Can't access ACPI events in /var/run/acpid.socket

[perberos]

Hello,
Yesterday after the update of mate repository, I installed mate. But I have a problem : when I put on my desktop the battery applet it says to me:
Can't access ACPI events in /var/run/acpid.socket! Make sure the ACPI subsystem is working and the acpid daemon is running.

But my  acpid daemon is running

Can you Help me?

taken from: https://bbs.archlinux.org/viewtopic.php?pid=1017297#p1017297

[perberos]

debo conseguir una bateria :s

[perberos]

applet work http://imgur.com/uolIz

[perberos]

after pacman update, it seems like the folder /proc/acpi/battery disapear.

[szesch]

Is this issue still occurring? If not, is it an Arch specific issue caused by another package?

[perberos]

I need test it with linux 3.2

[MHellmund]

I have the same problem with recent MATE on recent Debian sid. acpid is running, the socket exists.
I don't know if this observation is helpful: the (working) gnome2 applet says (right-click, select "about")
"upower backend enabled". The mate applet seems to be compiled without upower support. Is this
the real problem?

[szesch]

The battstat applet is now built with optional upower support.

b958403

[MHellmund]

On Tue, 24 Apr 2012 13:13:16 -0700
Steve Zesch reply@reply.github.com wrote:

The battstat applet is now built with optional upower support.

Thank you! It works great now!