Battery Indicator Has Disappeared From Gnome Panel


Answer :

Note: Try steps 4/5 first, it may be fixed with 1st hit.

Below the extended instruction to debug the problem with the indicator.

  1. Check if indicator-power-service is running:

    ps ax | grep indicator-power

  2. If it's running, try reset its settings then restart it:

    dconf reset -f /com/canonical/indicator/power/ pkill -f indicator-power-service

    No success, locate it then try it from terminal (looking for any errors in output):

    sudo updatedb; locate -r indicator-power-service$

    My system is 64bit, So:

    /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service

    If it works with command, then some thing wrong with its autostart.

  3. As it was checked, it isn't running on start up. Verify the existence of:

    /usr/share/upstart/sessions/indicator-power.conf

    description "Indicator Power Backend"  # Want to move to indicator-services-[start|end], but that's not all # there yet.  Use the signals that exist today for now.  start on indicators-loaded or indicator-services-start stop on desktop-end or indicator-services-end  respawn  exec /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service

    /etc/xdg/autostart/indicator-power.desktop

    [Desktop Entry] Type=Application Name=Indicator Power Exec=/usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service NotShowIn=Unity; NoDisplay=true StartupNotify=false Terminal=false

  4. This works for me with a fresh Ubuntu 14.04, Modifing indicator-power.desktop for autostart conditions similar to the other indicators. (Submitted bug report lp#1330302)

    sudo nano /etc/xdg/autostart/indicator-power.desktop

    Remove:

    NotShowIn=Unity;

    Replace it with:

    OnlyShowIn=Unity;XFCE;GNOME; AutostartCondition=GNOME3 unless-session gnome

  5. Logout/Login

Well if it didn't work:

  1. Try purge it then reinstall it:

    sudo apt-get remove --purge indicator-power sudo apt-get install indicator-power

    Reboot, Check again

  2. No success, as workaround you can run it this way (you may close terminal after this):

    /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service & disown $!

    & run it in background
    disown $! command to detach a process for current terminal, $! variable that hold PID of last process run in background

    Or better if add it to user startup applications, see How do I start applications automatically on login?


(1)

sudo apt-get install indicator-applet-complete sudo apt-get install dconf-editor

change icon-policy to present. This might help you.

enter image description here

(2)

If first one do not work you can try to install indicator-power by sudo apt-get install indicator-power. If indicator-power is already install then uninstall it and then reinstall. This might get the power indicator back on the panel. Have fun.


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