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I have Ubuntu 10.10 (upgraded from 10.04)
I was browsing in Firefox yesterday, then the PC suddenly did a reset

Once it restarted, everything went normal until gdm begun showing. Then everything froze and locked when userlist showed. I can't move mouse pointer nor do anything with keyboard at this point (just after userlist shows in gdm).

PS: Both, mouse and keyboard work fine, because this Ubuntu is dual-booting with a Windows XP install which loads/works fine.

Here is my .xsession-errors file, but I don't have a clue what may be wrong. Thanks

http://pastebin.com/GVtneEAF

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closed as off topic by fossfreedom May 16 '12 at 19:08

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Same problem with kernel 2.6.38-4-generic on natty. All was working fine before this upgrade. –  João Santana Feb 25 '11 at 12:57

2 Answers 2

Similar things started happening to me after I upgraded to the 2.6.35-25 kernel. That may not be the cause of your problem, but try when you boot selecting the previous kernel version instead (2.6.35-24) and see if the problems go away.

Here's a related bug report: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/703553

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Hi edtechdev. I've tried booting with previous kernels from my grub menu, but doesn't help at all –  Enrique Jan 18 '11 at 11:29
    
These are my entries in grub. 2.6.36-020636-generic, (same with recovery mode), 2.6.35-23-generic, (same with recovery mode), 2.6.35-22-generic, (same with recovery mode), memory test, and Windows XP... none of ubuntu entries in grub work –  Enrique Jan 18 '11 at 11:59
    
My problems (from that kernel upgrade as well) needed a power off and battery remove to reset the graphics card to a stable state. After that, try booting your previous kernel. –  Nerdfest Feb 17 '11 at 12:22

The problem/bug is likely in xorg. Please post links to your xorg.log and xorg.0.log (both files are in /var/log). (adding an answer as I don't yet have enough reputation to comment)

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I don't have xorg.log ... I only have these: i.imgur.com/zsNbp.jpg and here I've posted xorg.0.log file details pastebin.com/yw4x0ArX Thanks –  Enrique Jan 18 '11 at 11:23

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