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After I disconnected my TV by pulling the HDMI cable, Ubuntu did not return to the right graphics mode. There is only the background, no launchers or icons, however I can open a menu by right clicking.

I am using Ubuntu 12.10, and I have AMD Catalyst 12.10 installed.

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CAPS OFF. This is a Q&A site, not a forum. The result of your question is supposed to stand here as a future reference, should this problem occur to someone again, not only as a answer to you right now. – user98085 Jan 4 '13 at 2:50

try switching to a virtual terminal and back (Ctrl+Alt+F1 followed by Ctrl+Alt+F7) This helps when I am disconnecting an external screen.

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