Ubuntu – (Dual monitors) Indicators displaying in panel on both monitors

Well this has been an adventure. I had seen this MintForum thread before but ignored it mainly because it was talking about bonobo (which is frankly a silly word) but also because the applet in discussion was the MintMenu.

I decided to go back there today and actually read it. plumm's post has given me a few clues and has actually got a few things working (after some modification). Here's what I'm doing. Until I've got everything back this post is a work in progress.

First you have to locate your bonobo-activation-config file:

# locate bonobo-activation-config
/etc/bonobo-activation/bonobo-activation-config.xml

Then we find where all the applets' bonobo-server-item-configuration files are:

# locate bonobo/server | grep GNOME
/usr/lib/bonobo/servers/GNOME_BrightnessApplet.server
/usr/lib/bonobo/servers/GNOME_DictionaryApplet.server
/usr/lib/bonobo/servers/GNOME_GtikApplet.server
/usr/lib/bonobo/servers/GNOME_InhibitApplet.server
/usr/lib/bonobo/servers/GNOME_Magnifier.server
/usr/lib/bonobo/servers/GNOME_Moniker_std.server
/usr/lib/bonobo/servers/GNOME_SeahorseApplet.server
/usr/lib/bonobo/servers/GNOME_TSClientApplet.server
/usr/local/lib/bonobo/servers/GNOME_ClockApplet_Factory.server
/usr/local/lib/bonobo/servers/GNOME_FishApplet_Factory.server
/usr/local/lib/bonobo/servers/GNOME_NotificationAreaApplet.server
/usr/local/lib/bonobo/servers/GNOME_Wncklet_Factory.server

Then we put the two together, creating new xml <items> in the bonobo-activation-config.xml. We only need the common path so there are only two things to carry. Here's my finished file:

<?xml version="1.0"?>

<oafconfig>

<searchpath>
    <item>/usr/lib/bonobo/servers</item>
    <item>/usr/local/lib/bonobo/servers</item>
</searchpath>

</oafconfig>

After a restart everything but GNOME_ClockApplet has loaded back up.

More on this when I've fixed it.

It happens to me to from time to time. I don't know the cause.

To make the missing panel indicators reappear without rebooting you can restart the indicators manually by running the following command in a terminal or with Alt+F2

restart unity-panel-service  

The panel indicators will blink off for a second, and then all of the panel indicators will restart and immediately reappear.

In Ubuntu 15.04 and later restart the panel indicators manually by running the following command:

systemctl --user restart unity-panel-service   

In Ubuntu 17.10 and later GNOME has replaced Unity as the default desktop environment. To make the missing panel indicators reappear without rebooting in Ubuntu 17.10 and later run the following command:

setsid gnome-shell --replace # Press Enter again before closing the terminal.