 1.28.1-1 (mate-extra) [installed]
extra/mate-terminal 1.28.1-1 (mate-extra) [installed]
extra/mate-themes 3.22.24-1 (mate) [installed]
extra/mate-user-guide 1.28.0-1 (mate) [installed]
extra/mate-user-share 1.28.0-1 (mate-extra) [installed]
extra/mate-utils 1.28.0-1 (mate-extra) [installed]
extra/mozo 1.28.0-1 (mate-extra) [installed]
extra/perl-www-mechanize 2.18-1 [installed]
extra/pluma 1.28.0-2 (mate-extra) [installed]

[sxl613]

I've figured out where this error is coming from so I'm posting here in case this can help anyone else.

For me the error was the CanHibernate check erroring out. You can try running
dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.CanHibernate.

If that errors out chances are that is the culprit.
For me this was caused by a broken hibernation setup. Make sure you have resume=UUID= and resume-offset (if using a swap file) set correctly[1].

Also, something to watch out for is having a swap file in your home directory (e.g. /home/swapfile or similar). You'll have to move the swapfile or modify sandboxing options for logind[2].

[1] https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate#Hibernation
[2] systemd/systemd#15354 (comment)