running ubuntu 12.04 - all well after installation - looking for some options in compiz do organize expo and other desktop stuff, now systray-panel (= program-menus cant be shown and icons unvisible and no logoff,...) is not drawn at the top of screen/desktops the launcher at left doesnt appear while moving mouse to then left any programs can only be started via command-line by getting a terminal with ctrl-alt-T

how can I start/show it again?


Reset unity using this command line

unity --reset

This will reset all unity setting to default.


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  • no problem Sir! Enjoy Ubuntu! – penreturns Jun 23 '12 at 14:43
  • Be aware that resetting Unity will remove your desktop/launcher customizations and bring all open windows to the first virtual workspace. – LexLythius Jan 15 '14 at 14:58

Open compiz config settings manager from a terminal using the command


Then go to the desktop section and click on the unity desktop plugin and select enable.

After a few seconds the top & side bars should re-load.

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