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I am a new Ubuntu user and I moved to Ubuntu 16.04 a week ago.

When I turn on my PC I can use it normally for about 5 minutes. After that, it is impossible for me to open any app, and the ones already open just don't respond, although I can still navigate on my PC.

When I go to the process manager, I can see all my apps that are not responding but I can't kill them.

Also when I click on shutdown button (or reboot), my PC freezes.

Any suggestions?

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    are you running out of memory? do you have swap enabled? – ravery Nov 25 '17 at 17:12
  • No I am not, I have 16gb of memory and a 500mb swap partition. – Abigael Laldji Nov 25 '17 at 18:34
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    When the system starts to freeze, could you please run { free -h; ps aux; } | curl -F 'clbin=<-' https://clbin.com and then edit your question to include the returned link? Thanks. – David Foerster Nov 25 '17 at 23:03
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    @DavidFoerster I couldn't get a link from your command line. Told me "curl : couldn't resolve host". Though I figure out that my problem came from graphic pilotes. So I installed new ones and every thing work fine now. I thank you for your time. – Abigael Laldji Nov 26 '17 at 9:28
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    If you solved your problem yourself, please answer your own question and accept your answer. Don’t put the answer in your question or the comments! Send me a message in the comments if you want my up-vote. :-) – David Foerster Nov 26 '17 at 10:06
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To solve my problem, I had to install new nvidia drivers. The applications stop freezing and I can shut down normally.

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