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Possible Duplicate:
What should I do when Ubuntu freezes?

I have a problem with my Ubuntu 10.10 system which regularly freezes and can then only be switched off via the mains switch. When I try to re-start the system I need to try repeatedly before it will log in.

How can I trace the reason for this and correct it?

Community
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Brian Buck
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    See also [What should I do when Ubuntu freezes?](http://askubuntu.com/questions/4408/what-should-i-do-when-ubuntu-freezes) - though that's not a duplicate because it doesn't tell you how to troubleshoot the causes. – 8128 Jan 15 '11 at 20:58
  • What graphics card/chip do you run? lspci | grep VGA – wojox Jan 16 '11 at 01:47
  • I don't know - how can I obtain this information? – Brian Buck Jan 17 '11 at 17:55

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Just saw a link about something similar: Ubuntu Wiki Troubleshooting X freezes, hangs, and lockups. It may or may not be your problem, but that's a starting point.

asoundmove
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  • @Brian Buck What solved it? How did you troubleshoot? Write your own answer and accept it if you need to. – djeikyb Mar 17 '11 at 11:35
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Open the log viewer from system->administration and look* for dmesg (reports kernel, network, boot and some overall info;eg will show if new HW is added) and xorg.log (the log for the graphic [server]). You'll then need the search for errors, most likely a graphic card/driver issue if you use Nvdia or Ati.

*if you don't see them directly, hit Ctrl+O and open the needed file, the file dialogue should be by default in /var/log.

papukaija
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