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I've just upgraded to 11.10 and now nvidia-settings won't launch. If I run it from the command line (as me or as root) it just hangs.

How can I debug this?

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1 Answer

up vote 3 down vote accepted

Try to completely remove your nvidia drivers from your system:

sudo apt-get purge nvidia*

Remove your xorg.conf

sudo rm /etc/X11/xorg.conf

Reinstall xorg completely

sudo apt-get install --reinstall xserver-xorg-core libgl1-mesa-glx:i386 libgl1-mesa-dri:i386 libgl1-mesa-glx:amd64 libgl1-mesa-dri:amd64

Re-configure Xorg

sudo dpkg-reconfigure xserver-xorg

Reboot

sudo reboot

You should be greeted with lightdm, this will default everything x the same way a fresh install would. After that you can try installing nvidia from the "Additional Drivers" application.

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nvidia-current-modaliases isn't available. Does that exist for 11.10? –  Valdis R Oct 14 '11 at 15:29
    
Ignore it, it is necessary to id your card only but drivers work without it. –  Bruno Pereira Oct 14 '11 at 15:30
    
This didn't work. Still hangs. –  Valdis R Oct 14 '11 at 15:56
    
Remove your nvidia-current nvidia-settings packages and reboot, do you get to see the login screen? –  Bruno Pereira Oct 14 '11 at 16:01
    
As an option you can do the same solution and use apt-get --purge remove nvidia-current nvidia-settings to remove any configuration file left over. –  Bruno Pereira Oct 14 '11 at 16:04
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