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Diagnosis: I'm running Ubuntun 10.04. It has been running smoothly for pleny of time (8~9 months). I've done the clean install (not upgrading).

One day I left the screen locked and when I returned it was frozen. I restarted and it froze in the login screen (sometimes when I restart it actually log in my account, but freezes right after some minutes). The mouse pointer still moves.

I still can log in remotely through SSH, even though the system is frozen. So I suspect it has to do with the GUI.

It seems the same problem in this question. So I followed the recommendations:

Here's the output of my /var/log/Xorg.0.log

I think the error started in here:

(WW) Jan 21 11:29:46 NVIDIA(0): WAIT
(2, 6, 0x8000, 0x00007b6c, 0x0000aa04)

[mi] EQ overflowing. The server is
probably stuck in an infinite loop.

It seems to be a problem with my video card. How to detect if it was a driver failure or a hardware one? (I can post additional information if needed)

Thanks,

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closed as off topic by Marco Ceppi Feb 2 '12 at 3:42

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

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Have you tried booting into single user mode and updating? - cyberciti.biz/faq/grub-boot-into-single-user-mode –  jrg Mar 29 '11 at 15:10
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This question should instead be filed as a bug report, thanks! Instructions here. –  Jorge Castro Feb 2 '12 at 1:29
    
Hangs tend to be software issues. Graphical hardware issues tend to produce artifacts or nothing at all. –  Cees Timmerman May 11 '12 at 10:05

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