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Ubuntu version 11.10

Since 2 months ago, X crashes and restarts randomly about 5~30min after loging in. Then I found when such crash occurs, the X is running on tty1 instead of tty7.

If I restart X before login, it then runs on tty8, and everything is OK. Sometimes X starts normally on tty7, that will be fine, too.

So, I have to check the current tty immediately after login, and restart X if it's on tty1. That really bothers.

Could any one help?(Which log should I paste here?)

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Once you log in again, the log for the previous X server instance should be in /var/log/Xorg.0.log.old. If there are any interesting messages from just before the server crashes, that would be useful. Also, any dmesg output from around the crash would be useful. – James Henstridge Apr 23 '12 at 6:50
I checked the /var/log/Xorg.0.log.old and found that the NVIDIA module seems broken:""Failed to initialize the NVIDIA kernel module. Please see the system's kernel log for additional error messages". Thanks for your help. – ddcamiu Apr 24 '12 at 11:41
Welcome to Ask Ubuntu! This question should instead be filed as a bug report, thanks! Instructions here. – Jorge Castro Apr 28 '12 at 18:42

closed as off topic by Jorge Castro, Marco Ceppi♦ May 1 '12 at 1:04

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