You can check your setting with: $ gsettings get com.canonical.Unity.Panel systray-whitelist The default values are: ['JavaEmbeddedFrame', 'Wine', 'scp-dbus-service', 'Update-notifier'] In my case this had been changed to "['all']" If you have it installed, you can also use dconf-editor to check/set the value.
I followed a blog post like this back then: http://www.webupd8.org/2011/04/how-to-re-enable-notification-area.html -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/207583 Title: [hardy, oneiric] Two instances of applet icon are displayed in notification area Status in “gnome-power-manager” package in Ubuntu: Confirmed Bug description: The subject says it all. After switching to battery power in a shot while I observe two Power Manager icons in the notification area. Both "icons" seem to provide different information, e.g. estimated battery life/charge time differs by 5 minutes. I am running up to date Hardy amd64 on the following laptop: https://wiki.ubuntu.com/LaptopTestingTeam/DellInspiron640m To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/207583/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

