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lalebarde
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Joined: 03 Sep 2006
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Location: France, Haute-Garonne

PostPosted: Tue Jun 10, 2014 9:24 am    Post subject: [SOLVED] unexpected log out Reply with quote

Hi,

Sometimes, my PC unexpectedly closes my session (log out) while I am working, and puts me back the login window. If I have terminal 1 logged with root and 2 logged with another user (without X), these ones are not logged out. For example, for the last two hours, it has happened four times. The last two while typing this post and launching ksnapshot.

Other times, it leads to a reboot. So I have investigated:
  • the UPS, but the behaviour is unchanged without it).
  • the temperatures, but everything looks fine.


I have started to investigate also:

  • the memory (totally tested and passed).


Here is my configuration:
Code:
# uname -a
Linux JANUS 2.6.37-tuxonice #11 SMP PREEMPT Fri Mar 29 18:34:41 CET 2013 x86_64 Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz GenuineIntel GNU/Linux


Any idea please? What should I investigate?


Last edited by lalebarde on Thu Sep 11, 2014 9:06 am; edited 1 time in total
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Voltago
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Joined: 02 Sep 2003
Posts: 2584
Location: userland

PostPosted: Wed Jun 11, 2014 1:31 am    Post subject: Reply with quote

Sounds like your desktop environment crashes, or the x server. After it happens, do not log back in immediatly, but go to a text terminal and check in /var/log the files Xorg.0.log(.old), kdm.log (assuming you're using kdm), messages and in your home folder .xsession-errors for error messages.
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Hu
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Joined: 06 Mar 2007
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PostPosted: Wed Jun 11, 2014 1:50 am    Post subject: Reply with quote

Does the problem happen on a more recent kernel? If I recall correctly, 2.6.37 is not a long term kernel, and there have been many important kernel fixes throughout the tree since then, some of which are security fixes.

What is the output of emerge --info? It would help us to know more about your software environment, and that provides extensive information quickly.
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russK
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Joined: 27 Jun 2006
Posts: 630

PostPosted: Wed Jun 11, 2014 2:05 am    Post subject: Reply with quote

also take a look at the 'dmesg' output after the logout in addition to the other suggestions
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lalebarde
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Joined: 03 Sep 2006
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Location: France, Haute-Garonne

PostPosted: Thu Sep 11, 2014 9:06 am    Post subject: Reply with quote

I finally used my backup. I don't know what was the origin of the problem. Sorry for answering so late, this summer was very apocalyptic.
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