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Previously, Ubuntu tweak, myUnity and other Unity tweaking tools can provide configuration to modify current whitelist for Unity’s system tray or systray. But with recent upgrade (as usual), it was suddenly gone and nowhere to be found.
But at last, there’s a workaround (again..pfff) for this, here’s how:
1. Add this PPA and update+upgrade your Ubuntu 13.04 system.
sudo add-apt-repository ppa:timekiller/unity-systrayfix sudo apt-get update sudo apt-get upgrade
2. Afterwards, restart Unity, press ALT+F2 (run application), then type in unity, press ENTER key.
3. You must have dconf-editor to modify configuration, if not yet installed, do this:
sudo apt-get install dconf-tools
4. Open dconf-editor and navigate to com > canonical > unity > panel and the “systray-whitelist” should be displayed there so you can enable some apps to be able to use the systray. From the default setting, change it to ‘all’ (yes with the single quote “‘“character)
5. Then configure Pidgin, from Tools > Preferences. Set the Show System Tray Icon to “always”
Wish to hide the nm-applet when decide to use conventional ifup instead of network-manager? Here’s how:
1. Install Gconf-Editor:
$> sudo apt-get install gconf-editor
2. Run gconf-editor and go to: Apps –> nm-applet
3. Uncheck the setting called show-applet
GMail Notifier and Vuze are some of my mostly used application, and when I upgraded my previously 10.04 to 11.04 system (Ubuntu), I noticed that some of my currently running application that has system tray icon or indicator gone in the Unity side panel and in the system tray area. Googled it and found this link: Ubuntu 11.04 Fix: Show All Icons/Indicators Notification Area.
The quickest way to deal with it is the following:
1. From console:
$> gsettings set com.canonical.Unity.Panel systray-whitelist "['all']"
2. Then refresh the Unity. Press Alt-F2 and type: