Lubuntu 15.04 - No power indicator in applet indicator

Bug #1446247 reported by Pablo César Galdo Regueiro on 2015-04-20
This bug affects 23 people
Affects Status Importance Assigned to Milestone
xfce4-power-manager (Ubuntu)

Bug Description

There's no battery/power indicator in taskbar.
xfce4-power-manager is not set as default power manager in LXSession configuration, but setting it by hand doesn't solve the indicator issue.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lubuntu-default-settings 0.42
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: LXDE
Date: Mon Apr 20 15:52:37 2015
InstallationDate: Installed on 2015-04-20 (0 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150224)
PackageArchitecture: all
SourcePackage: lubuntu-default-settings
UpgradeStatus: No upgrade log present (probably fresh install)

description: updated
Walter Lapchynski (wxl) wrote :

does adding the battery monitor lxpanel applet not solve your needs?

Walter Lapchynski (wxl) wrote :

also lxsession-default-apps has power manager set to "auto," which is what it should be. this is not an issue with lxsession or lubuntu-default-settings.

no longer affects: lubuntu-default-settings (Ubuntu)
no longer affects: lxsession (Ubuntu)
Walter Lapchynski (wxl) wrote :

from what i've come to understand, while that battery monitor can work, the intention is to use the plugin provided by xfce4-power-manager. it does seem that something is amiss there, though the plugins package is installed.

Changed in xfce4-power-manager (Ubuntu):
status: New → Confirmed
Changed in xfce4-power-manager (Ubuntu):
importance: Undecided → Medium
Menachem Shapiro (menachem) wrote :

I have the same exact issue. I recently upgraded to 15.04. I had the power indicator icon in 14.10, but it disappeared when I upgraded.

I was doing some searching online, and found a lot of people suggesting to going into the xfce4-power-manager-settings and setting "Show tray icon:" to "Always show icon". Some of this information is a couple years old, so it is possible that the answer no longer applies.

When I open xfce4-power-manager-settings, the "Show tray icon" option does not appear.

More online research led me to the following configuration file: ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml

It looks like older versions of this file had a "Show tray icon" option [see], but the one installed in 15.04 does not.

Either this option is no longer supported, or someone left it out accidentally.

Maybe this can lead someone towards a solution for this problem.

Jev (jev-kuznetsov) wrote :

I've compared xfce4-power-manager.xml on 14.10 to 15.04. Both do not have "Show tray icon" option, so this is not something that disappeared between versions 14 and 15

Dmitry Alexandrov (dimzon541) wrote :

@Jev (jev-kuznetsov)

tray-icon is no more xfce4-power-manager buildin function.
tray-icon is now xfce4-power-manager-plugins feature.

15.04 distribution lacks this files in plugin package ( in xfce4-power-manager-plugins):
this is 14.10 package content:
this is 15.04 package content:

Israel Dahl (israeldahl) wrote :

Hi I want to comment that running xfce4-power-manager used to show a tray Icon in JWM, however this is no longer the case in 15.04 as well.
So, I would say this is an issue of xfce4-power-manager no longer using
For the app. This is highly unfortunate as, systemd also made upower lose functionality drastically so my fallback battery indicator that I used no longer compiles, and would require a rewrite to use dbus rather than just upower.

Schneider (schneider-b) wrote :


Upon Israels reply I did a random search, sharing the same bug ever since, so I was able to find this workaround, which solved it for me:

It basically updates xfce power manager inlcuding plugins to 1.5.0.
For me, being on a laptop, it is critical to have control over screen brightness, that's why the battery monitor didn't cut it for me.

By following the URL provided by Schneider, I managed to have the battery indicator back to work on Lubuntu 15.04(upgraded from 14.10). Here are my manual installation steps of xubuntu-staging without using 'apt-get dist-upgrade:'

1. goto and download packages based on your architecture. For example:
    $ wget
    $ wget
    $ wget
2. get the latest libxfce4panel-2.0. For example:
    $ wget
3. install libxfce4-ui-2-0 for one of he required dependencies:
    $ sudo apt-get install libxfce4ui-2-0
4. update xfce4-power-manager to 1.5.x by installing .deb files downloaded in step 1 and 2:
    $ sudo dpkg -i libxfce4panel-2.0-4_4.12.0-3ubuntu2_amd64.deb xfce4-power-manager-data_1.5.2-0ubuntu1~15.10_all.deb xfce4-power-manager_1.5.2-0ubuntu1~15.10_amd64.deb xfce4-power-manager-plugins_1.5.2-0ubuntu1~15.10_amd64.deb
5. run xfce4-power-manager-settings command from the command line and then check that Status notifications and System tray icon are set to ON.
6. run xfce4-power-manager --restart from the command line

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