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I am on Ubuntu 11.10 and this is at least my 20th install of Ubuntu and have had a fair few niggling issues with it. The most annoying is the fact that when I go to shutdown the laptop from the cog, whether logged in or not it simply restarts - everytime! The only way to prevent this is to hold the power button, or keep it in hibernate - not ideal.

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closed as too localized by Eric Carvalho, Basharat Sialvi, Kevin Bowen, green7, AgentCool Apr 17 '13 at 14:01

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Recently I faced exactly similar issue Debian. I feel like I face this after installing TLP application on my system. Have you installed TLP in your machine. –  Abhijeet Feb 27 '12 at 15:28
    
have you tried shutting down on terminal? sudo halt or sudo shutdown -h now –  Gerep Feb 27 '12 at 15:41
    
thanks for the replies.... Abhijeet - dont know what TLP is! Gerep - tried both. sudo halt freezes at the purple screen after it has gone throught the dots. **Sudo shutdown -h now ** does the same as shutdown from the cog. i have checked bios settings and reset everything but still no joy. –  user49270 Mar 5 '12 at 9:16
    
This question appears to be abandoned and unanswered, could you perhaps add more detail to your question? If this question no longer applies then you can either delete it or answer it yourself if you've solved the problem. Thanks! –  Eric Carvalho Apr 4 '13 at 0:40

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