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I just did a clean install of 12.04 on my netbook, then installed xubuntu-desktop. (The reason for that is the showstopper bugs in 11.10 Unity -- like menus not working, or the launch bar capturing the mouse and locking up the machine)

Now, the power button does nothing. Attempting to go to power settings from the xcfe4 settings times out.

I checked, and xfce4-power-manager is running, as well as /usr/lib/upowerd.

Trying

sudo xfce4-power-manager --dump

does nothing for a minute or so, then gives me the following message:

ce4-power-manager:4226): xfce4-power-manager-ERROR **: Did not receive a reply. 
Possible causes include: the remote application did not send a reply, the message 
bus security policy blocked the reply, the reply timeout expired, or the network 
connection was broken.
Trace/breakpoint trap (core dumped)

along with the "crash" icon on the top panel, which I've now seen over 30 times in approximately 8 hours of uptime.

I'd be very interested in knowing how to get back up to the level of functionality that I had with 11.10 on this netbook.

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5
  • This bug report on Xfce's site looks relevant: bugzilla.xfce.org/show_bug.cgi?id=8809 It's still open, but the bug reporter noticed that it might be some interference with the login screen and plugins managed by LightDM.
    – marcus
    Aug 9, 2012 at 2:44
  • 2
    You can try installing the package xfce4-battery-plugin. It contains a battery indicator that is independent of Xfce Power Manager. Too bad I can't add this as an answer.
    – marcus
    Aug 10, 2012 at 1:34
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    I had this problem, i unchecked "Power Manager" from "Application Autostart" list in Settings -> Session and Startup and added another application with this command xfce4-power-manager --no-daemon then i have not have this problem yet.
    – Saeed Zarinfam
    Sep 22, 2012 at 17:12
  • 1
    @SaeedZarinfam Can you post your comment as an answer so we can mark this question as solved? thanks!
    – Jorge Castro
    Jul 6, 2013 at 14:28
  • @JorgeCastro I did it.
    – Saeed Zarinfam
    Jul 7, 2013 at 7:29

1 Answer 1

Reset to default
11

I had this problem, i unchecked "Power Manager" from "Application Autostart" list in Settings -> Session and Startup and added another application with this command xfce4-power-manager --no-daemon then i have not have this problem yet.

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2
  • Thanks, this solved a similar problem for me on Lubuntu 13.10.
    – Duncan Jones
    Feb 16, 2014 at 13:49
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    Additionally, xfce4-power-manager --customize does nothing for me. Instead I need to use xfce4-power-manager-settings. (I'm using Xfce Power Manager 1.2.0 on Ubuntu 14.04.1; version 1.3.1, discussed at the end of bugzilla.xfce.org/show_bug.cgi?id=8809, apparently fixes the bug that is the main subject of this question and for which --no-daemon is a workaround; but this fixed version has not made into ubuntu 14.01 LTR, which continues to provide the buggy xfce4-power-manager.)
    – Silvio Levy
    Dec 30, 2014 at 10:05

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